32 BULLETIN 181, UNITED STATES NATIONAL MUSEUM 



FARCIMEN (FARCIMEN) SUBVENTRICOSUM MULTISTRIATINUM, new subspecies 



Plate 6, Figubes 19^21 



This race appears to extend from Los Lagunitas, near tlie Sierra de 

 Galalon to San Jose and to certain of the mogotes of the San Diego 

 de los Baiios complex. It is easily differentiated from the others by 

 having rather strong regular axial riblets on all but the last whorl. 



The type, U.S.N.M. No. 535934, comes from Los Lagunitas. It has 

 6.2 whorls remaining and measures: Height, 31.5 mm.; greater diam- 

 eter, 15.8 mm. 



FARCIMEN (FARCIMEN) SUBVENTRICOSUM BALNEORUM, new subspecies 



Plate 6, Figtjees 10-12 



This race occupies the mogotes and mountainsides bordering the 

 Rio San Diego, north of San Diego de los Baiios, apparently on both 

 sides of the river. It is a smaller and slenderer race than F. (F.) sub- 

 ventricoswn mvUistriatinum. It also has the ribbing merely indicated. 



The type, U.S.N.M. No. 535935, comes from the Cueva de los Indios 

 on the east bank of the Hio San Diego. It has 8 whorls and measures : 

 Height, 28.2 mm. ; greater diameter, 12.8 mm. 



FARCIMEN (FARCIMEN) SUBVENTRICOSUM SUBVENTRICOSUM, new subspecies 

 Plate 6, Figxjbes 7-9 



This subspecies extends from Pan de Guajaibon westward through 

 the Organos Mountains to Vinales. It is a subventricose race wliose 

 whorls are narrowly shouldered at the summit and whose axial sculp- 

 ture is reduced to mere lines of growth. It somewhat suggests F. (F.) 

 ventricosum (Orbigny), but is easily distinguished from that species 

 by its less inflated form. It differs from the other subspecies by its 

 more inflated form and less strong sculpture. 



The type, U.S.N.M. No. 535933, comes from the northeast end of 

 Pan de Guajaibon. It has 6.5 whorls remaining and measures : Height, 

 30.3 mm. ; greater diameter, 15.7 mm. 



FARCIMEN (FARCIMEN) VINALENSE, new species 



Shell elongate-conic, varying materially in outline, unicolor, wax 

 colored or pale orange or with the last whorl much darker, even plum 

 colored; peristome white or pale yellow. Nuclear whorls two, well 

 rounded, smooth. The early postnuclear whorls are marked by slen- 

 der, rather feebly developed axial threads, which vary materially in 

 spacing in the two subspecies. The succeeding whorls are inflated, 

 strongly rounded and marked by less strong threads, which gradually 

 grow weaker and evanesce on the last whorl. Suture strongly con- 



