NASSA. 121 



hispida, A. Adams. subspinosa, Lam. 



horrida, Dkr. vibex, Sa//. 



muricata, Qiioi/ and Oaim. 



Sub-gen. zapuon, H. and A. Adams. 



Shell bucciniform ; spire elevated, whorls rugose ; inner lip 

 with a spreading, corrugated callus ; outer lip denticulate, lirate 

 internally, not variced externally. 



elegans, Reeve. 



Sub-gen. aciculina, H. and A, Adams. 



Shell turreted, polished, smooth or longitudinally plicate ; 

 inner lip with the callus sharp, straight, defined ; outer lip pro- 

 duced in the middle, variced externally. 



costata, ^1. Adams. macula ta, A. Adams. 



glabrata, A. Adams. vittata, A. Adams. 



labiata, A. Adams. 



Sub-gen. hima, Leach (Tritonia, Turton. Tritonella, A. Adams). 



Spire elevated, whorls cancellated; inner lip with a rugose 

 callus, callus defined ; outer lip with a marginal varix. 



ambigua, Pidt. fuscata, A. Adams. 



canescens, C. B. Adams. incrassata, Milll. 



collaria, Goidd. multigrauosa, Dhr. 



corpulenta, C. B. Adams. paupera, Goidd. 



costata, A. Adams. polygonata, Lam. 



decussata, Kien. pygmsea, Pult. 



dentifera, Powis. scabriuscula, Potvis. 



fasciata, Lam. tritoniformis, Kien. 



festiva, Potvis. varicifera, A. Adams. 



VOL. I. R 



