Conus muriculatus

(G. B. Sowerby I, 1833)

Small to moderately large, moderately solid to solid. Last whorl conical; outline variably convex above centre, straight below. Shoulder angulate, smooth to strongly tuberculate. Spire of low to moderate height, outline slightly concave to slightly convex. Sculpture of last whorl varies from smooth spiral ribs at base to strongly granulose spiral ribs on entire whorl; in form sugillatus sculpture weaker and restricted to base.

Ground colour white to greyish white, often suffused with bluish shades. In typical form, last whorl with a variably broad, yellowish brown spiral band on each side of centre; bands sometimes additionally tinged with olive. Distinctly and obsolety banded shells intergrade. Dashed and dotted or solid brown spiral lines extend from base to subshoulder area, varying in number and arrangement. Base, siphonal fasciole and basal part of columella dark bluish to brownish violet. Teleoconch sutural ramps with sparse to numerous brown radial markings, sometimes immaculate. Aperture violet at base; remaining area immaculate or external pattern visible within.

[Cone Collector's Guide: http://theconecollector.com/checklist/Pages/]

Hutchinson Shoal
off Northern Moreton Island

in coarse sand and coral rubble  on coral reef at 10 m
Collected 1998
45 mm

Gneerings
off Mooloolabah

by diver
25 mm
Collected 2000
courtesy S Grail

Gneerings
off Mooloolabah

by diver
40 mm
Collected 2000
courtesy S Grail