63 



1628 Pyrula neritoidea 

 1628Z> Spirillus 



1629 coarctata, Nobis 



1630 tests, sinistrors^ 



1631 



STRUTHWLARIA. 



1632 Strutliiolaria nodulosa 



1633 inermis, Sowerbys' Genera of 



Shells 



1634 ohlita 



RAJVELLA, 



1635 Ranella gigantea 



1636 leucostoma, several specimens, one with 



its epidermis 



1636a var. ultimo anfractu tuber- 



culis seriebus duabus cincto 



1637 — Argus 



1638 Crumena. One specimen only has the 



orange red aperture mentioned by Lam. We 

 are strongly inclined to suspect that the others 

 form a distinct species : they are mai'ked 

 1638«. 



16385 : — Crumena. — Obs, Tlie two specimens 



bearing this number appear to be a distinct 

 variety of the last, in which the tubercles on 

 the varices are lengthened into spines ; it has 

 not the depressed appearance of R, spinosa. 



1639 spinosa; (a) var. spina superiore varicis 



dichotoma 



1640 bufonia, (aj var. ore fusco 



1641 verrucosa 



1642 granifera 



1643 bitubercularis 



1644 Gyrinus, Murex Gyrinus, Linn. Ranella 



raniua, Lam. 



1645 jjulchella 



