215 Dominican Fossils — Maury 51 



Jamaica; (3) T. albida virgo (fig. 6); (4) T. albida tellea 

 (fig- 7); (s) ^ albida antillarum (fig. 8). 



This species ranges from the Vicksburg Oligocene to the 

 recent. It occurs as a fossil, at Bowden, Cumana, Gatun and 

 elsewhere. 



Localities. — (Exp'd '16) Bluffs 1 (abundant), 2 and 3, 

 Cercado de Mao; Zones A,B,E,F, Rio Gurabo at LosQuemados; 

 Zone I, Rio Cana at Caimito; between Hato Viejo and Potrero, 

 Rio Amina. Varietal forms: T. albida tellea, Zone A, Rio Gur- 

 abo; T. albida virgo, Zone I, Rio Cana; T. albida antillarum, 

 Zones A, B, Rio Gurabo; Bluff 1, Cercado de Mao. 



Genus Borsonia Bellardi 



Borsonia varicosa Sowerby 

 Plate 8, Figure 9 



Cordiera varicosa Sowerby fide Gabb, Trans. Amer. Phil. Soc, vol, 

 15, p. 210, 1873. 



Our specimen was collected by Gabb in Santo Domingo. It 

 has the biplicate columella and characteristic notch of Borsonia. 

 The present members of this genus are living in the abyssal 

 zone of the Antilles. 



Genus Drillia Gray 



Drillia fusiformis Gabb 

 Plate 8, Figures 10, 11 



Derfancia fusiformis Gabb, Trans. Amer. Phil. Soc., vol. 15, p. 209, 



1873- 

 Drillia {Crassispira) Henekeni Cossmann, Journ. de Conchyliologie, 

 vol. 61, pi. 3, figs. 10, 11, 1913. Not D. Henekeni Sowerby. 



The Gatun analogue of this shell is D. Zooki Brown and 

 Pilsbry. We have several *metatypes of the Dominican species. 



Locality. — (Exp'd '16) Zone B, Rio Gurabo at Los Que- 

 mados. 



