190 AMERICAN JOURNAL 



Helicina Jiumilis. Ascending higher, we find H. dentiens, H. 

 hadia^ H. JosepMnce^ H. nigrescens, Ampkihulina patula, B. lati- 

 cmctuSj and Helicina epistilia. Excepting the last one, these 

 species are found everywhere above 300 or 400 feet of elevation. 

 The dense and excessively humid forests which cover all the 

 higher parts of the island afford a congenial habitat to the land- 

 snails. An ascent of Mount Kuliabon, 3000 feet high, furnished 

 me with examples of the four Helices already mentioned, — Hya- 

 lina Baudoni, Amphihulina pardalina^ Oyclotus amethystinus, 

 and G-landina perlucens. On Morne Diablotin, at the north end 

 of the island, I found Hyalina Bmidoni, the four Helices, Helicina 

 rhodostoma, H. conuloides, H plicatida, H. velutina, AmpJiihu- 

 lina pardalina, Cyclotus amethystinus, and Glandina perlucens. 

 On the very summit of this mountain, stated to be 5314 feet high, 

 I collected Helix hadia, H. Josephince, and Helicina conuloides. 

 Amphibuli7ia pardalina is another species fond of the thickly 

 wooded heights ; but several of the mollusca (e. g. Helicina 

 rhodostoma and Cyclotus amethystinus) appeared to cease at 

 about 3300 feet." 



1. CxcLOPHORUS (Cyclotus) amethystinus, Guppy. Ann. 



and Mag., 1868. 



Guppy describes this as a Cyclotus, but unquestionably it must 

 be referred to Cyclophorus, considering the character of the 

 operculum, which he says is ''horny, diaphanous." He remarks : 

 " This is a notable species, owing to its operculum, which departs 

 widely from that usual in this genus (Cyclotus). In no specimen 

 did it present the least approach to the shelly consistency of the 

 opercula of most Cycloti." 



2. Helicina plicatula, Pfeiffer. 

 Also in Martinique. 



3. Helicina epistilia, Guppy. Ann. and Mag., 1. c. 



4. Helicina humilis, Guppy. Ann. and Mag., 1. c. 



The pubescence in this is much the same as in H. velutina, and 

 both are allied to H Antillarum rather than to H. suhfusca. 



5. Helicina velutina, Guppy. Ann. and Mag., 1. c. 



6. Helicina rhodostoma, Gray. 

 Also in Guadeloupe. 



7. Helicina conuloides, Guppy. Ann. and Mag., 1. c. 



8. Hyalina Baudoni, Petit. 



