110 PINERIA. 



The dentition of the type species from the Isle of Pines is 

 unknown; and despite the similarity of aperture and sculp- 

 ture, there is some doubt about the relationship of the Pine- 

 rian species with those of the Caribbean islands. The former 

 may, perhaps, prove to be closely related to Microceramus in 

 dentition. The single species reported from the islands off 

 Venezuela (Buen Ayre) is probably a Microceramus. 



1. P. BEATHIANA Poey. PL 1, fig. 9. 



Shell imperf orate, cylindric-turrite, thin, corneous-brown; 

 sculptured with very oblique, narrow riblets, which are tvhite 

 or stippled with white. Spire slowly tapering from the last 

 whorl to the rather obtuse apex. First two whorls radially 

 ribbed, convex; several whorls following decidedly flattened 

 below the suture, very convex and almost angular; two or 

 three later whorls merely convex, the last rounded. Aperture 

 very oblique, ovate; peristome whitish, a little obtuse, hardly 

 expanded, the columellar margin blunt, not expanded, its in- 

 sertion remote from that of the outer lip ; columella concave. 

 Length 6.4-7, diam. 2.5 mm. ; whorls about 8. 



Isle of Pines: Sierra de Caballos (G. Beath). 



Pineria beathiana POEY, Memorias, i, p. 430, pi. 34, f . 17, 18 

 (1854). PFR., Monogr., vi, 343. ARANGO, Fauna, p. 87. 

 CROSSE, J. de C., 1890, p. 202. Bulimus beathianus Poey, 

 PFR., Malak. BL, 1854, p. 194 ; Monogr., iv, p. 494. 



Poey remarks that on the Caballos were found Trochatella 

 stellata, Pineria beathiana, Cyclostoma pupoides, and a smooth 

 wood-louse. On the mountain of Casas, only a league distant, 

 and of the same geological structure, there are four species 

 differing from these only in the greater development of orna- 

 mentation : Troch. constellata, P. terebra, Cycl. moreletianum, 

 and a similar but very spiny wood-louse. 



2. P. TEREBRA Poey. PL 1, figs. 3, 4. 



Shell imperf orate, turrite, thin; brown; sculptured with 

 narrow, oblique cuticular riblets. Spire regularly tapering 

 from the last whorl. First two whorls convex, the rest flat 

 above, convex and sloping inward below, the sutures very 



