#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

[vintagewildlife]

A cone snail attacking another cone snail By: T. R. Beaven From: The Fascinating Secrets of Oceans & Islands 1972

[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 вершиной. Общая окраска раковины харонии— бежевая, с множеств­ом С-образных пятен и линий коричневого цвета. Спиральн��е 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

[strawlessandbraless]

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

📷 source: X

[ocean-dragon]

🤍💕 Dirona albolineata 💕🤍

[uncharismatic-fauna]

Slip on the Common Slipper Limpet

The common slipper limpet, also known as the boat shell or the fornicating slipper snail (Crepidula fornicata) is a species of sea snail native to the North American coast of the Atlantic Ocean. In addition, it has been introduced to the eastern coasts of Europe and parts of the Pacific Northwest and Japan. They can reside in a variety of habitats including bays, estuaries, island shores, and rocky intertidal zones; their maximum depth tolerance is 70m (229 ft).

Fornicating slipper snails are noted for their unique mating methods. Adults typically live stacked on top of each other, with up to 12 to 14 individuals in a group. The largest, and oldest adults are at the bottom of the stack, while the younger, smaller adults are at the top. C. fornicata is a sequential hermaphrodite; new adults are all male, and will change into females as they get older or if they become the oldest in a stack of all males.

Breeding can occur between Februrary and October, although the peak season is in May or June. Unlike other marine mollusks, which are broadcast spawners, the common slipper limpet utilizes internal fertilization. The male closest to the female at the bottom extends his penis under her shell and fertilize up to 11000 eggs. These eggs hatch after about 3-4 weeks, and the planktonic larvae are released into the water. These larvae take 4-5 weeks to develop into juveniles, at which point they settle either on bare rock or on top of an established limpet chain. If it settles in isolation, the young adult immediately changes into a female; if it settles on a chain, it remains a male. Adults can live on these chains for up to 6 years.

Adult boat shells are rather small, ranging in length from 20–50 mm (0.7-1.9 in). The shell is distinctly arched, with a flat underside that gives it a slipper-like appearance. The shell can be white, pink, or yellow with red or brown streaks; older adults are often covered in algal growth.

Conservation status: The common slipper limpet has not been evaluated by the IUCN. Although they are commonly harvested for food, populations are considered stable. Outside its native range, this species is considered invasive and harmful to other limpet snails.

If you like what I do, consider buying me a ko-fi!

Photos

Dr Keith Hiscock

Sytske Dijksen

[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!

[vintagewildlife]

A starfish eating a mussel, while whelks and sea urchins wait for the leftovers By: Douglas Faulkner From: The Fascinating Secrets of Oceans & Islands 1972

[colorsoutofearth]

Lettuce sea slug (Elysia crispata)

Photo by Mac Stone

[wikipediapictures]

Gasflame nudibranch