366 PROCEEDINGS OF THE ACADEMY OF [PaRT II 



erately calloused laterally, the callouses dappled with rather small 

 dark spots; dorsal outline evenly arched, spire concealed. Outer 

 lip having 24 teeth. Inner lip with 20 short teeth, not running in- 

 ward as in C. cinerea. In the lower part of the columella an inner 

 series of 5 short teeth may be seen. 



Length 30.3, lateral diameter 18.7, dorso-ventral diam. 15 mm. 



It is less convex than C. cinerea, the posterior slope of the dorsal 

 outline less abrupt. Moreover, the markings of the lateral cal- 

 louses seem to be of a different character. The teeth are far less 

 numerous than in C. dominicensis. Named for Mr. John Campbell, 

 an enthusiastic student of the Cypraeidse. 



The type and three other specimens are no. 3000 A. N. S. P. 



Pustularia gabbiana (Guppy) 



Pustularia nucleus Linn., Gabb, Trans. Amer. Philos. Soc, xv, p. 236. Not 



Cypraea nucleus L. 

 Cypraea gabbiana Guppy, Q. J. Geol. Soc, xxxii, 1876, p. 528, pi. 29, fig. 10. 



While this species has a general resemblance to P. nucleus L., it 

 differs by the following characters: the raised transverse lines 

 which net the tubercles together are more numerous and conspic- 

 uous; the tubercles along the lateral margins are larger; the trans- 

 verse ridges of the base alternate in size, but the smaller ones ter- 

 minate at the margin of the aperture in teeth equal to those ter- 

 minating the larger ridges; the teeth of the columellar side do not 

 extend entirely within the aperture, but end on a sort of projecting 

 ledge, inward from which a latticed-granulose sculpture is seen. 

 Finally, the aperture curves more to the left at the upper end. 



Length 15.4 to 20.2 mm. 



STROMBIDAE. 



Strombus haitensis Sower by. 



Strombus haitensis Sowerby, Q. J- Geol. Soc, vi, 1849, p. 48, pi. 9, fig. 7. 

 Strombus bituberculatus Lam. in part, Gabb, Tr. Am. Philos. Soc. xv, p. 233. 



While this may be an ancestor of S. bituberculatus, there are con- 

 siderable differenceb. The spire is much higher, and the spiral 

 striation differs. 



strombus galliformis Pils. and Johns. Plate XXXI, figs, 1, 2. 



Proc. A. N. S. Phila., 1917, p. 170. 



Compare S. maoe^isis Maury, which may be the same. It has a 

 shorter spire, and the lip appears to be unknown. 



strombus dominator Pils. & Johns. PI. XXXII, figs. 1, 9. 



Proc. A. N. S. Phila., 1917, p. 171. 



