Biology:Vexillum xenium
| Vexillum xenium | |
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| Drawing of a shell of Vexillum xenium (holotype) | |
Scientific classification 
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| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Gastropoda |
| Subclass: | Caenogastropoda |
| Order: | Neogastropoda |
| Superfamily: | Turbinelloidea |
| Family: | Costellariidae |
| Genus: | Vexillum |
| Species: | V. xenium
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| Binomial name | |
| Vexillum xenium Pilsbry, 1921
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| Synonyms | |
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Vexillum (Costellaria) xenium Pilsbry, 1921 | |
Vexillum xenium 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 18 mm and 27 mm, the aperture 8.4 mm.
(Original description) The shell is fusiform, containing ten whorls. It is white with a chestnut band traversed by several paler spiral lines, below the periphery, two or three paler interrupted lines above it on the summits of the ribs only, and a few widely spaced blackish-brown spots below the suture, on the ends of some of the ribs. The first three whorls are also deep brown.
The sculpture consists of smooth, longitudinal ribs, 22 on the body whorl, equal to their interstices, the latter marked with short impressions in spiral series, 6 on the penultimate whorl in each interval. The base is spirally grooved over ribs and intervals forming about 4 spiral series of tubercles. Two obliquely spiral cords are more prominent just above the siphonal fasciole. The aperture is shorter than the spire. The throat shows 9 thin beaded lirae. The columella has 5 thin plaits. [2]
Distribution
This marine species occurs off the Philippines .
References
- ↑ Vexillum xenium Pilsbry, 1921. Retrieved through: World Register of Marine Species on 24 April 2010.
- ↑ Pilsbry, H. A. (1921). Marine mollusks of Hawaii, VIII-XIII. Proceedings of the Academy of Natural Sciences of Philadelphia. 72: 296-328, pl. 12
This article incorporates text from this source, which is in the public domain.
- Salisbury R. & Wolff J. (2005) Three new mitriform gastropods from the western Indo-Pacific
External links
Wikidata ☰ Q7924213 entry
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