The John Murray Expedition-specimen was determined and described by Powell (1969: 396-397) as C. travancorica travancorica forma granulata. However this specimen differs from the latter variety (in accordance with both original and Schepman's (1913: 420) descriptions) in the absence of granules on the spiral ribs of the shell base and subsutural slope. The only character in common with the variety granulata. is the presence of weak spiral ribs on the subsutural slope. At the same time, these differences are taxonomically insignificant since the variety granulata, as it was mentioned by Powell, apparently does not warrant even a subspecific status and represents a form of intraspecific variability (this, in particular, makes superfluous the recognition of the nominotypical subspecies by Powell (1969: 396)).

Shell narrowly fusiform, of moderate size, 40 mm. in height, with a tall pagodaform spire and a long straight anterior canal. The spire-whorls, at about three-fourths whorl height, are sharply angulated and coronated by a thin lamella which is produced into somewhat irregular upward curved broad based spines. Above the carina the shoulder is concave but from the carina to the lower suture the outlines are straight but inclined inward below. The body-whorl tapers gradually to a long straight anterior canal. The shell surface is smooth except for weak spiral cords over the lower base and rostrum. The sinus is broad and rather deep, extending from the suture almost to the peripheral carina. Colour dull white under a thin greyish periostracum. Range—Off east India.

DISTRIBUTION. East Africa, India, Indonesia, 338-743 m.