THE MERCHANTVILLE. 45 



Locality i.oi^. — In the northern portion of the Cretaceous area 

 O'f the State, the most extensive Merchantville fauna has been 

 collected from an exposure in a small ravine, tributary toi Cheese- 

 quake Creek. The head of this ravine is just north of the road 

 from Morristown to> Jacksonville, about .75 of a mile west of 

 Morristown and a little over 2 miles northwest of Matawan; it 

 is the most westerly and largest of three similar ravines along the 

 road west from Morristown, and the fossils were* collected just 

 below the road. At this locality two distinct beds are exposed, 

 there being a dark clay below (loa^), nearly or quite free from 

 glauconite, and a chocolate-brown, highly glauconitic clay-marl 

 bed above (loi^,). The fauna listed below was collected entirely 

 from the higher bed. 



Anthozoa. 



Micrahacia americana M. & H. 



ECHINODERMATA. 



Caiopygus pusiUus Clark. 



PEI/ECYPODA. 



Nucula whitHeldi n. sp. 

 CwcuUaea antrosa Mort. 

 Breviarca cuneata Gabb. 

 Nemoarca cretacea Con. 

 Axinea subaustralis d'Orb. 

 Inoceramus proximus Tuom. 

 Ostrea tecticosta Gabb. ? 

 Trigonia eufaulensis Gabb. 

 Pecten burlingtonensis Gabb. 

 Pecten argUlensis Con. 

 Pecten conradi Whitf. 

 Neithea quinquecostata (Sow.) 

 Lima reticulata L. & E. 

 Anomia argeniaria Mort. 

 Modiola monmouthensis n. sp. 

 Pholadomya occidentalis Mort. 



