1887.] NATURAL SCIENCES OF PHILADELPHIA. 399 



Terehra curvilirata 



Triforis no v. sp. 



Cancellaria sp. ?~ 



Marginella sp. ? 



Pleurotoma nov. sp. 



Turbo eboreus 



Carinorbis (Delphinula) globulus 

 (D. hjra f Conrad) 



Natica hemicryjita 



Turritella Cumberlandia 



Turritella cequistriata 



Trochita centralis 



Crucibulum costahcm 



Crepidula fornicata 



Crepidiila plana f 



Fissurella Griscomi 



Discina (Orbieula) lugubris 

 Of the species here indicated the greater number have been 

 found in States other than New Jersey, and leave no doubt that the 

 deposits which they represent constitute a part of the regular Mio- 

 cene series of the Atlantic border. The general faunal facies is most 

 nearly that of the Lower Atlantic Miocene (" Marylaudian") or 

 Middle Atlantic Miocene ("Virginian"), with a decided leaning to- 

 ward the former, whose position it occupies geographically. I have 

 elsewhere (Proc. Acad. Nat. Sci. Phila., 1880 pp. 31-32 ; Contrib. 

 Tert. Geol. and Paleont. U. S., p. 9,) given reasons for referring these 

 Cumberland County deposits to the ' 'Marylaudian" division of the 

 Atlantic Miijcene, a reference which appears justified, apart from 

 other considerations, by the presence of such fossils as Ostrea per- 

 crassa, Pecten Humphreys ii, Perna maxillata, Crassateila melina, etc. 

 These species belong to the Lower Miocene (Contrib. Tert. Geol. and 

 Paleont. U. S., pp. 71 and 77), and characterize principally the basal 

 series of deposits. Indeed, it is a little questionable if they do not 

 actually connect with the Oligocene. 



The newer Miocene deposits, as determined by their fossil remains, 

 had not been recognized in the State prior to the present year, 

 although the existence of such deposits in their projDer position 

 could not reasonably be doubted. In my work above referred to 

 (1884) I remark (p. 9) : "It is very likely that both divisions of the 

 Miocene indicated by me as occurring in Maryland and Virginia, 



