124 



NASSIN.E. 



however, differs from the former genus in the presence of a 

 recurved canal, and from the hatter in the eyes being 

 near the tips of the tentacles, and in the produced fore 

 part of the foot, which forms a prominent mentum. 



Species of Nassaria. 



acuminata, Reeve. 

 alba, Mart. 



bitubercularis, A . A dams. 

 carduus, Reeve. 

 egregia, Reeve. 



nassoides, Reeve, 

 uodicostata, A. Adams. 

 pagoda, Reeve. 

 suturalis, A. Adams. 

 varicifera, A. Adams. 



Genus CYLLENE, Gray. 



Operculum ovate, acute. 



Shell ovate ; spire short, acute, suture canaliculated ; 

 columella concave, smooth or finely grooved ; outer lip 

 with a slight sinus at the fore part, emarginate posteriorly, 

 grooved internally. 



EoB. C. lyrata, Lamarck., pi. 13, fig. 2. 



The animal of Cyllene is at present unknown, but most 

 probably it will be found more to resemble that of this 

 group than that of Dactylidce. ,• the presence of the chan- 

 nelled suture, however, would seem to indicate the exist- 

 ence of a mantle-filament, as in Daciylus; the notch at the 

 fore part of the outer lip reminds one of PJios, but the 

 general aspect of Cyllene is that of a little Volute. 



Species of Cyllene. 



concinna, Soland. 

 Grayi, Reeve. 



glabrata, A. Adams. 

 Guillaini, Petit. 



