Photos / Sounds

Observer

peptolab

Date

February 7, 2024 11:40 AM EST

Description

Anigsteinia clarissimum (Anigstein, 1912) Isquith, 1968 ) from the superficial intertidal benthos of a small beach near the boat basin at Moneybogue Bay in Westhampton Beach on the south shore of Long Island. It is imaged in Nomarski DIC using Olympus BH2S under SPlanapo 40 0.95 and SPlanapo 20 objectives plus variable phone cropping on Samsung Galaxy S9+. The cell measures 280 um. We can clearly see the anterior beak, the moniliform macronucleus consisting of a chain of around 30 connected nodules, the small undulating membrane at the posterior end of the long peristome, and the posterior contractile vacuole with lacunar system along the right side extending past the midpoint of the cell up to the anterior 1/4.

Anigsteinia clarissimum (Anigstein, 1912) Isquith, 1968 ) Blepharisma clarissimum Anigstein, 1912 Elongate, with the anterior curving over the buccal area at the apex of the cell, 380 µm in length. The AZM is very long and attains at least one-half the length of the cell. A small undulating membrane is present. The contractile vacuole is posteriorly placed and has a canal running up the right side, which may exceed one-half the body length. The macro nucleus is moniliform and has approximately 30 ovoid units, associated with 10 micronuclei.

"Improved diagnosis Body length about 160–560 μm in vivo, length to width ratio 7–10:1; buccal cavity about half body length; 63–101 adoral membranelles; 18 32 somatic kineties; macronucleus moniliform with 14 50 nodules; conspicuous lacunar contractile vacuole system; marine habitat" (2)

"Description based on Qingdao population Body 230-300 × 35–50 μm in vivo: slender and slightly contractile with tapered posterior end; bilaterally flattened, width to thickness ratio about 3:1. Pellicle flexible, with numerous colourless, spherical cortical granules (0.8–1 μm in diameter) arranged in three or four longitudinal rows between the kineties. Peristome long and narrow, commencing slightly below anterior end of body and extending to mid-body region. About 60–100 adoral membranelles. Paroral membrane conspicuous. Cytoplasm greyish and opaque, packed with globular granules and food vacuoles that are frequently abundant. Macronucleus moniliform with 14 to 26 interconnected nodules, each nodule ellipsoidal and about 7–10 μm in diameter; micronuclei not detected. Conspicuous lacunar contractile vacuole (CV) system, CV terminally located. Locomotion by gliding over substratum, i.e. sand grains, organic debris, bottom of Petri dish. Eighteen to 26 somatic kineties, including six to 11 (right) shortened postoral rows. Cilia about 12 μm long in vivo. Each adoral membranelle consists of one short and two long rows of basal bodies. Paroral membrane divided into three parts: anterior and posterior parts consist of dikinetids with only left basal body of each pair cili ated; middle part consists of several trikinetid fragments with all three basal bodies in each trikinetid ciliated" (2).

  1. Systematics of the genus Anigsteinia Isquith 1968, Acta Protozoologica · January 1974. Irwin Isquith https://www.researchgate.net/publication/285804929
  2. Taxonomy and phylogeny of three heterotrich ciliates (Protozoa, Ciliophora), with description of a new Blepharisma species. YING YAN, YANGBO FAN, XIANGRUI CHEN, LIFANG LI, ALAN WARREN, SALEH A. AL-FARRAJ, and WEIBO SONG. Zoological Journal of the Linnean Society, 2016, 177, 320–334.

Photos / Sounds

Observer

someplant

Date

July 12, 2024 03:10 PM EDT

Description

Magnification of photos: 100×, 200×, 200×, 200×, 200×, 400×, 400×, 400×, 400×, 400×, 600×, 600×, 600×, 100×, 200×, 100×, 200×, 200×, 400×, 100×
Habitat: Saltwater squeezed out of beach mud (by stepping on it), near a saltmarsh. I presume the mud was hypoxic due to its rotten-egg smell.
Photo taken with a Celestron PentaView Digital Microscope. According to their website, the FOV (i.e. the diagonal width) at 100× is 600 µm.
Video available: https://youtu.be/9ug8vwRZt3U
Several individuals present in sample.

Photos / Sounds

What

Polar Bear (Ursus maritimus)

Date

June 16, 2024 09:00 PM +01

Photos / Sounds

Observer

onotole

Date

July 11, 2024 09:07 PM +07

Photos / Sounds

Observer

vicentefranch

Date

March 16, 2020 01:01 PM CET

Description

Nuevo ejemplar en la misma muestra que el anterior.

