158 



Ceratoptera vampii^s, Dumeril, Elasmobr. p. 660. 



This huge monster of the deep is found in the drains of th« 

 ocean, near Sinepuxent Bay, and occasional near the entranc* 

 to Chesapeake Bay. 



LXIII— TRYGONIDE. 



PTEUOPLATEA, Mulier & Henle. 



P. maclura. 



Broad Sting-Eav, qi Butterfiy Eay. 



Body oval, elliptical, broader than long; snout blunt, not 

 produced beyond the lateral margins of pectoral tins, but con- 

 tiguous with them. Surface rough; eyes small, near the 

 snout; mouth with minute, triangular, sharp teeth, each 

 emarginated at base to receive the hind teeth. Ventral fins 

 short, broad and rounded. Tail short, one-third as long as 

 body, triangular, with one or two spines near the base. Above 

 greenish-blue, with small, black, vermicular, interrupted 

 lines, and larger, distant, pale spots; beneath pale red; length 

 15 to 18 feet. 



P. maclura, I. c. p. 169. 

 ~ Euja maclura, Lesueur, Journ. Ac. iSat. Sc.Philad. I p. 41. 



Paslinaca maclura, DeKay, New York Fauna, Fishes, p. 

 375, pi. G5, fig. 213. 



Occasional on the coast of Worcester county. 



S.I. 



TRYGON, Adanson. 



T. centrura, 



The Stingaree. 



Body quadrilateral, rounded on the pectoral angles; its 

 transverse and longitudinal diameter nearly equal. Snout 

 pointed; teeth small, flat, lozenge-shaped. Upper surface of 

 body smooth, covered with dark slime. Tail longer than 

 body, cylindrical, rough, tapering- and flexible towards the 

 end" armed with two or more small, flattened, pointed and 

 teethed spines. Above uniform olive-brown; beneath whitf. 

 Length of body and tail 5 to 8 feet. 



T. centrura, Mitch. 



Common on the ocean coast of Worcester county and 

 around the entrance to Chesapeake Bay. 



Acad. Coll. S. I. 



