30 BULLETIN 181, UTSTITED STATES NATIONAL MUSEUM 



The type, U.S.N.M. No. 535921, which comes from San Jose, Rangel, 

 has 5.4 whorls remaining and measures: Height, 20.3 mm.; greater 

 diameter, 10.3 mm. 



FARCIMEN (FARCIMEN) MANI (Poey) 



Pl.\te 6, Figures 16-18 



1851. Cyclostoma mani Poey, Memorias sobre la historia natural de la Isla de 



Cuba, vol. 1, pi. 7, figs. 19^22. 

 1854. Megaloniastoma mani Poey, iUd., pp. 404-405. 



Shell moderately large, elongate-ovate, wax colored throughout, 

 or with the last whorl brownish or even purplish. Peristome pale 

 yellow. Nuclear whorls about 1.7, small, well rounded, smooth. Post- 

 nuclear whorls inflated, strongly rounded, and marked on the early 

 turns by closely spaced, slender axial riblets, which are as fine as 

 hairs. On the middle whorl these become quite reduced and on the 

 later ones obsolete. Suture rather strongly constricted. Periphery 

 well rounded. Base slightly protracted, narrowly umbilicated, with 

 an obsolete carina marking the outer edge of the umbilicus. Aperture 

 subcircular; peristome broadly expanded, particularly so on the inner 

 lip, where it is decidedly produced, a little narrower on the parietal 

 wall, where it is adnate to the preceding turn. 



The specimen described and figured, a topotype, U.S.N.M. No. 

 535925, was received from Poey. It has 7.3 whorls remainmg and 

 measures : Height, 26.1 mm.; greater diameter, 13.5 mm. 



This species comes from the general region of Rangel and the Santa 

 Cruz River, and extends northward to Rancho Lucas in the Mount 

 Guajaibon region. 



FARCIMEN (FARCIMEN) VENTRICOSUM (Orbigny) 



Plate 6, Figuees 13-15 



1842. Cyclostoma ventricosa Okbigny, in Sagra's Histoire physique, politique et 

 naturelle de I'lle de Cuba, vol. 1, p. 256, pi. 21, fig. 13. 



Shell ovate, decidedly inflated, pale orange. Nuclear whorls 1.5, 

 small, well rounded, smooth. The postnuclear whorls increase very 

 rapidly, inflated, strongly rounded and marked on the early whorls by 

 fine, almost hairlike, retractively curved axial riblets, which on the 

 first turn are very distantly spaced, while on the succeeding turns 

 they become decidedly closely approximated, being separated on the 

 second turn by spaces about as wide as the riblets. On the last three 

 turns they are obsolete or rather replaced by irregular and irregu- 

 larly distributed incremental lines. The summit of the whorls is 

 slightly narrowly shouldered, which renders the suture rather con- 



