326 STUART WELLER 



of the most common forms, and has been seen elsewhere n New 

 Jersey only in the Wenonah sand. It seems to be indistinguish- 

 able from P. Unguiformis E. & S., from the West. 



7. Inoceramus sagensis Owen. Elsewhere in New Jersey this 

 species occurs most commonly in the Merchantvillle clay marl. 



8. Nemodon brevifrons Con. This species has been recogn'zed 

 elsewhere in the New Jersey faunas only in the Woodbury clay near 

 Haddonfield and in the same formation in Monmouth County. 



9. Breviarca sp. undet. This is probably an undescribed form; 

 it is closely allied to, if not identical with, a species occurring 

 in the Woodbury clay fauna of Monmouth County. 



10. Nucula slackiana Gabb. Specimens of this species in the Cliff- 

 wood fauna are indistinguishable from specimens from the 

 Woodbury clay. 



11. Nucula sp. undet. This species seems to be undescribed, but it is 

 identical with a form which occurs in the Wenonah sand fauna. 



12. Nuculana protexta (Gabb) ? Specimens which seem to be refer- 

 able to this species are rather common in the fauna. 



13. Nuculana sp. undet. The specimens here indicated are possibly 

 but a form of the last. 



14. Lucina cretacea Con. This species, which occurs so abundantly 

 in the Woodbury clay, is one of the rarest forms in the Cliffwood 

 fauna. 



15. Cardium ripleyanum Con.? Several specimens of a small 

 Cardium have been referred questionably to this species, they 

 being too imperfect for certain identification. 



16. Isocardia cliffwoodensis n. sp. (Figs. 1-3). This is one of the 

 most characteristic, though not the most common, species of 



Fig. i Fig. 2 Fig. 3 



the Cliffwood fauna, being present in every locality where the 

 fauna has been observed. A similar, if not identical, species 

 occurs in the Wenonah sand fauna. 



