by William Swainson

“ Shell slender, fawn coloured, unspotted, marked by slender crowded, transverse, convex ribs, the interstices deeply cancellated; inner lip wanting, outer lip crenately undulate; pillar 5 plaited.
It is highly probable that the Mitres, like some other carnivorous marine animals, seek their prey, and habitually reside, in the deep recesses of the ocean. Instances are recorded of individuals having been brought up from great depths; and notwithstanding the number of species, of which we already know near 150, very few are common. ”

“ This genus, in short, is now become too overloaded, even for the purposes of artificial arrangement: but we refrained from characterizing any other group than Conohelix, until we analized the remainder. Tiara appears to be the second, or sub-typical group. ”