THE CTCLOPHORID LAND M0LLUSK9 OF AMEiRIC'A 17 



and Las Damas near Guayos ; Finca El Silencio and Cortinas de Veloso, 

 Cantii; Loma Cariblanca, Fomento, Trinidad; and Loma Caja de 

 Agua, Tuinicu, Sancti Spiritus. 



This race is large like F. (F.) hituberculatwm gutierrezi^ which it re- 

 sembles in many ways but from which it differs by having the peri- 

 stome very much intensified and in having the axial riblets decidedly 

 reduced, almost obsolete on the last whorl. 



The type, U.S.N.M. No. 535907, was collected by Prof. Pedro Guitart 

 at Finca Pitajones, Trinidad. It has 4.6 whorls remaining and 

 measures : Height, 32.8 mm. ; greater diameter, 17.8 mm. 



FARCIMEN (FARCIMEN) SEMINUDUM (Poey) 



Shell varying very greatly in size in the different subspecies. The 

 shape is equally variable, ranging from elongate-turrited to ovate. 

 The early whorls are orange-red, or brownish tinted, or even flesh 

 colored. The last whorl is dark reddish brown with a purplish tinge. 

 Nuclear whorls about 1.5, small, well rounded, smooth. The post- 

 nuclear whorls range from well rounded to inflated. The axial sculp- 

 ture on the early whorls consists of quite regular and regularly spaced 

 riblets. On the last turn these may evanesce or become intensified and 

 irregular. Suture well constricted, rendered conspicuous by the slight 

 shoulder at the summit of the whorls. Periphery well rounded. Base 

 moderately openly umbilicated with a carina of varying strength limit- 

 ing the umbilicus on the outside. Aperture subcircular; peristome 

 greatly thickened and expanded on the outer, basal, and inner lip, 

 narrow on the parietal portion, thin and sharp at the posterior edge. 

 The peristome is somewhat protracted on the anterior columellar por- 

 tion. Operculum typically farcimenid. 



The species appears limited to Santa Clara Province, whence we are 

 recognizing six subspecies : 



KEY TO THE SUBSPECIES OF FARCIMEN (FARCIMEN) SEMINUDUM 



Last whorl almost smooth magister 



Last whorl not smooth. 

 Axial riblets very fine. 



Shell large, height more than 27 mm coUare 



Shell small, height less than 22 mm poeyi 



Axial riblets not very fine. 



Axial ribs of last whorl irregular. 



Shell ovate seminudum 



Shell elongate-ovate guitarti 



Axial ribs of last whorl not irregular leoni 



FARCIMEN (FARCIMEN) SEMINUDUM MAGISTER, new subspecies 



Plate 4, Figuees 19-21 



This subspecies comes from the mountains about Trinidad, S^-nta 

 Clara Province. We have it from Nacimiento del Kio Caballero 

 near Letran and from La Vigia, 



