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True Tulip
Species

True Tulip

Fasciolaria tulipa, (Linnaeus, 1758)

marine

About True Tulip

Fasciolaria tulipa, common name the true tulip, is a species of large sea snail, a marine gastropod mollusk in the family Fasciolariidae. This fiercely predatory species occupies a wide geographic area within the Western Atlantic and is known, along with the other Fasciolariids, for the superficial resemblance their shells possess to a closed tulip flower.

Appearance

The tulip shell has a fusiform outline, with an overall smooth surface, and presents fine growth lines, and small denticles on the inner edge of its delicate outer lip. It is whitish to tan in color, with rows of darker brownish blotches of various sizes. Over the blotches are symmetrical rows of thin lines which spiral along the whorls of the shell, which are normally about 9 in number.

The shell of an adult tulip snail can be from 2.5” to 9.5” inches (6.4 – 24.1 cm) in length.

Habitat

Fasciolaria tulipa has one of the largest geographic distributions of any western Atlantic Fasciolariid inhabiting the North Carolina coast and further south and west to the Gulf coast of Texas, the West Indies (where they have been identified universally regardless of water depth or island) and northern Brazil (35°N to 4°N; 97.22°W to 51°W). This species resides in the benthic zones of bodies of water with a maximum reported depth of 73 meters and are commonly found in seagrass beds and sand flats in marine environments. They also tend to inhabit shallow waters like estuaries and inlets. Some geographic locations they are commonly found are in the Gulf of Mexico along the gulf coast of Florida and near the Florida Keys.

Diet

This snail eats bivalves and various other gastropods including the banded tulip Fasciolaria lilium, and the queen conch Eustrombus gigas. It is a major predator of the thorny oyster Spondylus americanus.

Reproduction

Fasciolaria tulipa reproduce internally via sexual reproduction. There are 5 observed reproductive cycles; rest, gametogenesis, mature, spawn, and post spawn. The rest stage is the period where little to no reproduction occurs. This stage allows for hatched larvae to begin growing and reach the mature stage. The next stage, gametogenesis, is the production and accumulation of mature gametes. This stage prepares for the mature and spawn stage. Both the mature and spawn stages are the time where reproduction is most active and eggs are being laid. The post spawn stage is a period where the eggs hatch and enter the larval stage. This process is repeated by returning to the rest stage after the larval stage has ended.

Where to see it

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