381 Dominican Fossils — Maury 217 



Pitaria planivieta Guppy 



Cytherea {Caliista) planivieta Guppy, Quart. Jour. Geol. Soc. London 



vol. 22, p. 292, pi. 18, fig. 3. 1S66. 

 Caliista planivieta Gabb, Trans, Amer. Phil. Soc, vol. 15, p. 250, 1873. 

 Cytherea planivieta Guppy, Quart. Jour Geol. Soc. London, vol. 32 



p. 531, 1876. 

 Pitaria {Lamellicoiicha) planivieta Dall, Trans. Wagner Inst. Sci., vol 



3, pt. 6, p. I26S, 1903. 



Guppy' s figure exaggerates the slight irregularity of the 

 concentric ribbing, — as he later wrote, the type was somewhat 

 distorted. Well preserved shells are polished with flat, close ribs 

 and very narrow, almost linear interspaces. Bowden is the type 

 locality. Dall has identified, somewhat doubtfully, imperfect 

 specimens from White Beach, near Osprey, Florida as this species. 



Localities. — (Exp'd' 16) Bluffs 2 and 3, Cercado de Mao; 

 Zone G, Rio Gurabo at Los Quemaclos ; Zone I, Rio Cana at 

 Caimito. 



Genus Antigona Schumacher 



Antigona iarqninia Dall 

 Plate 37, Figure 4 



Venus magnifica Gabb, Trans. Amer. Phil. Soc, vol. 15, p. 249' 



1873. Not of Sowerby 1853. 

 Cytherea, tarquinia Dall, Trans. Wagner Inst., vol. 3, pt. 6, p. 12741 



pi. 38, figs. 2, 2a, 1903. 

 Antigona tarquinia Dall, Bull. 90, U. S. Nat. Museum, p 147, 1915. 



Our shell resembles Dr. Dall's figures of A. tarquinia from 

 the Ballast Point silex beds ; but its posterior dorsal margin is 

 very much more sloping. More material may prove the Domini- 

 can shell to be of varietal rank. Length 36, altitude 33, semi- 

 diameter 10 mm. 



Locality. — (Exp'd '16) Zone H, Rio Cana at Caimito, 



Antigona ( Ventricola) Blandiana Gupp}^ 

 Plate 37, Figure 5 

 Venus Blandiana Guppy, Geol. Mag. London, p. 436, pi. 17, fig. 8, 

 1874 ; Quart. Jour. Geol. Soc. London, vol. 32, p. 530, 1876. 