Photos / Sounds

Observer

peptolab

Date

June 12, 2023 10:04 PM EDT

Description

Trepomonas agilis Dujardin, 1841 from the northernmost saprobic edge benthos of the spring-fed freshwater coastal pond at Ocean Dunes Apartments in the Atlantic Double Dunes Preserve. This sampling site is situated 250 meters from the edge of the Atlantic Ocean and is rich in decaying organic matter. Imaged in Nomarski DIC using Olympus BH2 under SPlan 40x objective plus variable phone cropping on Samsung Galaxy S9+. Thanks to Ivan Čepička for identifying this observation. This is the largest diplomonad I observed - only a single cell was found measuring 18 μm long.

A diplomonad dance party. Today's slide from the northernmost saprobic edge benthos of spring-fed freshwater coastal pond at Ocean Dunes Apartments in the Atlantic Double Dunes Preserve got richer and richer in diplomonad flagellates the longer the slide sat on the stage.

"The body of T. agilis has the form of an elongate bilaterally compressed ovoid or pear, rounded or sometimes flattened at the anterior extremity. The posterior extremity appears similarly rounded or flattened when viewed from either of the 2 composed surfaces but appears considerably more pointed when viewed from the side. Two oral grooves are cut into the flattened surfaces of the body, one on either side, and run for almost the complete length of the body, conferring an S-shaped profile in cross-section. Each oral groove is skewed, beginning as a slight depression at the anterior extremity and, passing backwards in a counterclockwise direction, reaching a maximum width and depth at ~2/3 way down the length of the body. Each groove terminates as a narrow channel, the posterior channel, at the posterior extremity where it appears to be continuous with the channel from the oral groove of the other side of the body. The right lateral margin of each groove is a tenuous curved flange; the left lateral margin merges smoothly with the dilated central part of the body but is drawn into prominent crests as it approaches anterior and posterior limits of the groove. The 2 pyriform nuclei form a horseshoe configuration at the anterior extremity of the body, their broader ends closely juxtaposed to one another. There are no phase-dense inclusions in the nuclei of living flagellates. Each nucleus tapers sharply posteriorly. At its pointed end is inserted a group of 4 flagella which arise from within the oral groove. The locomotor flagella have a base-to-tip beat and like the oral flagella are acronematic. In immobilized flagellates they curve outwards in a forward direction. Each locomotor flagellum is longer than its associated 3 oral flagella. The oral flagella beat very rapidly within the confines of the oral grooves. The oral flagella appear to produce currents in the ambient medium which bring bacteria and starch granules to the oral groove surface for ingestion. Such currents can be seen when the locomotor flagella are completely motionless so these flagella probably have little to do with the feeding process. Food particles are rapidly ingested into vacuoles formed from the oral groove lining" (1).

"Remarks: This species has been found at a marine site in Australia (Bernard et al. 2000), and also has been reported widely from freshwater, wastewater and anoxic (e.g. Playfair 1921, Lavier 1936, Calaway and Lackey 1962, Brugerolle 1973, Eyden and Vickermann 1975, Zhukov and Mylnikov 1983, Fenchel et al. 1995). Previously reported cell length ranges are from 8 to 22 ??. This genus was reviewed by Mylnikov (1985) to include 7 norninal species: Trepomonas agilis Dujardin, 1841, T angulatus Klebs, 1893, T communis Klebs, 1893, T latecapitata Skuja, 1956, T rotans Klebs, 1893, T simplex Klebs, 1893, T steini (Stein, 1878) Klebs, 1893. Trepomonas agilis is hard to distinguish T angulatus, T. communis and T simplex, which have similar features such as cell appearance and having two long flagella and six short flagella (T. agilis, 8-22 ??; T angulatus, 30 ??; T communis, 13-25 ??; T. simplex, 7-8 ??). Trepomonas communis was regarded as a junior synonym of T agilis (Bernard et al. 2000). Here, other two species (T angulatus and T. simplex) are regarded as junior synonyms of T agilis" (2).

"Diplomonad flagellates include the genera Trepomonas and Hexamita. Most genera of diplomonads are parasites, and the few genera that are free-living are usually found in organically enriched (and usually anaerobic) sites. The cells are bilaterally symmetrical along their longitudinal axis. There are two anterior nuclei, and associated with each are four flagella which arise at the head of a groove in the body surface. The genera may be distinguished by the relative lengths of the flagella and by the flexibility of the bodies. In both genera, one flagellum of both quartets extends laterally from the head of the groove. The remainder lie within the groove, with those of the more pliable Trepomonas not extending beyond the posterior margin of the cell, as do those of Hexamita . These organisms may feed either by eating bacteria or by pinocytosis" (3).

