52 PALEONTOLOGY OF NEW JERSEY, 



think are sufficient to waiTant tlie adoption of a distinct name. Mr. Conrad 

 originally considered the fossil forms as the same as the living- ones, and so 

 gives it in his Miocene fossils. But in his list of Miocene fossils given in 

 the Proceedings of the Academy of Natural Sciences, Philadelphia, for 1<S62, 

 he appears to drop the name Nucula Umatula and use that of Yoldia Icevis 

 instead, and is followed by Mr. F. B. Meek, in the Smithsonian Institution 

 check list, and I do not find any explanation of the change anywhere given, 

 so presume they had considered all the fossil forms as distinct from the N. 

 (Yoldia) limatitla as now existing, which I do not consider as coiTect. 



The species, as found in New Jersey, attain a length of rather more 

 than 1 inch and differs from the living ones only in the features above 

 mentioned. 



Localities: I have seen small specimens of it from near Jericho and 

 Shiloh, Cumberland County, N. J. The figuretl example, with some others, 

 are from the collectit)n of the Academy of Natural Sciences, Philadelphia, 

 and are contained in a greenish-gray marl, resembling that frcmi near Shiloli. 

 But there is no positive evidence that they are from Sliiloh, other than a 

 fragment of newspaj)er in the tray, with the pencil mark "Shiloh, T. A. ( *," 

 which has not been cojjied on the label used for the specimen, tliat bearing 

 only the mark "N. J." 



SIPHONIDA. 



INTEGRIPALLIATA. 



Family ASTARTID/^^]. 

 Genus ASTAltTE Sowrrby. 



ASTAKTE CUNEIKORJUS. j 



Plate VIII, tigs. 8-10. 



Astarte cuneiformis Courad: Mioceue Foss., p. 42, PI. xx, ii}>. 0; Proc. Acad. Nat. 



Sci., Phil., 1862, p. 578: Meek, Check List Mioceue Foss., p. 7. 

 Astarte jyerplana f (Cou.) Heilprin: Proc. Acad. Nat. Sci., Pliil., 1887, p. 402. 

 f Astarte obruta (Courad) Heilpriu: Proc. Acad. Nat. Sci., Phil., 1887, p. 102. 



" Shell trigonal, much compressed; iniibo Hat, witli distant shallow undu- 

 lations, and acute little prominent ridges; apex very aiaite; lunule very 

 profound, with a sharply carinated margin; posterior side produced, cuuei- 



