Oliva barbadensis

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Oliva barbadensis
Oliva barbadensis 001.jpg
Shell of Oliva barbadensis (holotype at the Smithsonian Institution)
Scientific classification OOjs UI icon edit-ltr.svg
Domain: Eukaryota
Kingdom: Animalia
Phylum: Mollusca
Class: Gastropoda
Subclass: Caenogastropoda
Order: Neogastropoda
Family: Olividae
Genus: Oliva
Species:
O. barbadensis
Binomial name
Oliva barbadensis
Petuch & Sargent, 1986 [1]

Oliva barbadensis is a species of sea snail, a marine gastropod mollusk in the family Olividae, the olives. [2]

Contents

Description

Original description: "Shell of medium size for subgenus, heavy, thickened, fusiform in shape, body somewhat inflated, wider at midsection than at shoulder; spire elevated, protracted; color yellow to yellow-tan, overlaid with variable amounts of fine brown triangles in a netted pattern; some specimens with large zig-zag areas of bright yellow; body whorl with two bands of darker brown zig-zags; spire whorls with tan-colored callus; shoulder and edge of suture with pale blue patches, corresponding to sutural scalloping pattern; protoconch large; interior of aperture white; columellar area white with 18 to 25 thin plicae.

Size: approximately 40 to 50 mm. in length.

Holotype: Length 50 mm, width 21 mm, trawled from 200 meters depth 

off St. James, Barbados Island, by research vessel. USNM 841427.

Discussion: Oliva barbadensis is closest to Oliva drangai from Tobago, but differs in being a larger, more inflated species, and by having a much darker and more elaborate color pattern." [3]

Holotype of Oliva barbadensis - apertural view Apertural view of Oliva barbadensis holotype.jpg
Holotype of Oliva barbadensis - apertural view
Dorsal view of O. barbadensis holotype Dorsal view of Oliva barbadensis holotype.jpg
Dorsal view of O. barbadensis holotype

Distribution

Locus typicus: off West coast of Barbados, Lesser Antilles: at 500 ft. depths.

"Endemic to Barbados, where it is common at 100 to 160 meters depth, off the west coast of the island." [4]

This marine species occurs off French Guiana.

Etymology

"Named for Barbados Island, West Indies, the type locality." [5]

Habitat

"This new species is one of the deepest-dwelling olives in the western Atlantic and is known only from deep water surrounding the Barbados seamount." [6] This carnivorous, scavenging Olive responds readily to baited traps.

References

  1. Petuch E.J. & Sargent D.M. (1986). Atlas of the living olive shells of the world. xv + 253 pp., 39 pls.. World Register of Marine Species, Retrieved 28 April 2010.
  2. Oliva barbadensis Petuch & Sargent, 1986 . Retrieved through: World Register of Marine Species  on 28 April 2010.
  3. Petuch & Sargent, 1986-Atlas of the living olive shells of the world, page 126: (Plate 20, Figures 19, 20, 21, 22) Publ: CERF
  4. Petuch & Sargent, 1986-Atlas of the living olive shells of the world, page 126: (Plate 20, Figures 19, 20, 21, 22) Publ: CERF
  5. Petuch & Sargent, 1986-Atlas of the living olive shells of the world, page 126: (Plate 20, Figures 19, 20, 21, 22) Publ: CERF
  6. Petuch & Sargent, 1986-Atlas of the living olive shells of the world, page 126: (Plate 20, Figures 19, 20, 21, 22) Publ: CERF