BAHAMA MOLLUSKS AND BRACHIOPODS. 2 ~> 



Tritonidea tincta Conrad. Tortugas; Great Bahama Bank. 



Nassa ambigua Mont. Tortugas. 



Columbella mercatoria Linn. Great Bahama Bank; Tor- 

 tugas. 



Columbella rusticoides Hei/prin. Great Bahama Bank; 

 Tortugas. 



This is the rustica of authors, not Lamarck. The original 

 ruslica is an Old-world species. 



Murex beaui F. & B. Sta. 42, off Sand Key, 15 fath. 

 Rare and interesting. 



Murex cabritii Bern. Sta. 44, off Key West, 5^ fath. 

 Hardly known in collections. 



Murex florifer Reeve. Bahia Honda, Cuba. 

 This is probably an exuberant form of M. rufus. 



Murex rufus Lam. Bahia Honda, Cuba. 



This is the Antillean form frequently listed as M. adustus, 

 but wholly distinct from the true adustus. 



Murex pomum Gmel. Bahia Honda, Cuba; Tortugas; Span- 

 ish Wells, Bahamas. 



Murex tristichus Da//. Sta. 60, Pourtales Plateau, 24 , 15 ' 

 N. Lat., 81 ° 20' W. Long., 130 fath. 

 The only specimen known except the original types. 



Murex nuttingi Da//. Pl.i, Fig. 1. Sta. 41, off Sand Key, 

 15 fath. 

 See description for details. 



Purpura patula Linn. Harbor Island, Bahamas. 

 Purpura deltoidea Lam. Egg Island, Bahamas; Logger- 

 head Key. Tortugas. 



Purpura bicostalis Lam. (=ha?mastoma var.) Bahia Honda, 

 Cuba. 



Purpura undata Zaw. {=hamastoma var.) Bahia Honda, 

 Cuba. 



