lANTHINA.— Plate III. 



Species 15. (Fig. 1.5rt and \5b, Mus. Cuming.) 

 Ianthina Smithi.e. lanth. testa depresso-ovaid, spird 

 brevi, anfractibm mbangustis, decmsatim striatia, vix 

 angulatu ; anfractiis ultim.i peripherid violaced, spird 

 ft circa columellam albidd ; columelld tmiie rcjkxd. 

 Smith's Ianthina. Shell depressly ovate, spire short, 

 whorls rather narrow, decussately striated, scarcely 

 angled ; periphery of the last whorl violet, spire and 

 around the columella whitish ; columella thinly re- 

 flected. 

 Hah. Glamorganshire, South Wales (left alive on the sands 

 near Penrice Castle) ; Mrs. Hill. 



Since our figure was drawn, from a shell in Mr. Cu- 

 ming's possession, unaccompanied with any information 

 as to its locality, I had the good fortune to have my at- 

 tention called to a small box in the cabinet of Mrs. New- 



man Smith, containing three undoubted specimens, with 

 the following well-authenticated memorandum of their 

 capture : — 



" About twenty-seven years since, Lady Mary Cole (then Lady M. 

 Talbot) picked up on the shore by Penrice Castle, two or three of thi' 

 Kelix janthina, but no more appeared there until three years ago, 

 when many were left on the sands alive. — M. Hill. 

 " LI andaff House, April Wth, 1829." 



The three specimens accompanying this memorandum, 

 especially characterized by the presence of a white band 

 round the columella, being identical with the one figured 

 from Mr. Cuming's collection, are unquestionably distinct 

 from any hitherto described species, and leave no doubt 

 in my mind as to their being a new and valuable addition 

 to the British Fauna. It is with much pleasure I dedicate 

 it to the assiduous conchologist Mrs. Newman Smith, 

 to whom I am indebted for its discovery. 



