(Fischer P., 1868)

Description (shell):
Shell similar to Colus gracilis , differing only in minor detail. Protoconch not swollen, its axis aligned with spire axis (C. jeffreysianus-drawing 2); whorls more tumid, spire slightly cyrtoconoid. Spiral striae stronger, less numerous (24-34 on last whorl), often forming fine reticulation with growth lines. Triangular area of last whorl lacking periostracum very much reduced or absent. Periostracum often rather hispid. Aperture like that of Colus gracilis ; outer lip arises at level of spiral stria 8 or 9 on last whorl, siphonal canal relatively longer, about 16-20 % of shell height (C. jeffreysianus-drawing).

Size:
Up to 50 x 25 mm.

Colour:
White, perhaps with bluish or pinkish tinge, periostracum light horn-coloured.

Animal:
Body similar to Colus gracilis ; cephalic tentacles longer, less flattened, with eyes nearer to the tip.

Habitat:
On soft substrata from 30-2000 m.

Distribution:
Distributed from Mediterranean to Norway and Iceland (Distr. C. jeffreysianus).

Kingdom Animalia
Phylum Mollusca
Class Gastropoda
Subclass Prosobranchia
Superorder Caenogastropoda
Order Neogastropoda
Family Buccinidae
Genus Colus
Species Colus jeffreysianus

Status in World Register of Marine Species

Accepted name: Colus jeffreysianus (Fischer P., 1868)

Scientific synonyms and common names

Fusus jeffreysianus Fischer P., 1868
Fusus propinquus Alder, 1848 non Fusus propinquus Goldfuss, 1843
Tritonium turritum Sars M., 1859
Fusus attenuatus Jeffreys, 1867 non Fusus attenuatus Philippi, 1847
Fusus pupula Fischer P., 1882
Neptunia jeffreysiana var. ventricosa Locard, 1896
Neptunia jeffreysiana var. minor Locard, 1896
Neptunia jeffreysiana var. elongata Locard, 1896
Neptunia jeffreysiana var. bicolor Locard, 1896
Neptunia jeffreysiana var. major Locard, 1896
Neptunia pupoidea Locard, 1897
Neptunia torra Locard, 1897
Fusus propinquus var. laevis Marshall, 1902
Fusus consimilis Marshall, 1902
Colus pertenuis Sykes, 1911
Siphonorbis marshalli Iredale, 1918
Buccinum gracile sensu auct. non da Costa, 1778
Fusus buccinatus sensu Jeffreys, 1867 non Lamarck, 1822

Graham, Alastair F.R.S., 1988. Molluscs: Prosobranch and Pyramidellid Gastropods. Synopses of the British fauna (NS), 2: 1-662.

Hayward, P.J., Wigham, G.D. & N. Yonow, 1990. Mollusca I: Polyplacophora, Scaphopoda, and Gastropoda. In: The Marine Fauna of the British Isles and North-West Europe. (ed. P.J. Hayward & J.S. Ryland). Clarendon Press, Oxford: 628-730.

Jeffreys, J.G., 1869. British conchology. Vol. V -258 pp. Van Voorst, London.

Poppe, G.T. & Y. Goto, 1991. European Seashells. Vol. I. 352 pp. Wiesbaden/Verlag Christa Hemmen.

Seaward, D.R., 1990. Distribution of the marine molluscs of north west Europe. Nature Conservancy Council.

You can continue searching for Colus jeffreysianus on one of these Web sites:

Fauna Europaea (animals) | IOPI (plants) | NCBI (genetic)

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