finely but strongly imbricated, and of which the alternate ones are 

 often much smaller: apex acute: spire with the outlines almost rec- 

 tilinear: whorls about seven, quite convex, with a rather deep suture : 

 aperture obovate: lip rather sharp, serrated by the sculpture; labi- 

 um with a moderate deposit : umbilicus slight. An old shell is sub 

 canaliculate. 



Mean divergence 55®; length of spire .26 inch; total length .47 

 inch ; breadth .27 inch. Of anotl>er specimen, mean divergence 

 65^^ ; length .46 inch ; breadth .3 inch. 



This species resembles Marex costellqris Lam., the Purpura cos- 

 iellaris of Reeve. 



CoNUS ARMiLLATUS. Shell obovatc-conic ; attenuated anteriorly : 

 white, with small orange brown square spots, which are more or less 

 confluent transversely, anteriorly and within the aperture of a pale 

 purple color, which is interrupted within by a white fascia below the 

 middle of the shell : solid, with fine revolving strise on the spire, and 

 on the last whorl with very regular spiral rather distant minute gran- 

 ulous elevated lines, v. hich, from the angle above nearly to the anteri- 

 or extremity, resemble fine strings of beads, but anteriorly are crowd- 

 ed, smaller, and are irregularly and feebly granulous : apex acute : 

 spire with the outlines a little concave : whorls nearly seven, not cor- 

 onated : aperture rather open. 



Mean divergence 90° ; length of spire .2 inch ; total length .59 

 inch ; breadth .32 inch. 



Triton parvus. Shell elongate, subfusiform : dingy white on the 

 spire with irregular pale brown stains, on the last whorl pale brown, 

 with two revolving whitish stripes of which the upper one is linear; 

 sometimes the shell is wholly brown except the lower fascia : with 

 longitudinal narrow rounded ribs, of which there are 10 or 12 

 on each whorl including the varices, which are not easily distinguish- 

 ed from the ribs, and which are distant a little more than a semi-revo- 

 lution ; with numerous spiral unequal elevated lines, which are con- 

 tinuous over the ribs, and of which the anterior ones are larger and 

 granose : apex acute : spire with slightly convex outlines : whorls 

 seven, convex, slightly more inflated r.bove the middle, with a well im- 

 pressed suture : aperture subelliptical, with a small well defined gut- 

 ter posteriorly : labrum crenulate within : labium a little thickened : 

 canal short, wide, a little recurved : with an umbilical indentation. 



Mean divergence So"'; length of spire .25 inch; total length .47 

 inch; breadth .21 inch. 



This species was described in Mss. five years since, but being in- 



