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The Trochidae, common name top-snails or top-shells, are a family of various sized sea snails, marine gastropod molluscs in the subclass Vetigastropoda. This family is commonly known as the top-snails because in many species the shell resembles a toy spinning top .
Clanculus puniceus, common names the strawberry top shell or purplish clanculus, is a species of small sea snail, a marine gastropod mollusk in the family Trochidae, the top shells. [ 1 ] Shell description
Trochus radiatus, common name the radiate top shell, is a species of sea snail, a marine gastropod mollusk in the family Trochidae, the top snails. [ 1 ] Description
Conus textile, the textile cone or the cloth of gold cone [3] is a venomous species of sea snail, a marine gastropod mollusk in the family Conidae, the cone snails, cone shells or cones. Textile cone snails live mostly in the Indian Ocean, along the eastern coast of Africa and around Australia.
Among the species of Discus in Europe and North America, Discus rotundatus is recognized by the alternating pattern of reddish brown spots, tight coiling of the whorls and broad and shallow umbilicus. The body of this gastropod is bluish black on the upperside, while the lower side is greyish white.
Calliostoma annulatum, also known as the purple-ring topsnail, blue-ring topsnail or jeweled topsnail, is a medium-sized sea snail with gills and an operculum. [1] This is a sublittoral marine gastropod mollusk in the family Calliostomatidae. This snail lives off of the Pacific coast of North America.
The front of the right side near the base of the tentacles is produced into a fleshy lobe. The right tentacle is free, with the eye-peduncle compressed, and bears a rudimentary eye. The left eye-peduncle is cylindrical, with a distinct eye, and furnished with an expansion or frontal lobe, which is folded on itself and fringed at its free margin.
Tonna perdix, common name the partridge tun, is a species of very large sea snail, a marine gastropod mollusc in the family Tonnidae, the tun shells. [ 1 ] Description