  1. Brian P. Eyden and Keith Vickerman; Ultrastructure and Vacuolar Movements in the Free-Living Diplomonad Trepomonas agilis Klebs. J.Protozool. 22(1):54-66, 1975
  2. Small Free-Living Heterotrophic Flagellates from Marine Intertidal Sediments of the Sydney Region, Australia. Won J. Lee. Acta Protozool. (2019) 58: 167–189.
  3. Free-Living Freshwater Protozoa: a Color Guide 1st Edition By D.J. Patterson. CRC Press Taylor and Francis Group. p 64.

Photos / Sounds

What

Blanding's Turtle (Emydoidea blandingii)

Date

July 2024

Description

Crossing 5 lanes of traffic

Photos / Sounds

What

Silver Y (Autographa gamma)

Observer

onotole

Date

July 11, 2024 06:33 PM +07

Photos / Sounds

What

Zigzag Furcula Moth (Furcula scolopendrina)

Observer

mikewerner

Date

July 10, 2024 12:02 AM EDT

Photos / Sounds

What

Yarrow Leaf Plume Moth (Oidaematophorus mathewianus)

Observer

mikewerner

Date

July 9, 2024 11:30 PM EDT

Tags

Photos / Sounds

Observer

mnold1

Date

September 4, 2023 09:28 PM EDT

Description

Mag 100x (1), 400x (2-4)

  • A water sample was taken on 09/03/2023 from pond-edge using a 10µ dip net to enrich for microbes. Air temp. 80°F.

Test of a lobose amoeboid, a relatively large specimen of N. corona. The aperture is ~120µ wide, For some reason, I kept hearing the "Ride of the Valkyries" in my head, and eventually surfacing in an audible humming, while editing these photos.
For reference photos, see https://arcella.nl/netzelia-corona/,

Birds

Photos / Sounds

What

Birds (Class Aves)

Observer

gzoo

Date

July 2024

Description

A lovely blue-tinged downy feather, not sure whom it belonged to.

Photos / Sounds

What

European Glow-Worm (Lampyris noctiluca)

Observer

cattanea

Date

July 9, 2024 11:11 PM CEST

Photos / Sounds

What

Common House Spider (Parasteatoda tepidariorum)

Observer

emilita

Date

July 8, 2024 07:10 PM MDT

Photos / Sounds

Observer

pluvierdodu

Date

July 8, 2024 11:41 PM EDT

Photos / Sounds

What

Mites and Ticks (Subclass Acari)

Observer

aegolius99

Date

July 9, 2024 07:09 PM EDT

Description

Small red dots between scales

Photos / Sounds

Observer

onotole

Date

July 9, 2024 07:33 AM +07

Photos / Sounds

Observer

onotole

Date

July 9, 2024 07:38 AM +07

Photos / Sounds

Observer

onotole

Date

July 9, 2024 10:57 AM +07

Photos / Sounds

Observer

emilita

Date

July 6, 2024 05:52 PM MDT

Photos / Sounds

What

Purple Sulfur Bacteria (Order Chromatiales)

Observer

onotole

Date

July 7, 2024 06:48 PM +07

Description

From a puddle

Photos / Sounds

What

Halloween Pennant (Celithemis eponina)

Observer

eontlichens

Date

July 2, 2024 10:25 AM EDT

Photos / Sounds

What

Osprey (Pandion haliaetus)

Observer

pluvierdodu

Date

June 30, 2024 09:21 AM EDT

Photos / Sounds

Observer

onotole

Date

July 2, 2024 01:29 PM +07

Photos / Sounds

Observer

crseaquist

Date

December 25, 2022 11:02 AM CST

Description

Images
1 General size
2 Lateral view
3-4 Show ridges
5-8 Show placement of cirri

Water sample (freshwater) was taken on 10/13/2022 using a 10µm dip net to enrich for microorganisms.

