THE CYCLOPHORID LAND MOLLUSKS OF AMEKICIA 27 



he gives a description of the shell and cites the south coast of Cuba 

 as the home of the species. He also mentiones the ingenio (sugar 

 mill) of Don J. Poey near Alacranes as a source of some of his material. 



We believe that Poey's figures are not at all bad, that they repre- 

 sent quite well the species that occurs abundantly between Habana 

 and Matanzas. Many specimens distributed by Poey with the name 

 Megalomastoma apertum belong to this species and add additional 

 support to our conclusion. Also, Gundlach, in Pfeiffer (Malakozool. 

 Blatter, vol. 3, p. 122, 1856), describes the animal of Megalomastoma 

 apertum and cites therewith Loma de Camoa as the first definite lo- 

 cality for the species, which we shall consider the restricted type 

 designation. A translation of Gundlach's description of the animal 

 is as follows : 



Animal beautiful rose-red with coral-red antennae, small black 

 eyes on the outer bases of the short antennae. In moving about the 

 head is projected very slowly about two lines beyond the shell and 

 the shell is then rapidly drawn after it. The caudal portion does 

 not project beyond the operculum. 



FARCIMEN (FARCIMEN) GUNDLACHI (Pfeiffer) 



Medium-sized shells with the early whorls wax color or a little 

 dusky; the later turns considerably darker, in some cases even plum 

 colored. Nuclear whorls small, a little more than 2, well rovmded, 

 smooth. Postnuclear whorls inflated, rather strongly rounded, 

 marked by mere incremental lines or slender riblets, which vanish 

 on the middle of the turns and are most emphasized on the posterior 

 portion. There are faint indications of spiral hair lines. These 

 may be mere color markings. Suture moderately well constricted. 

 Periphery well rounded. Base protracted, openly umbilicated with a 

 strongly rounded carina marking the outer limit of the umbilicus. 

 Aperture almost circular; peristome broadly expanded and reflected 

 except on the inner lip, which is narrower and adnate to the preced- 

 ing turn. Operculum typically f arcimenid. 



The species is confined to the eastern end of Pinar del Rio and the 

 western part of Habana Provinces where three races are recognizable. 



KEY TO THE SUBSPECIES OF FARCIMEN (FARCIMEN) GUNDLACHI 



Axial riblets obsolete gundlachi 



Axial riblets not obsolete. 



Shell small, height less than 20 mm gundlachiellum 



Shell larger, height more than 22 mm anafense 



