#marine gastropod mollusk

[samimarkart]

sea angel

[a-book-of-creatures]

Some representative marine gastropods.

From Storer, Usinger, Stebbins, and Nybakken (1972) General Zoology (5th Ed.).

[typhlonectes]

Snails in the genus Julia have a bivalved shell, like a clam!

Even though they have a clam like shell, with 2 sections, they are in fact snails (class Gastropoda). Julia are marine snails, found throughout the Indo-Pacific. There are 6 species which are various shades of green. They are tiny, only reaching a length of up to 6 mm long. These snails feed on algae, and incorporate the chloroplasts from the algae into their bodies. Some of the chloroplasts remain photosynthetic, and the snails are able to feed on the products of this photosynthesis. This process is called kleptoplasty.

Photos: Julia sp. from Australia  - profmollusc | Inaturalist cc; Julia exquisita from Reuinion Island - Alexandre LaPorte | Wikipedia cc

[vestaignis]

Рог тритона , или харония тритон , или тритонов рог— брю­хоногий моллюск из рода Charonia . В древнегреческой ми­фологии существует легенда, что Зевс наг­радил Пана рогом Три­тона, который издавал громкие звуки, слу­жа сигнальной трубой.

Раковина Тритониса одна из самых больших ракушек в мире - ее длина до 45 см. Имеет ба­шневидную форму, с крупным последним оборотом и стройной заострённ­ой вершино��. Общая окраска раковины харонии— бежевая, с множеств­ом С-образных пятен и линий коричневого цвета. Спиральные бо­роздки оранжевые, за­родышевая раковина фиолетовая. Окраска ноги моллюска ярко-жёлтая с широ­кими поперечными чер­ными полосами.

Тритонов рог обитает на глубине 5—30 м. Насе­ляет коралловые рифы и мелководья. Этот брю­хоногий моллюск хищни­к. Питается в основн­ом морской звездой «терновый венец», мор­скими ежами, гребешк­ами. Слюнные железы моллюска вырабатывают секрет, содержащий 3—4 % свободной се­рной кислоты, а также аспарагиновую кисл­оту, приводящую игло­кожих в состояние оц­епенения.

Распространена харония тритон в Тропическом Индо-Тих­оокеанском районе - от Филиппинских остров­ов до Окинавы. На островах Океании раковины этого моллю­ска применяли в каче­стве музыкального ин­струмента — трубы. Островитяне высверли­вали отверстие в вер­хних оборотах завитк­а, что позволяло пол­учать звуки различных тональностей и исп­олнять мелодии.

Triton's horn, or Charonia triton, or Triton's horn is a gastropod mollusk of the genus Charonia. In ancient Greek mythology, there is a legend that Zeus awarded Pan with Triton's horn, which made loud sounds, serving as a signal trumpet.

Triton's shell is one of the largest shells in the world - its length is up to 45 cm. It has a tower-shaped shape, with a large last whorl and a slender pointed apex. The general color of the Charonia shell is beige, with many C-shaped spots and lines of brown color. Spiral grooves are orange, the embryonic shell is purple. The color of the mollusk's foot is bright yellow with wide transverse black stripes.

Triton's horn lives at a depth of 5-30 m. It inhabits coral reefs and shallow waters. This gastropod is a predator. It feeds mainly on the crown-of-thorns starfish, sea urchins, and scallops. The salivary glands of the mollusk produce a secretion containing 3-4% free sulfuric acid, as well as aspartic acid, which causes echinoderms to become stupefied.

The triton charonia is widespread in the tropical Indo-Pacific region - from the Philippines to Okinawa. On the islands of Oceania, the shells of this mollusk were used as a musical instrument - a pipe. The islanders drilled a hole in the upper turns of the curl, which allowed them to produce sounds of various tonalities and perform melodies.

Источник: //www.youtube.com/watch?v=lV1D_QmbehA&ab_ channel =JamesKregness, //dzen.ru/a/X5nMW5A3CFgh7EpC, /animals.pibig.info/37363-haronija-triton.html,//i-prize.ru /products / charonia-tritonis,/seaforum.aqualogo.ru/topic/54178-улитка-рог-тритона-charonia-tritonis/,http://www.underwaterkwaj.com /shell/ triton/Charonia-tritonis.htm.

[wikipediapictures]

Caldukia

“Caldukia rubiginosa, a proctonotid nudibranch. Porirua, New Zealand.” - via Wikimedia Commons

[uncharismatic-fauna]

Settle in with a Sea Angel

Better known as the naked sea butterfly or the common clione, Clione limacina is a species of pelagic sea slug (aka sea angels or gimnosomates) found throughout the open water of the north Atlantic, north Pacific and Arctic Oceans. They reside in both the epipelagic and mesopelagic regions, from the surface to depths of over 500 m (1,600 ft). As extremophiles, they can withstand extremely cold temperatures of −0.5 to 3°C (32°F to 37°F).

The common clione is named for its wing-like fins, which propel it through the water. The body is otherwise quite simple in design, and completely transluscent save for the organs, which are a vibrant orange. C. limacina is also notable for being the largest sea angel; the northernmost populations can reach 7–8.5 cm (2.8–3.3 in) in length.

Though they look beautiful the naked sea butterfly is actually a voracious predator. They primary prey are tiny, shelled sea butterflies. When it encounters a target, the sea angel's 'head' opens and it extracts the butterfly from its shell using a set of tentacles and chitinous hooks. When it cannot find sea butterflies, C. limacina will also consume small amphipods copepods. However, they can also survive up to a year without food of any kind. In turn, common cliones are also prey for a variety of marine life including fish such as chum salmon, and baleen whales.

Though little is known about the reproductive habits of C. limacina, research suggests that they are simultaneous hermaphrodites; individuals contain the sex organs for both males and females. They mating peaks during the spring and summer, and lay about 30-40 eggs afterwards. The larvae stay in the top 200 m (650 ft) of the water column to feed on phytoplankton until they reach maturity. It is generally thought that they can live to be about two years old in the wild.

Conservation status: Clione limacina has not been evaluated by the IUCN; however, like most sea slugs, they have a large population and are not considered to be endangered. However, they may be threatened by the rising temperatures in their natural habitat.

Photos

Kevin Raskoff

Richard Satterlie

Andrey Narchuk

[strawlessandbraless]

Behold, for there are Sea Butterfly’s afoot 🌊 🦋 🐌

📷 source: X

[ouzel-time]

Appreciation for critters that look like they're from a spec evo project:

[ocean-dragon]

🤍💕 Dirona albolineata 💕🤍

[goblinfables]

thinking about also starting up some Mollusk Monday

Common Periwinkle water snail! :>

[herpsandbirds]

Sea Slug (Tambja sp.), family Polyceridae, Bali, Indonesia

photograph by Aldo Galante

[mimblex]

BANANA SLUG and SHRIMP ornaments are now in my shop! they are very cute please look at them

[kazenorth]

The Black Sea Hare🐰

Aplysia vaccaria is the largest gastropod in the world, the largest specimen having reached 39 inches in length!

[colorsoutofearth]

Lettuce sea slug (Elysia crispata)

Photo by Mac Stone

[typhlonectes]

A Sarcoglossan sea slug in the genus Thuridilla, off the coast of Lord Howe Island, Australia

photograph by Bruce Deagle | Inaturalist

[wikipediapictures]

Caloria indica

“Caloria indica, synonym: Phidiana indica, on purple sponge.” - via Wikimedia Commons