(49) 



Crosswicks and Pensauken creeks. Clark enumerates 86 

 species of invertebrates, mostly molluscs, and Lewis Wool- 

 man in his artesian well reports has added several others, as 

 has also Mr. C. W. Johnson,* who points out their identity 

 with the Ripley fauna of the Gulf region. Other remains 

 include sharks' teeth ; Foraminifera, of which 20 species are 

 recorded by Bagg ; f echinus and other spines ; Ostracoda ; 

 gavial (?) teeth : dinosaurian bones ; | etc. 



The exposure fronting on Raritan Bay near Cliffwood, N. 

 J., and forming a bluff some thirty feet high northwest of 

 Matawan creek, has been admirably described by Hollick,§ 

 who records obscure crustacean and molluscan remains, 

 from which Professor Whitfield identified eight species of 

 molluscs, and enumerates twenty-six species of plants, of 

 which ten were new. I have found some few molluscan re- 

 mains here, occurring in the ferruginous concretions picked 

 up on the beach, from which Professor Clark has identified 

 the following : Idonearca vulgaris Morton, Vcleda lintca 

 Conrad, Cardium sp., Turritclla vertebroidcs Morton and 

 one or two other species, new to the formation, not yet thor- 

 oughly studied. 



I have nothing to add to the details of the exposure. It is 

 capped with gravel and in places consists of regularl}'- alter- 

 nating beds of fine sand several inches thick and seams of 

 comminuted vegetable matter an inch or two in thickness 

 (^/. jd). These are replaced by alternating beds of clay 

 and sand with lignite, and sparingly with greensand. The 

 face of the bluff is almost entirely hidden as shown in ^l. 

 55, and while the majority of my plant remains have been 

 collected from dropped boulders of clay, all have come 

 from near the base of the exposure except the large cone 

 {^Sequoia sp.). These plant beds are some distance above 

 the base of the formation, however, and their preserva- 



*New Cretaceous Fossils from an Artesian Well-boring at Mount Laurel, 

 N.J. Proc. Phila. Acad. 1898: 461-464. 1898. 

 tU. S. Geol. Surv. Bull. 88, 1898. 

 t Ann. Rep. State Geol. N. J. 1896 : 248. 1S97. 

 § Trans. N. Y. Acad. Sci. 16: 124-136.//. 11-14. 1897. 



