1921] 



NATURAL SCIENCES OF PHILADELPHIA. 



415 



Cuspidaria gabbi Pils. and Johns. Plate XXXVIII, fig. 10. 



Pioc. A. N. S. Phila. 1917, p. 195. 



Very similar to C. islahispaniolce Maury, but the figure of that 

 shows a longer rostrum. 



CRASSATELLITIDAE. 



Crassatellites reevei (Gabb). 



Crassatella anUllarwn Reeve? (C reevei Gabb), Gabb, Trans. Amer. Philos. 



Soc, XV, 1873, p. 252. 

 Crassatellites reevei Gabb, Brown and Pilsbry, Proc. A. N. S. Phila. 1912, p. 



515, pi. 23, fig. 5. 



Type is no. 2687 A. N. S. P. 



Crassatellites (Crassinella) guppyi radiata n. subsp. Plate XXXVIII, flg. 4. 



The shell is similar to C. guppyi Dall in having narrow concentric 

 ribs (twelve in number in the type), and in having a distinct mi- 

 croscopic concentric striation over ribs and intervals, but it diffei's 

 from Bowden guppyi compared by having a fine, even radial stria- 

 tion, barely visible under a good hand lens, the striae impressed, 

 cutting the concentric striation and passing over ribs and intervals. 



Length 3.55, alt. 3.35, semidiam. 0.9 mm. 



Type no. 3994 A. N. S. P. 



Crassatellites (CrassineUa) microdelta Pils. and Johns. 

 Proc. A. N. S. Phila. 1917, p. 196. 



Text-flg. 40. 



Crassatellites (Crassinella) dolatus Pils. and Johns. 

 Proc. A. N. S. Phila. 1917, p. 196. 



Text-flg. 39. 



Fig. 39. Crassatellites dolatus. Fig. 40. 



Veneiicardia aversa Pils. and Johns. Plate XLV, flg. 10. 



Proc. A. N. S. Phila. 1917, p. 196. 



Venericardia santodomingensis Pils. and Johns. Plate XLV, flg. 14. 



Proc. A. N. S. Phila. 1917, p. 197. 



C. microdelta. 



