Trochus nigropunctatus

Trochus nigropunctatus
Apertural view of a shell of Trochus nigropunctatus
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Mollusca
Class:	Gastropoda
Subclass:	Vetigastropoda
Order:	Trochida
Superfamily:	Trochoidea
Family:	Trochidae
Genus:	Trochus
Species:	T. nigropunctatus
Binomial name
Trochus nigropunctatus Reeve, 1861
Synonyms
Trochus (Infundibulum) nigropunctatusReeve, 1861 Trochus (Polydonta) nigropunctatusReeve, 1861 Trochus (Trochus) nigropunctatusReeve, 1861 Trochus engainusPhilippi Trochus hanleyanusKrauss, 1848 Trochus subviridisPhilippi, 1848 Trochus textilisReeve, 1861

Trochus nigropunctatus, common name the black-spotted topshell, is a species of sea snail, a marine gastropod mollusk in the family Trochidae, the top snails. ^[1]

Description

The shell is rather largely, excavately umbilicated, and shortly conical. Its color is ashgreen, obliquely flamed with black. The whorls are flatly convex, spirally very closely gemmed with regular grains. The base is grain-ridged. The interstices are crispately decussated with ridges dotted with black. The dots are conspicuous, distant.

The surface of this species is grained with unusual regularity, and the base is very characteristically sprinkled at rather distant intervals with blue-black dots. ^[2]

Distribution

This marine species occurs off Indo-Malaysia, Oceania, the Philippines, and Australia (Northern Territory, Queensland, Western Australia)

References

1. Trochus nigropunctatus Reeve, 1861 . Retrieved through: World Register of Marine Species  on 1 May 2010.
2. H. Pilsbry, Manual of Conchology XI, Academy of Natural Sciences, Philadelphia

• Reeve, L.A. 1842. New species of the genera Trochus and Turbo. Proceedings of the Zoological Society of London 1842: 184-186
• Reeve, L.A. 1842. Conchologia Systematica or Complete System of Conchology: in which the Lepades and Conchiferous Mollusca are described and classified according to their natural organization and habits. London : Longman, Brown, Green & Longmans Vol. 2 337 pp., pls 131–300.
• Lamarck, J.B. 1822. Histoire naturelle des Animaux sans Vertèbres. Paris : J.B. Lamarck Vol. 7 711 pp. (junior homonym of Trochus lineatusda Costa, 1778)
• Blainville, H.M.D. de 1828. Vers et Zoophytes. pp. 259-270 in Levrault, F.G. (ed.). Dictionnaire des Sciences Naturelles. Paris & Strassburg : Levrault Vol. 52
• Deshayes, G.P. 1843. Histoire naturelle des animaux sans vertèbres. Paris : J.B. Baillière Vol. 9 728 pp
• Adams, A. 1853. Contributions towards a monograph of the Trochidae, a family of gastropodous Mollusca. Proceedings of the Zoological Society of London 1851(19): 150-192
• Reeve, L.A. 1862. Monograph of the genus Trochus. pls 1–16 in Reeve, L.A. (ed). Conchologia Iconica. London : L. Reeve & Co. Vol. 13.
• Fischer, P. 1876. Genres Calcar, Trochus, Xenophora, Tectarius et Risella. pp. 97–114 in Keiner, L.C. (ed.). Spécies general et iconographie des coquilles vivantes. Paris : J.B. Baillière Vol. 11.
• Pilsbry, H.A. 1889. Manual of Conchology. Philadelphia : Academy of Natural Sciences Philadelphia Vol. 11 519 pp., pls 1-67.
• Hedley, C. 1916. A preliminary index of the Mollusca of Western Australia. Journal and Proceedings of the Royal Society of Western Australia 1: 152-226
• Hedley, C. 1918. Narrative of an expedition of exploration in North Western Australia by Herbert Basedow. Special Report. Mollusca. Transactions of the Royal Geographical Society of Australasia, South Australian Branch 18: 263-283
• Thiele, J. 1930. Gastropoda und Bivalvia. pp. 561–596 in Michaelsen, W. & Hartmayer, R. (eds). Die Fauna Südwest-Australiens. Jena : Gustav Fischer Vol. 5
• Allan, J.K. 1950. Australian Shells: with related animals living in the sea, in freshwater and on the land. Melbourne : Georgian House xix, 470 pp., 45 pls, 112 text figs.
• Wilson, B.R. & Gillett, K. 1971. Australian Shells: illustrating and describing 600 species of marine gastropods found in Australian waters. Sydney : Reed Books 168 pp
• Blackburn, H. & Green, J. 1976. Marine shells of the Darwin area. Darwin : Museums and Art Galleries Board of the Northern Territory pp. 1–23.
• Cernohorsky, W.O. 1978. Tropical Pacific marine shells. Sydney : Pacific Publications 352 pp., 68 pls.
• Wells, F.E. & Bryce, C.W. 1986. Seashells of Western Australia. Perth : Western Australian Museum 207 pp.
• Wilson, B. 1993. Australian Marine Shells. Prosobranch Gastropods. Kallaroo, Western Australia : Odyssey Publishing Vol. 1 408 pp.
• Wilson, B. 2002. A Handbook to Australian Seashells on Seashores East to West and North to South. Sydney : Reed New Holland 185 pp.

External links

• "Trochus nigropunctatus". Gastropods.com. Retrieved 16 January 2019.