622 APPENDIX. 



rostrum-like veil. Dr. Gray accordingly places the Terebridce 

 in the sub-order Toxifera. 



Genus CHRYSALLIDA, Carpenter. 



(Fam. PYRAMIDELLID.E.) 



Shell pupiform, generally cancellated; aperture contracted, 

 peristome continuous, thin ; columella with a plait, frequently 

 concealed. 



Ex. C. communis, C. B. Adams, pi. 137, fig. 6. 



This genus is founded upon certain species of Turbonilla, 

 having a distinct though hidden plait. 



Species of Chrysallida. 



clathratula, C. B. Adams. oblonga, Cpr. 



clausiliformis, Cpr. ovata, Cpr. 



communis, C. B. Adams. ovulum, Cpr. 



convexa, Cpr. Photis, Cpr. 



effusa, Cpr. Reigeni, Cpr. 



fasciata, Cpr. rotundata, Cpr. 



indentata, Cpr. telescopium, Cpr. 

 nodosa, Cpr 



Vol. i. p. 230. Genus TURBONILLA. 



Mr. P. P. Carpenter has also constituted a sub-genus of Tur- 

 bonilla to receive the species of that genus from Mazatlan, de- 

 scribed by him, which have the whorls rounded. 



Sub-gen. dunkerta, Carpenter. 



Shell with the whorls tumid, decussated. T. cancellata, in- 

 termedia, paucilirata, and subangulata, are examples. 



Vol. i. p. 239. Genus ENTOCONCHA, J. Miiller. 



We had considered that Entoconcha might be synonymous 

 with Stylifer, but from the description of the genus, which we 



