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Crassispira maura
	Apertural view of a shell of Crassispira maura
Scientific classification
Kingdom:	Animalia
Phylum:	Mollusca
Class:	Gastropoda
Subclass:	Caenogastropoda
Order:	Neogastropoda
Superfamily:	Conoidea
Family:	Pseudomelatomidae
Genus:	Crassispira
Species:	C. maura
Binomial name
	Crassispira maura; (Sowerby I, 1834)
Synonyms
	Crassispira inaequistriataLi, 1930; Crassispira nigricansDall, 1919; Crassispira perlaSmith, 1947; Knefastia nigricans(Dall, W.H., 1919); Pleurotoma mauraSowerby I, 1834 (original combination);

Crassispira maura

Last updated November 12, 2025

Crassispira maura, common name the dark-coloured pleurotoma, is a species of sea snail, a marine gastropod mollusk in the family Pseudomelatomidae.^[1]

Description

The length of the shell varies between 45 mm and 85 mm.

The turreted shell is acuminated and blackish brown. The whorls are tuberculated in the middle, dotted round the lower part, whilst the upper part exhibits a depression from the rilling up of the sinus. The siphonal canal is recurved.^[2]

Distribution

This marine species occurs from Mazatlan, Mexico to Ecuador

References

1 2 Crassispira maura (Sowerby I, 1834) . Retrieved through: World Register of Marine Species on 4 April 2010.
↑ Conchologia iconica, or, Illustrations of the shells of molluscous animals; Reeve, Lovell, Brooks, Vincent, Reeve, Frederic, Sowerby, G. B.I (George Brettingham), Taylor, John Edward, Reeve Benham & Reeve, Savill, Edwards and Co., Spottiswoode & Co. Vincent Brooks, Day & Son; vol.1 (1843) This article incorporates text from this source, which is in the public domain .

G.B. Sowberby I. Proc. Geol. Soc., 1833, p. 137
Reeve, Conch. Syst., vol. ii. pi. 133. f. 4.

External links

Tucker, J.K. (2004). "Catalog of recent and fossil turrids (Mollusca: Gastropoda)" (PDF). Zootaxa. 682: 1–1295. doi:10.11646/zootaxa.682.1.1.
"Crassispira maura". Gastropods.com. Retrieved 16 January 2019.

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[WoRMS-1] 1 2 Crassispira maura (Sowerby I, 1834) . Retrieved through: World Register of Marine Species on 4 April 2010.

[2] Conchologia iconica, or, Illustrations of the shells of molluscous animals; Reeve, Lovell, Brooks, Vincent, Reeve, Frederic, Sowerby, G. B.I (George Brettingham), Taylor, John Edward, Reeve Benham & Reeve, Savill, Edwards and Co., Spottiswoode & Co. Vincent Brooks, Day & Son; vol.1 (1843) This article incorporates text from this source, which is in the public domain .

[1]

[2]

Crassispira maura

Apertural view of a shell of Crassispira maura
Scientific classification
Kingdom:	Animalia
Phylum:	Mollusca
Class:	Gastropoda
Subclass:	Caenogastropoda
Order:	Neogastropoda
Superfamily:	Conoidea
Family:	Pseudomelatomidae
Genus:	Crassispira
Species:	C. maura
Binomial name
*Crassispira maura* (Sowerby I, 1834)
Synonyms ^[1]
Crassispira inaequistriataLi, 1930 Crassispira nigricansDall, 1919 Crassispira perlaSmith, 1947 Knefastia nigricans(Dall, W.H., 1919) Pleurotoma mauraSowerby I, 1834 (original combination)