This species is known only from the type specimen in the Indian Museum, hut the excellent figures of Annandale and Stewart (see synonomy) leave no doubt of the relationship of the species with navarchus. The chief differences from that species would appear to be the adpressed suture, which impinges upon the peripheral carina, the wide smooth shoulder concavity, the strong relatively sparse development of the protractively oblique peripheral nodules, the raised cords rather than incised spiral grooves of the base, and the conspicuous spiral fluting within the outer lip. An example of navarchus of comparable size with the type of profundorum was used for the above comparison.

Range: Deep water, off the Maldive Islands, Indian Ocean.