Calliotrochus marmoreus

Calliotrochus marmoreus
Drawing with three views of a shell of Calliotrochus marmoreus
Scientific classification
Kingdom:	Animalia
Phylum:	Mollusca
Class:	Gastropoda
Clade:	Vetigastropoda
Superfamily:	Trochoidea
Family:	Trochidae
Genus:	Calliotrochus
Species:	C. marmoreus
Binomial name
Calliotrochus marmoreus (Pease, 1861)
Synonyms[1]
Calliotrochus excellens Iredale, 1937 Calliotrochus normalis Iredale, 1937 Calliotrochus symbolicus Iredale, 1937 Calliotrochus symbolicus alter Iredale, 1937 Conotalopia marmorata (Pease, 1861) Fossarina hoffmeisteri Ladd, 1966 Fossarina (Minopa) hoffmeisteri Ladd, H.S. 1966 Gibbula (Calliotrochus) cummingae Kilburn, 1977 Gibbula cummingae Kilburn, 1977 Gibbula marmorea (Pease, 1861) Gibbula phasianella (Deshayes, 1863) Margarita marmorea Pease, 1861 (original description) Margarita ponsonbyi Preston, 1908 Margarita striatula (Garrett, 1857) Trochinella perconfusa Iredale, 1937 Trochus (Margarita) striatula Garrett, 1857 Trochus phasianellus (Deshayes, 1863) Trochus striatula Garrett, 1857 Turbo phasianellus Deshayes, 1863

Calliotrochus marmoreus is a species of sea snail, a marine gastropod mollusk in the family Trochidae, the top snails.^[1][2][3]

Description

The height of the shell attains 6 mm, its diameter also 6 mm. The small shell has a globose-turbinate shape and is narrowly perforate. It is thin, smooth, shining, marbled and mottled with various shades of olive, brown and pinkish, usually showing dots of white, or spiral lines of white and pink or brown articulated. The conical spire is short and has a minute, acute apex. The sutures are impressed. The about 5 whorls are rounded. The body whorl is large, convex below and indented around the narrow white umbilicus. The oblique aperture is rounded-oval, with a very thin layer of bluish iridescent nacre within. The outer, basal and columella margins are well curved, thin, simple, and converging and united across the parietal wall by a thin layer of callus

Distribution

This marine species occurs in the following locations:^[1]

• Red Sea
• tropical Indo-Pacific
• Hawaii
• Queensland, Australia

References

• Pease, W.H. 1861. Descriptions of 47 new species of shells from the Sandwich Islands, in the collection of H. Cuming. Proceedings of the Zoological Society of London 1860: 431-438
• Garrett, A. 1857. On new species of marine shells of the Sandwich Islands. Proceedings of the California Academy of Sciences 1: 102-103
• Deshayes, G.P. 1863. Catalogue des Mollusques de l'Île de la Réunion (Bourbon). Annexe E in Maillard, L. (ed). Notes sur l'isle de La Réunion. Paris : Dentu
• Hedley, C. 1899. The Mollusca of Funafuti. Part 1. Gastropoda. Memoirs of the Australian Museum 3(7): 395-488
• Preston, H.B. 1908. Descriptions of new species of land, marine and freshwater shells from the Andaman Islands. Records of the Indian Museum 2(2): 187-210, pls 14-17
• Hedley, C. 1923. Studies on Australian Mollusca. Part XIV. Proceedings of the Linnean Society of New South Wales 48: 301-316, pls 30-33
• Iredale, T. 1937. Mollusca. 232-261, pls. 15-17 in Whitley, G.P. The Middleton and Elizabeth Reefs South Pacific Ocean. The Australian Zoologist 8: 232-261
• Ladd, H.S. 1966. Chitons and gastropods (Haliotidae through Adeorbidae) from the western Pacific Islands. United States Geological Survey Professional Papers 531: 1-98 16 pls
• Kilburn, R.N. 1977. Taxonomic studies on the marine Mollusca of southern Africa and Mozambique. Part 1. Annals of the Natal Museum 23(1): 173-214
• Kay, E.A. 1979. Hawaiian Marine Shells. Reef and shore fauna of Hawaii. Section 4 : Mollusca. Honolulu, Hawaii : Bishop Museum Press Bernice P. Bishop Museum Special Publication Vol. 64(4) 653 pp
• Herbert, D.G. 1998. Revision of the genus Calliotrochus Fischer, 1879 (Gastropoda: Trochoidea). Invertebrate Taxonomy 12: 545-565
• Dekker, H. & Orlin Z. 2000. Checklist of Red Sea Mollusca. Spirula 47(Supplement): 1-46

External links

• To World Register of Marine Species