Cymatosyrinx arbela

Cymatosyrinx arbela
Original image of a shell of Cymatosyrinx arbela
Scientific classification
Kingdom:Animalia
Phylum:Mollusca
Class:Gastropoda
Clade:Caenogastropoda
Clade:Hypsogastropoda
Clade:Neogastropoda
Superfamily:Conoidea
Family:Drilliidae
Genus:Cymatosyrinx
Species: C. arbela
Binomial name
Cymatosyrinx arbela
(Dall, 1919)
Synonyms[1]

Elaeocyma arbela Dall, 1919

Cymatosyrinx arbela is a species of sea snail, a marine gastropod mollusk in the family Drilliidae.[1]

Description

The length of the shell attains 13.7 mm, its diameter 5 mm.

(Original description) The small, glistening shell is acute. Its color is brownish, with the projecting sculpture paler. The protoconch is dark brown, glassy, rather irregularly coiled and consists of one smooth whorl. It is followed by a peripherally keeled turn and about eight subsequent whorls. The suture is distinct, appressed, with a nodulose band in front of it where the ends of the ribs are cut off by a very narrow fasciolar constriction. The spiral sculpture consists of a few incised lines cutting only the interspaces between the ribs, on the spire. On the body whorl there are six or seven of these lines, with much wider interspaces, followed by three strong cords close-set on the siphonal canal. The axial sculpture consists of (on the body whorl about 13) protractively oblique whitish narrow ribs extending from the fasciole to the cords of the siphonal canal, with subequal interspaces and not continuous up the spire. The silky incrementatl lines are evident. The aperture is narrow. The anal sulcus is deep and rounded, with a strong subsutural callus. The outer lip is sharp-edged, with a feeble varix and a brown spot behind it. The inner lip and the columella shows a thick coat of white enamel, the throat not lirate. The siphonal canal is constricted, very short, deep, and slightly recurved.[2]

Distribution

This species occurs in the demersal zone of tropical Eastern Pacific Ocean; the holotype was found off Baja California, Mexico

References

  1. 1 2 Cymatosyrinx arbela (Dall, 1919).  Retrieved through: World Register of Marine Species on 5 April 2010.
  2. ↑ Dall (1919) Descriptions of new species of Mollusca from the North Pacific Ocean; Proceedings of the U.S. National Museum, vol. 56 (1920) (described as Elaeocyma arbela)
  • Tucker, J.K. 2004 Catalog of recent and fossil turrids (Mollusca: Gastropoda). Zootaxa 682:1-1295.

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