Photos / Sounds

What

Ghost Pipe (Monotropa uniflora)

Observer

jdoubt

Date

June 2024

Photos / Sounds

What

Disparaged Arches Moth (Orthodes detracta)

Observer

emilita

Date

June 22, 2024 11:28 PM MDT

Photos / Sounds

Observer

emilita

Date

June 22, 2024 11:12 PM MDT

Photos / Sounds

What

Blinded Sphinx (Paonias excaecata)

Observer

eontlichens

Date

June 29, 2024 07:13 AM EDT

Photos / Sounds

Observer

someplant

Date

June 29, 2024 10:17 AM JST

Description

Magnification of photos: 400×, 400×, 400×, 400×, 400×, 400×, 600×, 600×, 600×, 600×
Habitat: muddy water collected from the bottom of a pond.
Photo taken with a Celestron PentaView Digital Microscope. According to their website, the FOV (i.e. the diagonal width) at 400× is 150 µm.
Videos available: https://youtu.be/YByRVuHvPp0
https://youtu.be/mOrW7dFYzZQ

Photos / Sounds

What

Hillside Arnica (Arnica fulgens)

Observer

emilita

Date

June 21, 2024 11:28 AM MDT

Photos / Sounds

What

Powdered Ruffle Lichen (Parmotrema hypotropum)

Observer

eontlichens

Date

June 2024

Description

A surprise discovery at a pull-off in the Haliburton Highlands. On a south-facing, lichen-rich spruce, about 2-2.5 meters off the ground. A beautiful species!

Photos / Sounds

What

Blue-edged Scale Lichen (Psorula rufonigra)

Observer

samuelbrinker

Date

June 2024

Photos / Sounds

What

Boreal Oakmoss (Evernia mesomorpha)

Observer

sarahfillmore

Date

June 8, 2024 08:30 PM EDT

Photos / Sounds

What

Glorious Habrosyne Moth (Habrosyne gloriosa)

Observer

deckimeters

Date

June 24, 2024 09:28 AM EDT

Photos / Sounds

What

Pale Beauty (Campaea perlata)

Observer

jonathan_mack

Date

June 18, 2024 10:33 PM EDT

Photos / Sounds

What

Digger Slope-rumped Beetle (Clivina fossor)

Observer

jonathan_mack

Date

June 18, 2024 10:37 PM EDT

Photos / Sounds

Observer

sarahhubert

Date

June 19, 2024 07:19 PM CDT

Photos / Sounds

Observer

sarahhubert

Date

June 19, 2024 05:31 PM CDT

Photos / Sounds

What

Olive-brown Cup (Chlorencoelia versiformis)

Observer

sarahhubert

Date

June 19, 2024 05:17 PM CDT

Photos / Sounds

What

Buffalo Treehopper (Stictocephala bisonia)

Observer

sarahhubert

Date

June 19, 2024 04:42 PM CDT

Photos / Sounds

Observer

plingfactory

Date

November 12, 2011 08:58 PM CET

Description

hymenostomatid ciliate with characteristic "Lieberkuensches Organell". See more details here:
http://www.plingfactory.de/Science/Atlas/KennkartenProtista/01e-protista/e-Ciliata/e-source/Ophryoglena2.html

Photos / Sounds

What

Great Crested Flycatcher (Myiarchus crinitus)

Observer

mnold1

Date

June 2024

Photos / Sounds

Observer

sarahhubert

Date

June 15, 2024 12:39 PM CDT

Photos / Sounds

What

Powdery Kidney Lichen (Nephroma parile)

Observer

eontlichens

Date

June 2024

Photos / Sounds

Observer

ikhom

Date

June 8, 2024 04:40 PM EDT

Description

On the ground under Oak and Maple. Apothecia 5.5mm in diameter. Probably my largest specimens.
Found another at the same spot on June 22, 2024. Spores were the same (last 2 pictures).

Tags

Photos / Sounds

What

Wandering Tattler (Tringa incana)

Observer

emilita

Date

June 9, 2024 06:29 PM MDT

Photos / Sounds

What

Alpine Bloodspot Lichen (Ophioparma ventosa)

Observer

mtjones

Date

May 2024

Photos / Sounds

Observer

peptolab

Date

June 5, 2024 10:27 AM EDT

Description

Colpoda cucullus O.F. Muller, 1773 from algae-infused water wrung from fallen leaves that spent the winter submerged on my swimming pool cover. Imaged in Nomarski DIC on Olympus BH2S using SPLANAPO 40 0.95 objective and SPLAN 100 1.25 oil objective with slide oiled to the condenser. The cells measure from 80-100 um in length. We can clearly see the two most important characters which differentiate C. cuculus from other species in the genus: the stellate endosome of the spherical macronucleus and the anterior keel with 9-10 indentations.

" 40-110 um long; anterior keel with 8 to10 indentations; 29-34 ciliary grooves; cilia mostly paired; macro nucleus with a stellate endosome; trichocysts rod-form; usually with abundant food vacuoles; in fresh water with decaying plants" (1).

