l6o MELVILL : MOLLUSCA OF S. CAROLINA AND FLORIDA. 



L. ijifundibiilum (Gmel.), but is of a black-brown color 

 throughout. I did not find many specimens, and those 

 mostly in bad condition. 



Fam : VOLUTIDM. 



39. Marginella diaphana (Kien.) 



Common. Key West. 



40. M. conoidalis (Kien.) 



Common. Key West. 



40A. M. longivaricosa (Reeve) = guttata (Auct.) 

 Key West. 



41. VolvarJa lactea (Kien.) 



Common. Key West. 



Fam: COLUMBELLID.F. 



42. Coiumbella mercatoria (Lamk.) 



Very abundant at Key West, in many varieties. 



43. C. spongiarum (Duclos.) 



One specimen, Key West, on Gorgonia. 



44. C. (Anachis) avara (Say.) 



In countless myriads on the breakwater, Sullivan's 

 Lsland, Charleston Harbour. 



45. C. (Anachis) ostreicoia (Melvill MS. n. sp.) 



This species, which is still undescribed, is allied to 



C. jtign'caTis, but is smaller and very distinct. Found on 



oyster shells (O. rosfrata) at Appalachicok, Gulf of 



Mexico. 



Fam: CASSIDIDyF. 



46. Oniscia oniscus (L.) 



On the shore. Key West. 



Fam : DO LI ID ^. 



47. Dolium perdix (L.) 



Key West, but not common. 



