FOSSIL CRETACEOUS SHELLS OF NEW JERSEY. 



61 



Appendix I. — On the Fossil Shells collected by Mr. Ltell 

 from the Cretaceous Formations of New Jersey. 



1. Description of New Species. By Professor Edward Forbes. 



Most of the fossil shells (amounting to sixty species) collected in 

 New Jersey during Mr. Lyell's excursion with Mr. Conrad have 

 been already described in Dr. Morton's excellent work. The fol- 

 lowing, however, are new species : — 



Ostrea subspatulata L. §• S. 



Interior of the Loicer Valve. 

 [ Two thirds the natural size.~\ . 



1. Ostrea subspatulata.* Lyell and Sowerby. Shell obovate ; 

 somewhat trapeziform ; generally thick ; higher than wide ; nar- 

 rower at the dorsal than at the ventral or basal end, which is 

 turned downwards at an obtuse angle ; somewhat foliaceous ex- 

 ternally; muscular impression placed very near the base. Lo- 

 cality, Lewis's Creek, South Washington, North Carolina. 



* Ostrea obovata, spatulata; valva inferiore, convex a, arcuata, postice cras- 

 sissima. ; superiore subdepressa. 