"Body distinctly reniform in shape, dorso-ventrally flattened. Right body edge strongly convex, left body edge concave often appearing as through a bite had been taken from it. A shallow diagonal somatic groove (not easily visible) originating on the dorsal surface travels round left side to entrance of vestibulum on the flattened ventral surface. Ciliation uniform in longitudinal or oblique orientated grooves. Several notches which denote ciliary grooves often visible on preoral part of left body edge. Caudal cilia may be present on some species. There is a horse-shoe shaped arc of closely-set cilia on the right of the vestibular entrance. Single rounded macronucleus with 1, 2 or 3 micronuclei. Single terminal contractile vacuole. Division takes place in thin-walled cysts, thick-walled protective cysts also formed" (2).

"Morphology Length 40-120 um, average about 80 um; broadly reniform, anterior keel with 8-10 indentations; uniform ciliation; buccal cavity with a deep oral funnel starting at a groove near the left side of the body, the buccal cavity leads to a diagonal groove on the dorsal surface (not evident in the figure), buccal cavity ciliated but without membranes or membranelles; 1 spherical macronucleus, exhibiting a stellate endosome; 1 micronucleus; a single terminal contractile vacuole; in the presence of a good food supply, the body is packed with food inclusions and appears very dark; fission only takes place within reproductive cysts" (3).

" Colpoda cucullus, previously considered a "soil" protozoan, is predominantly a vegetation-associated species that is especially adapted, through its ability to encyst and excyst rapidly, to exploit the fluctuating moisture content of the terrestrial environment. Three means of distribution were discovered which explain the ubiquity of this species. Herbivores consume Colpoda cysts while feeding on infested vegetation and deposit them with their feces; the cysts are transported by honey-bees along with pollen grains; and they are also carried through air like pollen. Dew induces excystment and contains sufficient nutritional substances to support profuse growth and reproduction" (4).

  1. PROTOZOOLOGY By RICHARD R. KUDO. CHARLES C THOMAS • PUBLISHER Springfield, Illinois. 1954. pp 745-6.
  2. Colin R. Curds "British and other freshwater ciliated protozoa Part I Ciliophora: Kinetofragminophora" Cambridge University Press, 1982
  3. CILIATED PROTOZOA. An illustrated guide to the species used as biological indicators in freshwater biology HARTMUT BICK. WORLD HEALTH ORGANIZATION GENEVA 1972 pp 64-5.
  4. Colpoda cucullus: A Terrestrial Aquatic.Jo Anne Mueller, Wayne P. Mueller. The American Midland N

Photos / Sounds

What

Olive-thorn Lichen (Dendriscocaulon intricatulum)

Observer

iaincrowell

Date

June 7, 2024 02:25 PM EDT

Description

@davidfbird check this out. The cyanomorph (Dendriscocaulon) which has been there for years finally has Ricasolia (the green algae morph) lobules growing from it! Troy was pumped.

Photos / Sounds

What

Peppered Moth (Biston betularia)

Observer

ziggypop74

Date

June 5, 2024 11:50 PM EDT

Description

Inventaire sur la Ferme Expérimentale de Frelighsburg avec Annie-Eve Gagnon.

Photos / Sounds

What

Mottled Euchlaena Moth (Euchlaena tigrinaria)

Observer

ziggypop74

Date

June 5, 2024 11:39 PM EDT

Description

Inventaire sur la Ferme Expérimentale de Frelighsburg avec Annie-Eve Gagnon.

Photos / Sounds

What

Whooping Crane (Grus americana)

Observer

emilita

Date

June 2024

Photos / Sounds

Observer

samuelbrinker

Date

June 3, 2024 06:38 PM IST

Photos / Sounds

Observer

northernphytoid

Date

May 17, 2024 04:14 PM EDT

Description

Looking for information on the epiphytic organism attached to the zooplankton here

Photos / Sounds

What

Frosted Rim-Lichen (Lecanora caesiorubella)

Observer

lmkamstra

Date

June 2, 2024 01:08 PM EDT

Description

In a fen on conifer

Photos / Sounds

What

Scale Insects (Superfamily Coccoidea)

Observer

upupa-epops

Date

February 19, 2024 10:51 AM EST

Photos / Sounds

Observer

samuelbrinker

Date

June 2, 2024 12:09 PM IST

Photos / Sounds

What

Common Lichens (Class Lecanoromycetes)

Observer

upupa-epops

Date

February 24, 2024 03:52 PM EST

Photos / Sounds

What

Ghost Pipe (Monotropa uniflora)

