THE CYCLOPHORID LADSTD MOLLUSKS OF ARffiKICA 13 



We are recognizing four subspecies, as follows : 



KEY TO THE SUBSPECIES OF FARCIMEN (FARCIMEN) WRIGHTI 



Peristome of inner lip almost touching the preceding turn. 



Shell ovate biayaense 



Shell elongate-ovate wrighti 



Peristome of inner lip not touching the preceding turn. 



Umbilical carina conspicuous . martianum 



Umbilical carina not conspicuous najazaense 



FARCIMEN (FARCIMEN) WRIGHTI BIAYAENSE, new subspecies 

 Plate 2, FiGtrBEs 1-3 



This subspecies comes from San Martin de Biaya, 15 miles south of 

 Marti, Camagiiey Province, It is a chubby race in which the early 

 whorls are pale olivaceous with the last one tending toward reddish. 

 The interior of the aperture is the color of the exterior of the last whorl. 

 Its chief distinction from the other members consists of the fact that 

 the rather broadly expanded inner lip extends up and almost touches 

 the preceding whorl, leaving a mere line of separation. In this char- 

 acter it agrees with F. (F.) wrighti ivrighti, from which it is readily 

 distinguished by its gibbose outline. The parietal wall of the peristome 

 is much narrower than the rest and almost suggests the peculiar lunate 

 aspect of /^. (F.) hituberculatum (Sowerby). 



The type, U.S.N.M. No. 535889, has 5.1 whorls remaining, the extreme 

 tip being lost, and measures: Height, 22.4 mm.; greater diameter, 

 13.4 mm. It was collected by Victor Kodriguez. 



FARCIMEN (FARCIMEN) WRIGHTI WRIGHTI, new subspecies 



Plate 2, Figures 22-24 



Bartsch collected this race in large numbers at Loma Santa Cruz, 

 near Senado, Camagiiey Province. We have it also from Loma de 

 Borje and between Puerto Principe and Tunas, where it was collected 

 by Wright. This subspecies agrees with F. (F.) torighti hiayaense in 

 the approximation of the expanded lip to the preceding turn. It is, 

 however, much slenderer than that race, and its color scheme is much 

 more inclined to bicolor, that is, the early turns wax yellow and the 

 last one purplish brown. 



The type, U.S.N.M. No. 535891, comes from Loma Santa Cruz. It 

 has 5.6 whorls remaining, having lost the extreme tip, and measures : 

 Height, 22.7 mm. ; greater diameter, 11.8 mm. 



Bartsch's field notes say that the animal of this subspecies is pale 

 pink, with numerous very small white dots on the back and sides. The 

 sole of the foot is a little deeper pink than the sides, and the tentacles 

 are coral-red. 



428349 — 42 2 



