CUBAN SUBFAMILY CHONDKOPOMIXAE TOERE AND BARTSCH 251 



the spots of the interrupted spiral bands very small and distantly 

 spaced. The spiral threads in the unbilicus are also much weaker. 



The type, U.S.N.M. no. 367902, has 4.5 whorls remaining and 

 measures: Length, 13.7 mm; greater diameter, 7.3 mm; lesser 

 diameter. 6.2 mm. 



TURRITHYRA (TURRITHYRA) HAMLINI CERROENSIS, new subspecies 

 PL\TE 13, FlGXTRE 6 



In this subspecies, which comes from a mogote removed only a 

 short distance from that occupied by T. {T.) hamlini hamlini^ the 

 interrupted spiral bands have the dots so broad and arranged in axial 

 series and confluent that the shells appear more axially streaked 

 than spirally banded. 



The type, U.S.N.M. no. 468731, has 4.8 whorls remaining and 

 measures: Length, 15.5 mm; greater diameter, 8.3 mm; lesser 

 diameter, 7.0 mm. 



TURRITHYRA (TURRITHYRA) HAMLINI HAMLINI (Arango) 



Plate 13, Figure 5 



3882. Chondropoma hamlini Abango, Proc. Acad. Nat. Sci. Philadelphia, vol. 34, 



p. 105. 

 3920. Chondroihyra {Chondrothyra) hamlini Hendeeson and Bartscii, Proc. 



U. S. Nat. Mus., vol. 58, p. 64. 



In this race, which comes from the Mogote Cabrera on the north 

 side of the road at Kilometer 14, between Pinar del Kio and Luis 

 Lazo, the interrupted spiral bands, while arranged in axial series, 

 do not fuse to form axial varicial streaks. 



The specimen figured, U.S.N.M. no. 492722, has 4.8 whorls remain- 

 ing and measures: Length, 15.4 mm; greater diameter, 8.8 mm; 

 lesser diameter, 6.8 mm. 



The animal is flesh-color, with a smoky suffusion. The faint pink- 

 ish flush shines through the forehead. The foot is medially cleft. 

 Locomotion of the two sides is alternate. 



TuRRiPOMA, new subgenus 



Those Turrithyras that have no breathing pore, whose peristomes 

 are narrow and uncut. 

 Type: Turritliyra {Turripoma) hermudezi, new species. 



TURRITHYRA (TURRIPOMA) BERMUDEZI, new species 



Plate 13, Figitre 2 



Shell elongate-turreted, pale brown, marked by axial zones of dark 

 brown. Nuclear whorls 2, rather large, decidedly inflated, strongly 



