52 PALEONTOLOGY OF NEW JEESEY. 



think are sufficient to warrant the 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 1862, 

 he appears to drop the name Nucula limatula 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 J limatula as now existing, which I do not consider as correct 



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 figured example, with some others, 

 are from the collection of the Academy of Natural Sciences, Philadelphia, 

 and are contained in a greenish-gray marl, resembling that from near Shiloh. 

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

 fragment of newspaper in the tray, with the pencil mark " Shiloh, T. A. C," 

 which has not been copied on the label used for the specimen, that bearing 

 only the mark "N. J." 



SIPHON1DA. 



INTEGRIPALL1ATA. 



Family ASTARTID^. 

 Genus ASTAI1TE Sowerby. 



ASTARTE CUNEIFORMS. 



Plate vin, tigs. 8-10. 



Astarte cuneiformis Conrad: Miocene Foss., p. 42, PL xx, fi£. 9; Proc. Acad. Nat. 



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

 Astarte perplanat (Con.) Heilprin: Proc. Acad. Nat. ScL, Phil., 1887, p. 402. 

 f Astarte obruta (Conrad) Heilprin: Proc. Acad. Nat. Sci., Phil., 1887, p. 402. 



" Shell trigonal, much compressed; umbo flat, with distant shallow'undu- 

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

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



