246 PALEONTOLOGY OF J^EW JERSEY. 



Genus HERCOGLOSSA Conrad. 



Hercoglossa paucifex. 



Plate XXXIX, Fig. 1. 



Aturia paucifex Cope : Troc. Acad. Nat. Sci., PMla., .1866, pp. 3, 4. 



Hercoglossa paucifex (Cope) Meek : Geol. Surv. New Jersey, 1868, p. 731. 



? Nautilus orbiculatus Tuomey : 1854, Proc. Acad. Nat. Sci., PMla., p. 167, vol. 7. 



In 1866 Prof. E. D. Cope presented before the Acad. Nat. Sciences in 

 Philadelphia a specimen of Aturia-like shell, which he described as fol- 

 lows, under the name Aturia paucifex: "Uncovered chambers, nine; sep- 

 tary processes elongate, acuminate, shallow, diverging outward from a spiral 

 line joining their bases; well separated from the succeeding septa; dorsal 

 portions of the septa short, very eccentric as regards each other; ventral 

 portions opposite them, forming nearly a right angle with the ventral out- 

 line. Siphuncle small, more dorsal than the end of the dorsal fourth of 

 the diameter. Ventral surface broad rounded; septal processes scarcely 

 visible on the ventral view." Diameter of the last chamber 3 in. 11 lines; 

 of first visible (at siphuncle), 22 1. Median diameter (from penultimate 

 chamber) 8 inches. 



Among the New Jersey cephalopoda received from the Academy of 

 Natural Sciences of Philadelphia, I find a large internal cast of an Aturia- 

 like species under the name Nautilus orbiculatus ^ with the locality ''^ Glou- 

 cester , N. J." On the cast is pasted a label, bearing the name "Aturia- 

 paucifex; Cope's type, Hercoglossa," then one or two words obliterated, after 

 which follows "Griassboro, Grloucester Co., N. J." The words Aturia pau- 

 cifex Cope's type, and the obliterated words, have been crossed out with 

 pencil and "iV. orbiculatus f " appears in ink above the original name. .The 

 specimen I believe to be the type of Prof Cope's species, as it agrees 

 with his description and also with the measurements given, but does not 

 agree with-^Prof. Tuomey's description of N. orbiculatus; at least not as 1 

 understand some parts of his very short and obscure diagnosis, which is 

 as follows: "Shell somewhat discoid, thick in the center and gradually 

 thinner toward the circumference; last chamber very large, spreading at 

 the umbilicus; siphunculus nearly central; septa profoundly undulated, 

 showing on the back a recurved lip." Prof. Cope appears to have con- 



