SIMPSON — CONTRIBUTIONS TO THE MOLLUSCA OF FLORIDA. 51 



Fasciolaria distans Lam. West coast; common. Mr. Tryon makes 

 this a variety of F. tulipa. I have never found the connecting 'shells. 



Fasciolaria gigantea Keiner. West coast, and Keys. In the vicinity 

 of Tampa Bay, adult shells are seldom over a foot long. On the Keys, 

 I have seen dead shells two feet in length. The largest Gasteropod in 

 the world. 



Latirus infundibulum Gm. Tortugas. 



Latirus cayohuesonicus Sow. Jr. Tortugas. 



Leucozonia cingulifera Lam. West coast, rare; more common on 

 the Keys. 



Melongena corona Gm. West coast, and Keys. Very common and 

 variable. A small form, described by Sowerby in Proc. Zool. Soc, 

 London, is common on the Keys and southern end of the mainland. 



Melongena corona, var. bispinosa Phil. Abundant at Lostman's Point. 



Fulgur pyrum Dillw. West coast. 



Fulgur perversus L. West coast ; common. The shell is ordinarily 

 painted, when young, with brown, buff, and orange ; but fades into a 

 dirty white when full grown. I have a live shell, found at Long Key, 

 which measures fifteen and one-half inches in length. On this island I 

 found a beautiful, pure white variety, young shells sometimes having a 

 few black markings on the spire. Both species are found at Galveston, 

 on the Texas coast. 



Cantharus tincta Con. West coast, rare; common on the Florida 

 Keys. 



Cantharus tincta, var. antittarum Dkr. Key West ; Red-fish Point; 

 Tampa Bay. 



Cantharus coromandelianus I -am. Florida Keys. 



Cantharus parvum Ad. Tortugas. 



% Cantharus cancellaria Con. Cedar Keys. 



% Phos intricatus Dall. Key West. Received from Mr. Wm. H. Dall. 



Nassa vibex Say. West coast ; common. 



Nassa ambigua Mont. West coast, rare; Florida Keys, common. 



Nassa ambigua, var. conscnsa Rav. Dredged; Tampa Bay. 



Nassa ambigua, var. acuta Pult. Dredged ; Tampa BayT 



* Nassa obsoleta Say. Fernandina, Mr. Henry Hemphill ; east coast, 

 Cunningham. 



Vasum muricatum Born. Little Content Key; Key West. 

 Voluta junonia Chem. West coast. Rarely found in good condi- 

 tion, it being a deep-water shell. I have a specimen, in fairly good 

 condition, from Little Sarasota Pass. 



Mitra barbadensis Gm. Key West ; Tortugas reefs. Several very 

 large and fine specimens were found at the latter locality, under coral 

 rocks, at low tide. 



Mitra hanleyi Dohrn. Tortugas. 



