ANCILLAllIA.— Plate XI. 



The little Ancillaria. Shell cylindiically ovate, 

 yellowish-white, very callous, shining, spire conical, 

 aperture small, trancated at the base, callously ridged 

 on the body-whorl, columella short, nearly straight. 



SowEKBY, Thes. Conch. Anc. p. 61. pi. 2U. f. 80, 81. 



Hah. ? 



A very callous little shell, having a ridge upon the 



body-whorl within the aperture. 



Species 51. (Fig- a, b, Mus. Cuming.) 

 Ancillaria tricolor. Aiic. iestd ovatd, 9nie)ite-spadi- 



ced, callosilate supra el infra avranl'io-fuscd, alio 

 marffiiiald, sjiird sulelevato-cunicd, anjraclihw ad basin 

 bisulcatis, columella arcualo-conlorld. 



The three-coloured Ancillaria. Shell ovate, shin- 

 ing fawn-colour, callosity above and below orange- 

 brown, edged with white, spire rather elevately co- 

 nical, whorls double-grooved at the base, columella 

 arcuately twisted. 



Gray, Sowerby, Thes. Conch. Anc. p. fi.S. pi. 211. f. 9, 10. 



Hab. ? 



The callous spire of this species is very prettily banded, 

 and the baud is also conspicuous at the base. 



