338 PROCEEDIis'GS OF THE NATIONAL MUSEUM vol. 85 



rones. The shells here are much larger than any we have seen else- 

 where, of flesh-color or pale buff ground color, with rather broad 

 interrupted spiral color bands. 



The type, U.S.N.M. no. 493040, comes from El Palenque. It has 

 a little more than 4 whorls remaining and measures: Length, 28.0 

 mm; greater diameter, 16.9 mm; lesser diameter, 13.5 mm. This 

 is an unusually large individual; in contrast to it we may cite the 

 average measurements of a series of specimens from El Palenque: 

 Number of whorls, 3.8; length, 24.2 mm; greater diameter, 15.6 mm; 

 lesser diameter, 11.4 mm. 



CHONDROPOMA (CHONDROPOMA) PICTUM MOCHENSE, new subspecies 



Plate 29, Figukb 3 



The shells that cluster about Ceiba Mocha, a few miles south of 

 El Palenque, resemble G. {€.) pictum celsum in coloration but are 

 much smaller and have the peristome much less thickened at the edge. 



The type, U.S.N.M. no. 493044, a complete specimen, has 6 whorls, 

 and measures: Length, 22.7 mm; greater diameter, 12.2 mm; lesser 

 diameter, 10.3 mm. A large series of specimens gives the following 

 average measurements: Length, 17.8 mm; greater diameter, 10.5 mm; 

 lesser diameter, 8.9 mm. 



CHONDROPOMA (CHONDROPOMA) PICTUM SAGRA (Orbigny) 



Plate 29, Fiqukb 5 



1842. Cyclostonia sagra Okbigny, in Sagra's Histoire physique, politique et 

 naturelle de I'lle de Cuba, vol. 1, p. 263, pi. 22, figs. 21, 23. 



Orbigny cites "environs de la Havana" as locality for his Cydo- 

 stama sagra. Our specimens from Cojimar, a little south of Habana, 

 appear to satisfy his description and figures. 



It is a small race, with the sculpture decidedly enfeebled, in which 

 respect it resembles C. {C.) pictmn anafense, from which it is dis- 

 tinguished by its smaller size. 



The specimen figured, U.S.N.M. no. 493083, has 3.3 whorls remain- 

 ing and measures : Length, 13.9 mm ; greater diameter, 8.0 mm ; lesser 

 diameter, 7.5 mm. 



CHONDROPOMA (CHONDROPOMA) PICTUM ARANGOI, new subspecies 



Plate 29, Figure 11 



This subspecies ranges through the Sitio Bonilla, Sitio Perdido, 

 Escalera de Jaruco, and Tapaste. 



It is a rather large pale-colored race that has the outer lip rather 

 flaringly expanded and reflected. The type. U.S.N.M. no. 499601, 