Observer

jonathan_mack

Date

June 2, 2024 02:02 PM EDT

Photos / Sounds

What

Jelly Lichen (Enchylium tenax)

Observer

roman_romanov

Date

June 1, 2024 01:35 PM CEST

Photos / Sounds

What

Olive-sided Flycatcher (Contopus cooperi)

Observer

eontlichens

Date

May 31, 2024 07:55 AM EDT

Photos / Sounds

What

The Sorcerer (Aedia leucomelas)

Observer

cattanea

Date

May 31, 2024 10:16 PM CEST

Photos / Sounds

What

Confusing Furrow Bee (Halictus confusus)

Observer

emilita

Date

May 8, 2024 05:43 PM MDT

Photos / Sounds

What

White-crowned Sparrow (Zonotrichia leucophrys)

Observer

emilita

Date

May 9, 2024 08:41 AM MDT

Photos / Sounds

Observer

emilita

Date

May 9, 2024 04:03 PM MDT

Photos / Sounds

What

Swainson's Thrush (Catharus ustulatus)

Observer

emilita

Date

May 12, 2024 10:39 AM MDT

Photos / Sounds

What

Pepper-Spore Lichens (Genus Rinodina)

Observer

emilita

Date

May 26, 2024 11:24 AM MDT

Photos / Sounds

What

Wrinkled Thimble Morel (Verpa bohemica)

Observer

emilita

Date

May 26, 2024 12:14 PM MDT

Photos / Sounds

Observer

mossgeek

Date

March 28, 2024 06:32 AM MST

Photos / Sounds

Observer

mossgeek

Date

March 28, 2024 06:32 AM MST

Description

on rock

Photos / Sounds

Observer

crseaquist

Date

April 17, 2024 09:22 AM CDT

Description

Gathered dry leaves on 2024-02-03 and stored in water.

Photos / Sounds

Observer

janie_c

Date

April 2024

Description

Spores, 16+/asque

Tags

m

Photos / Sounds

What

Palm Warbler (Setophaga palmarum)

Observer

taylorse

Date

April 24, 2022 04:22 PM EDT

Photos / Sounds

What

Warbling Vireo (Vireo gilvus)

Observer

mhincz

Date

May 18, 2024 10:00 AM EDT

Photos / Sounds

What

Common Garter Snake (Thamnophis sirtalis)

Observer

mhincz

Date

May 18, 2024 03:13 PM EDT

Description

Melanistic garter snake.

Photos / Sounds

What

Bacteria (Kingdom Bacteria)

Date

November 22, 2023 06:50 PM +05

Description

Video: https://youtu.be/YkORShmMZTk
Sampling location: The soil sample was collected from the bank of a pond on the Bagaryak River, near the water. The soil was wet but gradually dried out.
Date and time of collection: September 8, 2023
The sample was stored in a sealed glass container at room temperature.
On September 22, 2023, at 1 PM, a small amount of this soil was mixed with clean water.
Date and time of observation: November 22, 2023, at 7 PM

A number of clusters of bacteria in an unidentified particle of dead organic matter.
Rod-shaped bacteria that form star-shaped clusters. Each bacterium is constantly moving. So is each cluster as a whole.

Photos / Sounds

What

Powdered Moon Lichen (Sticta limbata)

Observer

samuelbrinker

Date

May 17, 2024 05:53 PM IST

Photos / Sounds

Observer

samuelbrinker

Date

May 2024

Place

Sligo, IE (Google, OSM)

Description

I

Photos / Sounds

What

Winter Midges (Genus Diamesa)

Observer

crseaquist

Date

April 8, 2024 01:56 PM EDT

Photos / Sounds

Observer

eontlichens

Date

May 16, 2024 02:41 PM EDT

Photos / Sounds

What

Wilson's Warbler (Cardellina pusilla)

Observer

burke_korol

Date

May 16, 2024 09:34 AM ADT

Photos / Sounds

What

Golden-winged × Blue-winged Warbler (Vermivora chrysoptera × cyanoptera)

Observer

rgeraldporter

Date

May 8, 2015

Description

F3 Hybrid Blue-winged Warbler x Golden-winged Warbler : as described in pp 156,158 https://www.westernfieldornithologists.org/archive/V42/WB-V42(3)-webComp.pdf

"This decision recognized evidence from the zone of hybridization that a black
postocular eyeline curling down around the auriculars is typical of F3 or F4 hybrids."

