138 Bulletin 29 303 



32, p. 519, 1876. 



Ampullina Guppyi Dall, Trans. Wagner Inst., Sci.,vol. 3, pt. 6, p> 

 1585, 1903- 



Closely allied to the Eocene A. jacksonensis Harris and to 

 the Gatun Lupia perovata Conrad. A. Guppyi occurs in Anguilla, 

 the San Fernando beds of Trinidad, and those of Bowdem The 

 genus is now limited to the Arctic seas. ♦ 



Localities. — (Exp'd '16) Bluffs 1 and 2, Cercado de Mao; 

 Zones H and I, Rio Cana at Caimito; Rio Cana gravels; Zone G, 

 Rio Gurabo at Los Quemados. 



Amauropsis Guppyi variety gurabensis, n. var. 

 Plate 23, Figure 20 



Shell imperforate, with a short, sharp spire and ventricose 

 body whorl; suture impressed; whorls eight, very markedly flat- 

 tened in front of the suture giving a decidedly shouldered aspect ; 

 aperture very large. Length 35.5, of spire 11. 5, of aperture 

 24 mm. Extreme forms are very unlike typical shells of A. 

 Guppyi but intergrade. The nearest ally is the smaller A. fiori- 

 dana Dall from the Tampa silex bed. 



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

 mados. 



Genus Sinum Bolten 



Sinum gatunense Toula 

 Plate 24, Figure 2 



Sigaretus (Lupia Conrad) gatunensis Toula, Jahrb. der K — K Geol- 

 Reichsanstalt Wien, vol. 58, p. 697, pi. 28, fig. 3, 1908. 



Our shells agree so well with Toula' s figure and description 

 of S. gahmense that they seem identical. They are also closely 

 related to the recent 6". perspectivum. Guppy's excentriaim seems 

 about intermediate between this and the following species and 

 differs from both in ornamentation. 



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

 mados; Bluff 3, Cercado de Mao. 



