HELIX CYSTICOPSIS. 13 



The shell is fragile and Vitrina-shaped, like the next species, 

 but pemphigodes is darker colored and more roughly sculptured. 



I do not know whether the unfigured H. prominula of Pfeiffer, 

 (Monographic, v, p. 264, and Malak. Bl. 1858, p. 181) from Cabo 

 Cruz, Cuba, is the same as this species or not. I am inclined to 

 believe it a synonym. Arango retains it separate, but apparently 

 derives his information wholly from Pfeiffer. (Vide Fauna Mai. 

 Cubana, p. 69.) 



H. LESCAILLEI Gundlach. PI. 31, fig. 8. 



Imperforate, depressed-conoidal, very fragile, translucent, whitish, 

 covered with an extremely thin cuticle slightly tinged with green ; 

 very subtly obliquely striated; spire conoidal, apex minute, acute, red- 

 lipped ; whorls 4, slightly convex, rapidly widening, the last sub- 

 angulate at the periphery; aperture large, rotund-lunate, oblique; 

 peristome acute, margins somewhat converging, right margin cur- 

 ved in every part, columellar margin arcuate, nearly vertically in- 

 serted, thin, simple, not reflexed. 



Alt. 11 diam. maj. 15, min. 12 mill. 



Guantanamo, Eastern Cuba. 



H. lescaillei GUNDL., in PFR., Malak. BL, 1859, p. 89 ; Mono- 

 graphia v, p. 56. ARANGO, Fauna Mai. Cubana, p. 64. 



Similar in form to H. pemphigodes, but thinner, smoother, and 

 almost invariably with a minute tip of red on the apex. 



H. LUZI Arango. 



Perforate, sub-turbinate, thin, closely rugulose-striate, trans- 

 parent, shining, pale corneous, marked with a supra-peripheral 

 white fascia ; spire short-conoidal, apex rather obtuse ; whorls 4, 

 slightly convex, rapidly increasing, the last rotund, sensibly des- 

 cending anteriorly ; aperture sub-diagonal, lunate-subcircular, 

 slightly pearly inside ; peristome simple, margins subconverging, 

 the right margin simple, acute, basal a little reflexed, at the inser- 

 tion dilated, reflexed, nearly covering the perforation. 



Alt. 8J, diam. maj. 15 , min. 13 mill. (Pfeiffer}. 



Tanatno, Cuba. 



H. luzi ARANGO mss. PFR. Malak. Bl. 1866, p. 58 and Monogr. 

 v, p. 232. ARANGO, Fauna Mai. Cub., p. 68. 



Not figured nor seen by me. Apparently allied to H. hjalmar- 

 soni Pfr. 



