(>_> DAVKNPORT ACADEMY OF NATURAL SCIENCES. 



marked with salmon. However, the shells of A. caliginosa, so far as I 

 have seen, are generally heavier, the peristome is much thicker, and 

 the whorls more globose than A. depressa. I have a lot of the latter 

 from Havana, Cuba, which in form approach more nearly to caliginosa 

 than my Florida specimens. 



Truncatella pulchella Pfr. Tampa and Magill's Bays; East Florida, 

 Cunningham. 



Truncatella caribceensis Shy. Tampa Bay ; Manatee River. 



Truncatella bilabiata Pfr. Evans' plantation on Lost Man's River; 

 Key West; abundant at (Jtilla Island, Honduras. 



Truncatella subcylindrica Gray. Manatee River; Magill's Bay. 



Chondropoma dentatum Say. Key West; Evans' plantation. 



Helicina chrysocheila Binn. Sumpter and Volusia Counties, Cun- 

 ningham. I have one or two specimens of this found at Cedar Ham- 

 mock in Manatee County. 



Helicina orbiculata Say. Key West; Manatee County, several 

 localities; Evans' plantation. At the latter place, just on the borders 

 of the everglades, a short distance above Cape Sable, I found this shell 

 in great numbers, and varying greatly in color, ranging from pure 

 white, cream color, and yellow, to red and purple, ashy blue, green, 

 and beautifully variegated. Most of these were found living on the 

 ground about rotting logs, but quite a number were taken alive on the 

 trunks of cabbage and royal palms, in some cases as much as ten feet 

 from the ground. This is the only instance in which I found any of 

 the operculated land shells of Florida on trees. Helicina dysoni, a 

 closely related species, was generally found on the under side of the 

 leaves of Thrynax radiata at Utilla. 



Helicina subglobosa Poey. Cedar Keys, Mr. Henry Hemphill. A 

 few shells were found at Shaw's Point, at the mouth of the Manatee 

 River. 



Nerita versicolor Lam. Florida Keys. 



Nerita tessellata Cm. Florida Keys. 



Nerita pcloronta Lam. Florida Keys. 



Neritina reclivata Say. Ware's Creek; streams north of the Manatee 

 River; Tampa. Generally badly eroded. Fresh and brackish water. 



Neritina reclivata, var. pal nice Dall. Manatee River; one shell. 



Neritina pupa L. Tortugas, one shell; occasionally found here in 

 abundance. 



*Neritina virginea L. Florida Keys, William Bahrt. A large dark 

 form. 



Neritina viridis L. Tortugas. Several worn shells. 



Liotia muricata Reeve. Tortugas. 



Liotia cruentata Megerle. Tortugas Reefs, under stones at low 

 water. 



*Liotia tricarinata Stearns. Tampa, Stearns. 



