#mollusc monday

[arthistoryanimalia]

Today is also #WorldOysterDay 🦪 - on a #MolluscMonday !

“Denticulated Oyster” (Striostrea denticulata)

illustration by R. P. Nodder in George Shaw’s The naturalist's miscellany Vol. 16, London, 1804-5

Via BHL

[histsciart]

A Collection of Shells

SciArt of a variety of shells from George Brettingham Sowerby's A Conchological Manual (4th Ed.) (1852).

View more in Biodiversity Heritage Library with thanks to Ernst Mayr Library of the Harvard University Museum of Comparative Zoology.

[ginnungagay]

drawinnnn friendssssss

@saneintolerant @banette

[day10machine]

A walk of snails!

🐌🐌🐌🐌

[zhukzubast]

[mineralsrocksandfossiltalks]

MONDAY'S MOLLUSC: Parapuzosia

This is Parapuzosia seppenradensis, the largest known species of ammonite in the world.

They are 1.8 m or 5.9 ft across and that that one wasn't even complete! The living chamber was missing a chunk so it's even bigger!

It lived during the Campanian Epoch of the Late Cretaceous Period in what is now Europe and North America where the Western Interior Seaway was located.

They were pelagic predators, probably feeding on fish,

squid,

other ammonites,

and even marine reptiles if they could catch them

all while evading adult mosasaurs who definitely had them on the menu.

[starvrat]

mollusc monday !!!!

[teamcatple]

IT'S MOLLUSC MONDAY BAYBEEEEEEEE Let's play some more Side Order!! Which weapon will we (hopefully) take to the top today?! 🍏https://www.twitch.tv/teamcatple🍎

[frenchcoffeebreak]

Monday 17th of July, 2023 | 28th day

Hihihi! It's very late right now but today was nice!

I went to the library as I promised but I didn't do french (at least I kept a half of my promises)

I got 3 books at the library: one is a novel because I've been wanting to read one for so long (well, a month or so), another one is a math book because I've also been meaning to read one and the last one is an encyclopedia on molluscs because I saw it and thought it would be cool to read and I actually started to read a little already.

I also have got back in contact with two people today (wow). One was a friend from 3 years ago which I kind of just lost contact with when she graduated and another one is a girl from my school which I haven't talked to since the summer started because I didn't really know how to, plus she's spending the whole summer at a different country. That's it for today!

[imthatwannabeauthor]

Fish of The Day

Happy Monday everyone!  As I said, now that marching band is over for the season, I am restarting fish of the day! Today we will be focusing on the striped eel catfish! Personally, one of my favorite kinds of catfish, simply due to how cool they look.

Known by the scientific name of Plotosus lineatus, the striped catfish eel is a species of, surprisingly, eeltail catfish (otherwise known as the Plotsidea family) They are a distinct family of the catfish class due to their tails elongated, eel like structure. The tail fin is joined to the caudal and dorsal fin, forming one continuous fin. Where many catfish are known for their body armour, fish within this family are known to have spines along its back (otherwise known as dorsal spines). Within the Plotsidea family this means that these catfish can give a rather painful sting, however, within the case of the striped eel catfish these dorsal spines are highly venomous, and may cause death.

Like almost all catfish, the striped eel catfish are bottom feeders found native in the Indian ocean and Western Pacific as well as some freshwaters in Eastern Africa. They eat "crustaceans, molluscs, polychaete worms - and the occasional fish" as fishesofaustralia.net.au put it. Around Australia they are said to have a reef association. The species can also be found in the Mediterranean as an invasive species that traveled through the Suez Canal, and thus has been marked by the European Union as a species that can not be "imported, bred, transported, commercialized, or internationally released into the environment in the whole of the European Union.". This means Britain, a non European Union affiliated country, is free game for bringing striped eel catfish with intention to release as an invasive species (so long as you ignore that you are commiting environmental terrorism, it would be funny)

The striped eel catfish can reach lengths of 32 cm (13 inches!) long. These fish are often known for the large (about 100 fish!) schooling balls juvenile fish make, as they make mesmerizing patterns while swimming. I will attempt to link videos of this, but I am unsure how accessible they will be. Adults tend to separate from their younger schools as solitary fish, or find themselves in small groups of around 20. During the day these fish can be found hiding under ledges

It has been found that along Mediterranean striped eel catfish there has been no mortality rate from the venomous spines, whereas those found within the Indian ocean have what may be a stronger venom.

Everyone have a nice Monday!

[arthistoryanimalia]

For #WorldOysterDay 🦪:

Odilon Redon (French, 1840-1916) Oyster, c.1900-10 Drawing, brush w/ transparent & opaque watercolor over black chalk on paper, 8 15/16 x 5 1/2 in.; 22.7013 x 13.97 cm Smith College Museum of Art SC 1954.36

[rishabhjaingems]

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. Natural pearls are unbeatable in value as it takes years by living Molluscs to produce natural pearls and incur them by human beings. According to Western astrology, pearl stone is also the birthstone for those who are born in the month of June.

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* Enhances the power of the moon, which signifies softness, charming eyes, love, family life and steady mind. * It removes the ill effects of the Moon, strengthens the mind, and brings emotional balance * Helps in reducing discomforts during sleep and cures insomnia. * Black Pearl protects them from sudden death, accidents, and mishappenings. * People dealing with financial loss can wear Black or Tahitian Pearl. * Pearl helps in curing depression, mental disorders, improving memory, and enhancing the intelligence of the individuals as well. * Cures blood pressure and bladder disease and is also helpful in balancing and maintaining our bodily fluids.

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[histsciart]

Happy Mollusk Monday!

Sea snail shells 🐚 (Genus Cypraea), also commonly known as cowries.

SciArt by Verner for Iconographie des Coquilles Vivantes, T.1: Ptie.1 by Louis Charles Kiener. View in Biodiversity Heritage Library (@biodivlibrary) with thanks to Smithsonian Libraries and Archives (@smithsonianlibraries) for digitizing.

[day10machine]

It is Monday mollusks!

🖤🐚🤍💚🤍🐚🖤 🐙🐌

[zhukzubast]

[mineralsrocksandfossiltalks]

MONDAY'S MOLLUSC: Didymoceras

P. Diddy and Didymo bought to drop some notes!

Okay, probably not and even if they did, I wouldn't know cuz I don't listen to rap but that's neither here nor there. Didymoceras is an odd looking sucker. It's like a cross between a marine snail, a doctor's signatures and a piece of coprolite.

In reality, it's another hetermorphic ammonite. Like the other diva, the baculite, Didymoceras lived during Late Cretaceous. Unlike the baculite, it lived only during the Campanian Stage. There are twenty-one species of Didy and like famous rapper they all pretty much look the same (except in the case of rappers they all sound the same).

They have three growth stages: straight, curled and u-shaped. They also show sexual dimorphism (remember that?) with male specimens averaging 180 mm in height and female specimens averaging 270mm in height.