54 VARICELLA. 



The distribution of tihe species as above given (after 

 Arango) many include some varieties also. The only typical 

 acuticostata I have seen with exact locality are from Cerro 

 de Cabras. I do not know what forms occur at the other 

 pieces mentioned by Arango. 



la. Var. filipensis Pils., n. v. PL 15, fig. 4. 



Shell more lengthened than acuticostata, the whorls less 

 distinctly biangular ; ribs lower and more slender, with only 

 weak traces of spines or projections. There 1 'are 13 to 16 fine, 

 waved striaa in each intercostal space on the last whorl. Pale 

 brown- with ia -few broad dark brown streaks. Length 13.8, 

 diam. 3.6, aperture 4 mm. ; whorls 10. 



Los Cayos de San Filipe, in Pinar del Rio province. 



This variety is a transition to V. pichardi, from which it 

 differs in being more robust and dark-streaked. 



16. Var. horrida Pib., n. v. PL 15, figs. 2, 3. 



Ribs produced into inflated hollow spines at the shoulder, 

 longer than in acuticostata, and often broken ; on the base of 

 the shell the ribs are very weak or wanting. Interstitial re- 

 ticulation is sparse and open, the longitudinal striae few, 8 

 to 12 in each space, unequal and in part very weak. Light 

 brown, uniform or with some dark maculation. 



Length 12.8, diam. 4, aperture 4 mm. ; whorls 8%- 



Length 12.5, diam. 3.9, aperture 4 mm. ; whorls 8^/2. 



Pozas, prov. Pinar del Rio (Wright). 



2. V. PICHARDI (Arango). PL 15, fig. 9. 



Shell imperf orate, fusiform-subulajte, thin, brown- reddish, 

 longitudinally and transversely striate, and excepting the 

 first 3 whorls, having strong transverse ribs alternating with 

 some weaker ones. Spire long, the apex acute. Whorls 9, 

 slightly convex, the last one-fourth the total length, taper- 

 ing at base ; suture deep. Aperture sub rhombic-oval ; peris- 

 tome thin, unexpanded, the margins joined by a callus, right 

 margin arched forward, columellar margin somewhat straight- 

 ened. Length 12, diam. 3, aperture 2.75 mm. (Arango). 



Western Cuba: Guane and Paso Real, on stones (Arango). 



