Vexillum roseum

Vexillum roseum
	Vexillum roseum (specimen at the Smithsonian Institution)
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Mollusca
Class:	Gastropoda
Subclass:	Caenogastropoda
Order:	Neogastropoda
Family:	Costellariidae
Genus:	Vexillum
Species:	V. roseum
Binomial name
	Vexillum roseum; (Broderip, 1836)
Synonyms
	Mitra breviacaudata Sowerby, 1874; Tiara rosea Broderip, 1836 (original combination); Turricula (Costellaria) appellii Jickeli, 1874; Turricula (Costellaria} pharaonis A. Adams, 1872; Vexillum (Costellaria) roseum (Broderip, 1836) ·;

Vexillum roseum, common name the rose mitre, is a species of small sea snail, marine gastropod mollusk in the family Costellariidae, the ribbed miters.^[1]

Description

The length of the shell varies between 7 mm and 10.3 mm.

The shell is ovate, the spire turreted. The whorls are slightly angulated round the upper part. The shell is longitudinally ribbed, the ribs prickly noduled or tubercled at the angle, transversely strongly elevately striated. The shell is pinkish purple, banded with white, dotted with brown between the ribs. The columella is four-plaited.^[2]

The shell is purple-rose, tipped with white on the ribs; sometimes with a row of dark spots between the ribs and below the shoulder.^[3]

The shell is medium in size, slender, fusiform, solid. The whorls are slightly turreted. The suture is impressed. The aperture measures less than half the height of shell. The columella contains four plaits. The sculpture consists of strong, regularly spaced axial folds, overridden by closely set, flattened spiral ribs. ^[4]

Distribution

This marine species occurs in the Red Sea; off Mauritius; off the Philippines and Tahiti, the Tuamotu Islands and South Marutea, Lord Hood's Island.

Fossils have been found in Pleistocene strata on Eniwetok, Marshall Islands.

Habitat

Sometimes seen from dredgings, at depths around 80 meters.

References

^ Vexillum roseum (Broderip, 1836). Retrieved through: World Register of Marine Species on 24 April 2010.
^ Reeve, L. A. (1844-1845). Monograph of the genus Mitra. In: Conchologia Iconica, or, illustrations of the shells of molluscous animals, vol. 2, pl. 1-39 and unpaginated text. L. Reeve & Co., London. This article incorporates text from this source, which is in the public domain.
^ Tryon (1882), Manual of Conchology IV This article incorporates text from this source, which is in the public domain.
^ Ladd, H.S. (1977). Cenozoic fossil mollusks from western Pacific islands; Gastropods (Eratoidae through Harpidae). U.S. Geological Survey Professional Paper. 533: i–iv, 1–84, pls 1–23 This article incorporates text from this source, which is in the public domain.

Gori, S.; Rosado, J.; Salisbury, R. A. (2019). Costellariidae (Gastropoda) from Dhofar, Oman with descriptions of eight new species and notes on Vexillum appelii (Jickeli, 1874). Acta Conchyliorum. 18: 25-48.

[WoRMS-1] Vexillum roseum (Broderip, 1836). Retrieved through: World Register of Marine Species on 24 April 2010.

[2] Reeve, L. A. (1844-1845). Monograph of the genus Mitra. In: Conchologia Iconica, or, illustrations of the shells of molluscous animals, vol. 2, pl. 1-39 and unpaginated text. L. Reeve & Co., London. This article incorporates text from this source, which is in the public domain.

[3] Tryon (1882), Manual of Conchology IV This article incorporates text from this source, which is in the public domain.

[4] Ladd, H.S. (1977). Cenozoic fossil mollusks from western Pacific islands; Gastropods (Eratoidae through Harpidae). U.S. Geological Survey Professional Paper. 533: i–iv, 1–84, pls 1–23 This article incorporates text from this source, which is in the public domain.

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