CUBAN ANNUDARIIDAE — TORRE AND BARTSCH 257 



KEY TO THE SUBSPECIES OF TUDORA (EUTUDOREX) TROSCHELI 



Axial and spiral sculpture feeble troscheli 



Axial and spiral sculpture not feeble. 



Axial ribs strongly scalloped azucarensia 



Axial ribs not strongly scalloped. 



Spiral threads of intercostal spaces strongly developed antoniensis 



Spiral threads of intercostal spaces poorly developed-- palmaritensis 



TUDORA (EUTUDOREX) TROSCHELI TROSCHELI (Pfciffer) 



Plate 24, Figure 3 



1864. Choanopoma troscheli Pfeiffer, Malakozool. Blatter, vol. 11, p. 103. 

 1867. Cyclostoma troscheli Arango, Repert fisico natural Isla de Cubana, p. 76. 

 1920. Tudora {Tudorops) troscheli Henderson and Bartsch, Proc. U. S. Nat. 

 Mus., vol. 58, p. 77. 



The typical subspecies appears to be confined to Cayos de San 

 Felipe, Pinar del Rio Province. It is differentiated from the others by 

 its larger size and by its feeble axial and spiral sculpture. 



A cotype, U.S.N.M. No. 356396, has 4 whorls remaining and meas- 

 ures: Length, 6.3 mm.; greater diameter, 4.2 mm.; lesser diameter, 

 3.1 mm. 



TUDORA (EUTUDOREX) TROSCHELI AZUCARENSIS, new subspecies 



Plate 24, Figure 4 



This race comes from Pan de Azucar, Pinar del Rio Province. It 

 is a very small race, with the axial ribs very strongly scalloped. In 

 size it resembles T. (E.) troscheli palmaritensis, from which, however, 

 it is easily distinguished by its strong sculpture. 



The type, U.S.N.M. No. 493427, has 3 whorls remaming and 

 measures: Length, 4.5 mm.; greater diameter, 2.7 mm.; lesser 

 diameter, 2.4 mm. 



TUDORA (EUTUDOREX) TROSCHELI ANTONIENSIS, new subspecies 



Plate 24, Figure 1 



This subspecies comes from Hoyo Largo de San Antonio, one of the 

 mogotes off the south side of the Sierra de San Andres, Pinar del Rio 

 Province. The spiral threads of tlie uitercostal spaces are very 

 strongly developed, in which respect it differs from T. (E.) troscheli 

 palmaritensis, from which it is also distmguished by its much larger 

 size. 



The type, U.S.N.M. No. 493429, has 3.1 whorls remaining and 

 measures: Length, 5.0 mm.; greater diameter, 3.5 mm.; lesser 

 diameter, 3.0 mm. 



