THE CYCLOPHOBID LAZSTD MOLLUSKS OF AMERICA 33 



stricted. Base moderately prolonged, bounded by a rounded carina 

 at the junction with the open umbilicus. Aperture almost circular; 

 peristome broadly expanded, thickened, and reflected, broadest on the 

 columellar wall where it is protracted, narrowest on the parietal wall ; 

 peristome is marked by concentric lines of gi'owth. Operculum typi- 

 cally f arcimenid. 



We are recognizing two subspecies, which the following key will 

 help to differentiate : 



KEY TO SUBSPECIES OF FARaMEN (FARCIMEN) VINALENSE 



Shell elongate vinalense 



Shell not elongate scopulorum 



FARCIMEN (FARCIMEN) VINALENSE VINALENSE, new subspecies 



Plate 7, Figxjres 4-6 



This subspecies ranges about the region of Vinales. We have it 

 from the Ensenada de los Bafios; the valley east of Baiios de San 

 Vicente; Cueva de las Delicias, Sierra de Vinales; the paredon of 

 the Puerta del Ancon; Sierra de la Chorrera and Hoyo de Jaruco. 

 It is a decidedly narrow race, of almost cylindric outline, with very 

 rounded whorls, which readily distinguish it from the more regu- 

 larly conic F. (F.) vinalense scopulormn. 



The type, U.S.N.M. No. 535929, comes from the Ensenada de los 

 Bahos. It has 8 whorls and measures: Height, 28.8 mm.; greater 

 diameter, 14.1 mm. 



FARCIMEN (FARCIMEN) VINALENSE SCOPULORUM, new subspecies 



Plate 7, Figukes 7-9 



We have this subspecies from the mogotes around Kilometer 14 

 between Pinar del Rio and Vinales, also from the mogotes adjacent 

 to the road between Viilales and the Puerta del Ancon, for example : 

 The Mogotes de la Vega, Capon, Coco Solo, Puertecitas, Truiillo, 

 Pahnarito, Zacarias, Dinamita, Eojas, Cuajani, Rinconada, and Vigil. 

 This race differs from typical F. (F.) vinalense vinalense in being 

 smaller, less elongated, more conic, and stouter and in having the 

 whorls slightly less rounded. 



The type, U.S.N.M. No. 535930, comes from the mogote on the 

 northeast side of the road at Kilometer 14, between Pinar del Rio and 

 Vinales. It has 8 whorls and measures: Height, 27.3 mm.; greater 

 diameter 14.4 mm. 



Dr. Joseph P. E. Morrison has dissected specimens of this sub- 

 species and has furnished us with the following description based 

 upon alcoholic material, No. 6674, collected by Bartsch on Mogote 

 de la Dinamita. 