Photos / Sounds

What

Short-tailed Weasel (Mustela richardsonii)

Observer

burke_korol

Date

May 13, 2024 08:33 AM ADT

Photos / Sounds

Observer

strangway

Date

May 5, 2024 03:00 PM EDT

Description

Surface water grab from the Matchedash Bay - South Beaver Pond.

Photos / Sounds

What

Forked Fungus Beetle (Bolitotherus cornutus)

Observer

woodgreg

Date

May 2024

Photos / Sounds

Date

June 25, 2023 10:18 AM +05

Description

Observation of 14 specimens of Bicosoeca. This water sample was rich in this genus of flagellates. And in fact, there were even more, but I decided to limit myself to the most successful specimens from the microscopic point of view. I have no certainty that they all belong to the same species. If you can see that there is more than one species, please tell me about it and I will split the observation.

A water sample was taken from the bank of the Ufa River. The sample was stored at room temperature and observed 7 days after collection.

Video: https://youtu.be/Q2yi91jhIXE

Photos / Sounds

What

Painted Turtle (Chrysemys picta)

Observer

eullstrom

Date

May 1, 2024 02:31 PM PDT

Description

Found dead:(

Photos / Sounds

What

Cucujiform Beetles (Infraorder Cucujiformia)

Observer

deckimeters

Date

May 4, 2024 06:27 PM EDT

Photos / Sounds

What

White-eyed Vireo (Vireo griseus)

Observer

oridgen10

Date

April 29, 2024 01:19 PM EDT

Photos / Sounds

What

Hooded Warbler (Setophaga citrina)

Observer

oridgen10

Date

April 29, 2024 09:49 AM EDT

Photos / Sounds

What

American Goldfinch (Spinus tristis)

Observer

oridgen10

Date

April 29, 2024 08:41 AM EDT

Photos / Sounds

What

Copper Patch Lichen (Sporastatia testudinea)

Observer

ahuereca

Date

September 7, 2023 12:47 AM MDT

Photos / Sounds

Observer

ahuereca

Date

September 7, 2023 12:49 AM MDT

Photos / Sounds

Observer

peptolab

Date

April 27, 2024 10:50 PM EDT

Description

Spirostomum ambiguum Ehrenberg, 1834. from the superficial river edge benthos of the freshwater segment of the estuarine Peconic River. Imaged in Nomarsdki DIC on Olympus BH2S using Splanapo 20 0.70 and SPlanapo 40 0.95 objectives plus variable phone camera cropping on Samsung Galaxy S9+. The cell measures 960 um in length. The peristome is 2/3 the length of the body with the cytostome at the posterior 2/3 location. There is a large terminal contractive vacuole with a long collecting canal reaching almost the anterior end of the cell. The macronucleus is moniliform forming a chain of connected elongate spindle shaped macronuclear nodules beginning at the anterior 40% of the cell length and extending almost to the posterior end.

"Spirostomum ambiguum Ehrenberg, 1834. [syn: Trichoda ambiguum Müller, 1786; S. ambiguum var. major Roux, 1901] 900 m several mm long. Length: width ratio about 9-17. 15-25 kineties on each side; heterogeneous, numerous (4-5) CG rows per stripe. Peristome always longer than 1/2 of the body length, often reaching 2/3. CV much shorter than body length, rarely exceeding 1/10. The color depends on cytoplasmic granules. Moniliform MAC with 12-50 (avg. 15-25) nodules not exceeding 35 45 m in length when stained by Feulgen reaction. Numerous (up to 100) MICs 1-2 m long. Mono phyletic. Only found in freshwater. Reported in central and northern Europe, England, Russia, central Africa, USA, Jamaica, India and Japan. It sometimes harbors prokaryotic symbionts in the MAC. Spirostomum ambiguum is a well-defined, easily recognizable morphospecies whose monophyly is also strongly supported by molecular sequences" (1).

