HELIX JEANNERETIA 49 



relationship between all of these sections and groups and the forms 

 which group around Thelidomus, Caracolus, Dentellaria, etc. 



H. MULTISTRIATA Deshayes. PL 10, figs. 88-92. 



Perforate, globose-conoid-depressed, thin, subtranslucent, brown- 

 ish-corneous with a brown supra-peripheral line ; surface shining, 

 slightly marked by irregular incremental lines, and by fine spiral 

 ridges, narrower than the interspaces ; spire conoidal, apex obtuse, 

 whorls 5J, slightly convex, gradually increasing, the last somewhat 

 dilated and gibbous behind the aperture, constricted behind the 

 peristome on the base, descending to the aperture above ; aperture 

 quite oblique, rounded lunar ; peristome narrowly reflexed, white, 

 with an elongated dentiform callus within the baso-columellar mar- 

 gin ; columella reflexed partly over the umbilicus. 



Alt. 12, diam. 17-19 mill. ;" alt. 10, diam. 14 mill. 



Cuba. 



H. multistriata DESK., Encyc. Metk. ii, p. 248. Lam., An. s. Vert., 

 ed. DESK., p. 102. PFEIFFFR, in Kuster's Conchyl. Cab. 1. 17, f. 13, 

 14 ; t. 17, f. 29, 30; Monogr. i, p. 134. ARANGO, Fauna Mai. Cub. 

 p. 78. H. circumtexta FER., Hist t. 27A, f. 4, 5, 6. H. vesica LEA, 

 Obs. i. p. 168, t. 19, f. 67. (H. bicincta Mke. Synops. ed. 2, p. 127, 

 and H. adjuncta Zgl. teste Pfeiffer.) 



H. pityonesica PFR. Mai. Bl'dt. 1854, p. 156 ; Monogr. iv, p. 272. 

 REEVE, Conch. Icon. f. 1438. 



This species is nearly allied to H. dermatina and H. wrighti. The 

 following form seems to me to be only a variety. 



Var. PITYONESICA Pfr. PL 10, fig. 94 ; pi. 32, fig. 60. 



Umbilicus open or closed ; form and sculpture as in the type ; 

 last whorl more deeply indented and constricted behind the periph- 

 ery than in the type, peristome white or slightly pinkish. 



Isle of Pines. 



The shell figured by Reeve (fig. 94) is a small form, with subcar- 

 inate periphery. 



H. WRIGHTI Gundlach. PL 10, figs. 97, 98. 



Imperforate [or perforate] trochiform, carinate, rather thin, 

 sculptured with numerous, close, elevated spiral ridges, about equal 

 to the interstices; scarcely shining, brown, with a rufous peripheral 

 line; spire conical, apex obtuse; whorls 5i, rather convex, the last 

 slightly descending anteriorly, carinate at the periphery, the cariiia 



