MELVILL : MOLLUSCA OF S. CAROLINA AND FLORIDA. 171 



is a misnomer. This species does not range so far north as 

 Pennsylvania. 



157. L. tigerina, (L.) 



Very abundant, Key West. 



158. Loripes chrysostoma, (Meusch). 



Key West, South Florida. 



159. L. edentula, (L.) 



With the preceding. Probably both are forms of one 

 species. 



Fam. CRA SSA TEL LID yE. 



160. Cardita (Mytilicardia) Floridana, (Sowb.) 



Key West, South Florida. 



Fam. MYTILID^. 



161. Crenella glandula, (Totten). 



South Carolina. 



162. Modiola plicatula, (Lam.) 



Very abundant in Charlestown Harbour; also at Key 

 West. 



163. Mytilus cubitus, (Say). 



Key West, South Florida. 



164. Lithodomus candigerus, (Lam.) 



Key West, South Florida. 



[and another species: probably stramineus, (Dunker). 

 Fam. A VICULIDjE. 



165. Avicula ala-perdicis, (Reeve). 



166. A. Peruviana, (Reeve). 



Both species very abundant on Gorgoniae. 



167. Pinna muricata, (L.) 



Charleston Harbour, (fragmentary). 