"Differential diagnosis
1) Size in vivo 1-000-4000 x 48-100 um, mostly 1200-2000 um. Visible with the naked eye as a white thread. Very flexible and contractile, shortens to approximately 390-430 x200-220 um. Contracted cells cigar-shaped.
2) Shape slender to moderately broad worm-shaped, more or less parallel-sided, 10-17 times longer than wide. Front end rounded, rear end truncated. Slightly flattened laterally. Ventral side in area of ​​the mouth entrance slightly bulging.
3) Macronucleus moniliform or rosary-shaped, consists of 10-50, mostly 15-20 ellipsoids, about 18-53 x 12-24 um large nodes that form a long band that approaches the dorsal side. The number of nodes correlates positively with the age of the cell (REPAK & ISQUITH L974).
4) Contractile vacuole at the posterior end, with a long collecting duct extending forward along the dorsal side which sometimes shows ampullary extensions.
5) Close under the pellicle there are many spherical, spherical, yellowish granules arranged in elongated bands of 4-5 rows each which give the cell a yellowish to brownish color.
6) About 70-90 slightly spiraling rows of cilia, consisting of basal bodies arranged in pairs are constructed, but only the front one has a cilium.t
When the cells contract (startle reaction), the rows of eyelashes spiral around the body.
7) The adoral membrane zone extends from the anterior end to the posterior third (about 65-70 % of the body length) and turns to the right at the lower end. Parallel to the adoral membranelle zone a non-ciliated oral groove, which is bordered on the right by an undulating membrane.
8} Movement hatching, worm-like crawling and writhing. Fluidity with longitudinal rotation axis, with the front end describing a cone-shaped body of revolution. In the plankton falling floating with inclined longitudinal axis" (2).

"Spirostomum ambiguum is easy to recognize because of its size and shape, but the differentiation with S. minus causes considerable difficulties. There are many shape variations which occur, size and shape are not reliable distinguishing features. Usually S. minus is significantly slimmer and almost never reaches a length of 1 mm, while S. ambiguum is more compact, stockier and over 1 m long. Only the length of the adoral membrane zone in relation for body length (S. ambiguum: 65-70 %; S. minus: 35-50%) remains reasonably reliable distinguishing feature, but here too the differences do not seem to be too pronounced. Furthermore, the ciliates S. semivirescens have a similar size and shape (up to 2 mm, very slender, adoral membrane zone up to 50 % of body length, green through symbiontic algae) and Homalozoon vermiculare (up to 1.5 mm, 5-21 contractile vacuoles along the dorsal side, mouth small and only at the front end) as well as microturbellaria and nematodes. The characteristics 1,3 and 7 are particularly important for identification" (2).

  1. Focusing on Genera to Improve Species Identification: Revised Systematics of the Ciliate Spirostomum Vittorio Boscaroa,1, Daniela Carducci, Giovanna Barbieri, Marcus V.X. Senra, Ilaria Andreoli, Fabrizio Erra, Giulio Petroni, Franco Verni, and Sergei I. Fokin. Protist, Vol. 165, 527–541, August 2014
  2. FOISSNER W., BERGER H. & KOHMANN F. (1992): Taxonomische und ökologische Revision der Ciliaten des Saprobiensystems - Band II: Peritrichia, Heterotrichida, Odontostomatida. – Informationsberichte des Bayer. Landesamtes für Wasserwirtschaft, 5/92: pp 317-25.

Photos / Sounds

Observer

mnold1

Date

April 22, 2024 10:53 PM EDT

Description

mag. 400x

  • A pond-side water/periphyton sample was taken 04/22/2024 using a small sample bottled attached to an extension pole. Air temp 61F.

Long, juggling club-shaped cells, with siliceous scales, on stalks directed toward the colony center. Two flagella per cell, one long one short. This taxon has been previously observed in this general location, https://www.inaturalist.org/observations?place_id=any&taxon_id=494360&user_id=mnold1&verifiable=any.

Video shows a slowly rotating colony, https://youtu.be/nJn1INXd_co.

Ref. https://www.keweenawalgae.mtu.edu/gallery_pages/synurophyceans.htm

Photos / Sounds

What

Lemon-rumped Warbler (Phylloscopus chloronotus)

Observer

ziggypop74

Date

March 29, 2024 09:50 AM +06

Photos / Sounds

What

Yellow Palm Warbler (Setophaga palmarum ssp. hypochrysea)

Observer

eontlichens

Date

April 25, 2024 09:38 AM EDT

Description

First Lanark County record

Photos / Sounds

Observer

mnold1

Date

April 22, 2024 04:42 PM EDT

Description

Mag. 400x (1,4,6); 200x (2,3,5)

  • A pond-side water/periphyton sample was taken 04/22/2024 using a small sample bottled attached to an extension pole. Air temp 61F.

Various forms of Hyalotheca dissiliens. The first 3 images show a mass of H. dissiliens zygospores. These masses are the largest I've encountered and were seen throughout the slide. The 4th image shows a segment of H. dissiliens with cells attached in filamentous form, surrounded by broad mucilaginous sheath. The last 2 images show H. dissiliens in single cell format. Both lateral views (barrel-shaped) and apical views (where the chloroplast has a stellate form) are visible.
Ref. https://www.outerhebridesalgae.uk/desmids/desmid-species.php?id=324

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