138 CRETACEOUS PALEONTOLOGY. 



FAUNA OF THE RED BANK SAND. 



The fauna of the Red Bank sand is known chiefly from the 

 lower, black, clayey layers of the formation. These beds con- 

 tain an assemblage of species quite different in character from 

 the Mount Laurel-Navesink fauna, being in the main a recur- 

 rence of the faunas from the formations below the Mount Laurel. 

 Fossils are scarce and poorly preserved in the typical, upper, 

 red-sand division of the formation, and have rarely been ob- 

 served. The four localities which have afforded fossils during 

 the recent operations of the Survey, are all at no great distance 

 from the town of Red Bank, and the three showing the best rep- 

 resentation of the fauna are all from the lower, black, sandy- 

 clay division of the formation. 



Locality up. The Red Bank sand is well exposed upon both 

 shores of the Shrewsbury River in the vicinity of Red Bank, the 

 beds for the most part being a black, clayey sand, with more or 

 less glauconite. The locality under consideration here is upon the 

 north shore of the river, just east of Guyon's Point, about 2 miles 

 from the railroad station at Red Bank. The following species 

 have been identified in the fauna from this place : 



PELECYPODA. 



Nucula whit-field n. sp. 

 Perrisonota pro text a Con. 

 Nemo don eufatulensis (Gabb). 

 Cucullaea tippana Con.? 

 Ostrea phtmosa Mort. ? 

 Ostrea mesenterica Mort. 

 Grypkctea convex Mort. 

 Hxogyra cost at a Say. 

 Trigonia kummeli n. sp. 

 Pec ten vemistus Mort. 

 Lima, reticulata (L. & F.). 

 Liopistha protexta Con. 

 Cuspidaria ventricosa M. & H. 

 Veniella conradi Mort. 



