6 BULLiETTN 181, UlSraTEiD STATES NlATTONlAL MUSlETJM 



FARCIMEN (FARCIMEN) PSEUDOTORTUM PSEUDOTORTUM, new subspecies 



Plate 1, Figuees 7-9 



This race comes from the ancient Cafetal Buena Vista, 18 miles 

 west-southwest of Bayamo, Oriente Province. The specimen that we 

 have figured is one collected by Gundlach and labeled M. tortum. It 

 is distinguished from the other two by its much larger size and the 

 ribbing of the early whorls, which is much more conspicuous and a little 

 more distantly spaced. 



The type. U.S.N.M. No. 104424, the specimen referred to above, has 

 7.5 whorls and measures : Height, 24.9 mm. ; greater diameter, 11.8 mm. 



FARCIMEN (FARCIMEN) PSEUDOTORTUM TURQUINOENSE, new subspecies 



Plate 1, Figubes 1-3 



This race comes from Pico Turquino, Sierra Maestra, Oriente 

 Province. It is easily distinguished from F. (F.) pseudotortum 

 'pseudotortum. by its small size, and from F. (F.) pseudotortum haya- 

 'mense by iis strong ribbing. 



The type, U.S.N.M. No. 535874, has 5.3 whorls remaining, the tip 

 being broken, and measures: Height, 19.3 mm.; greater diameter, 

 9.9 mm. 



FARCIMEN (FARCIMEN) PSEUDOTORTUM BAYAMENSE, new subspecies 



Plate 1, FiatnvEs 4-6 



This race was collected by Victor Rodriguez at the foot of Pan de 

 Aziicar, Sierra Maestra, southwest of Bayamo. It differs from the 

 other two forms in being much more rotund and much more openly 

 umbilicated and in having considerably finer sculpture. The peris- 

 tome is also more reflected at the junction of the basal lip and columella. 



The type, U.S.N.M. No. 535875, has 6.5 whorls and measures: 

 Height, 18.8 mm. ; greater diameter, 10.1 mm. 



FARCIMEN (FARCIMEN) YUNQUENSE, new species 



Plate 2, Figures 19-21 



Shell very small, pale orange, with the last part of the last whorl 

 behind the peristome usually red. Nuclear whorls 2, well rounded, 

 smooth. Postnuclear whorls strongly rounded, narrowly shouldered 

 at the summit and marked by slender, retractively curved axial riblets, 

 which are not equal in strength or regularly disposed. Suture strongly 

 constricted. Periphery well rounded. Base slightly protracted, 

 rather broadly openly umbilicated, and with an obscure angle at the 



