Common Name

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Status

Regarded as a valid species.

Type Locality

Off Russell Island, Solomon Sea

Distribution

Solomon Is., N. Queensland, New Caledonia, Loyalty Is.

Maximum Reported Size

30 mm

Description

Small to moderately small, light to moderately light. Last whorl conical; outline almost straight; left side concave near base. Shoulder carinate. Spire or moderate height to high, outline concave. Larval shell of 3 or more whorls, maximum diameter about 0.9 mm. About first 4 postnucelar whorls tuberculate. Teleoconch sutural ramps concave, with 2-3 obsolete spiral striae in early and 3 increasing to 4-5 spiral grooves in late whorls. Last whorl with evenly spaced spiral grooves and ribbons between; elevations narrower below shoulder.

Ground colour white. Last whorl usually with spiral rows of yellowish brown dots. Spirally aligned brown blotches below shoulder, on both sides of centre and at base, forming 2 central spiral bands and a pale band below shoulder. Larval whorls white to light orange. Postnuclear sutural ramps with light brown radial blotches and regularly spaced darker brown spots at outer margins. Aperture white.

Periostracum brown, very thin, translucent, smooth.

Shell Morphometry

L	21-32 mm
RW	0.04-0.09 g/mm
RD	0.51-0.63
PMD	0.88-0.94
RSH	0.18-0.24

Habitat & Habits

Habitat & Habits In Solomon Is., in 100-150 m, in rubble and sand. In New Caledonia and Loyalty Is, in 120-390 m.

Discussion

This cone is often misidentified. Most specimens on internet are NOT this species. The similar C. memiae can be separated from can be distinguished by its broader (RD 0.62- 0.73) and often ventricose or pyriform last whorl, finer dots along the shoulder edge, and often pink ground colour. Shelld of co-occuring <>from Solomon Is. (Pl. 53, Fig. 7) also have less carinate shoulders. C. baileyi also resembles C. wakayamaensis.

References

• Conchiglia 11 (126-127): p. 9, with figures.