12 BULTjETTN 181, UNITE© STATES NiATTOOSPAa:, MUSEUM 



Vereda del Burro in several stations on this path. It was also se- 

 cured in Paso de la Guana ja, in the Paso de las Escaleras, Paso de 

 los Paredones, and Paso de Lesca. In each of these passes series 

 of specimens were taken at various stations. 



This is the largest race of the group. It is unicolor and has the 

 umbilicus fairly open, not as wide, however, as in F. (F.) carna- 

 gueyanum m.ayapgi(ense. 



The type, U.S.N.M. No. 535893, comes from Los Corrales de los 

 Cangilones. It has 7.1 whorls and measures: Height, 27.4 mm.; 

 greater diameter, 14.5 mm. 



FARCIMEN (FARCIMEN) CAMAGUEYANUM FLORENCIANUM, new subspecies 



Plate 2, Figtjees 7-9 



This race was collected by Drs. Pilsbry and Welch on the cliffs 

 near Florencia, Camagiiey Province. The early whorls in this race 

 are a little darker than in the rest and the last one usually has the 

 purplish tinge of the two-colored forms, which is also the color 

 of the interior. The peristome is decidedly expanded, thickened, and 

 reflected at the junction of the columella and basal lip. It is quite 

 narrow on the parietal wall and leaves exposed a fairly large por- 

 tion of the umbilicus, thereby displaying the umbilical carina. 



The type, U.S.N.M. No. 535894, has 5.0 whorls remaining and 

 measures: Height, 21.3 mm.; greater diameter, 11.0 mm. 



FARCIMEN (FARCIMEN) WRIGHTI, new species 



Shell rather small, varying from elongate-ovate to ovate in out- 

 line. The color ranges from wax yellow through olive to orange, 

 and the shells may be unicolor or bicolor, that is, the last whorl may 

 be chestnut-brown. Nuclear whorls about 1.5, smooth. Postnuclear 

 whorls well rounded, marked by slender, exceedingly fine, closely 

 spaced, hairlike axial riblets. Suture strongly constricted. Periph- 

 ery well rounded. Base narrowly umbilicated, usually almost hid- 

 den by the reflected peristome. Aperture circular; peristome much 

 thickened and reflected on the outer, basal, and columellar portion, 

 much narrower on the parietal wall, where it is somewhat excavated. 

 The broadly expanded portion of the peristome is always sharp and 

 knife-edged at the extreme posterior edge of the reflected part. The 

 peristome of the inner lip touches the preceding turn in F. (F.) 

 wrighti hiayaense and F. (F.) wrighti lurighti and almost so in the 

 other two subspecies. 



This species ranges through the southern and eastern complex of 

 the Sierras de Guaicanamar and Najaza to Sibanicu to the Lomas 

 de Borje and Santa Cruz, south and east of the Rio Maximo in the 

 Province of Santa Clara. 



