Common Name

"Bohol Cone"

Status

Regarded as a valid species.

Type Locality

Panglao, Bohol Island, Philippines

Distribution

Philippines, S. Vietnam, New Caledonia, N.W. Australia and N. Somalia

Maximum Reported Size

51 mm

Description

Moderately small to medium-sized, light to moderately solid. Last whorl conical to ventricosely conical; outline slightly convex, with almost straight right side and sigmoid left side. Shoulder carinate, with a moderately deep exhalent notch. Spire of moderate height to high, stepped; outline almost straight. Larval shell of about 3 whorls. First 5-8 postnuclear whorls tuberculate; tubercles continuing as axial costae below outer margins and costae still present in smooth whorls. Teleoconch sutural ramps concave, with radial threads. Last whorl with spiral ribs at base and below shoulder, and ribbons or ribs between; intervning grooves variably broad, axially striate, and sometimes with a fine additional spiral rib. Subadults with a more uniform surface sculpture.

Shell Morphometry

L	25-51 mm
RW	0.03-0.10 g/mm
RD	0.56-0.67
PMD	0.78-0.95
RSH	0.20-0.32

Habitat & Habits

Deep water (125-550 m).

Discussion

C. pagodus has a very similar colour pattern, but differs in the constricted basal third of its last whorl, strong spiral sculpture on its postnuclear surural ramps, and its concave spire outline; axial costae below outer margins of sutural are absent.

References

• Nemouria (23): p. 12, figs 20 & 21.