

Stover's Synopsis of the Fishes of North America. 261 



flattened spine, serrated on both edges ; the rest of the tail slender, without 

 fins, and ending in a point ; teeth small. 



1. Trygon hastata, Dekat. 



JJudy quadrilateral, rounded on the pectoral angles. Uniform olive-brown above; white 

 beneath. Upper surface partially smooth. Tail longer than the body, and armed with two 

 or more spines. 



Width, 3 feet. Entire length, 5 to 8 feet. 



Rhode Island, Dekay. Connecticut, Linsley. 



Rata centroura(!), Prickly-tailed Sting-Ray, Mit-chill, Trans. Lit. and Phil. Soc. of N. Y., i p. 479. 

 Pastinaca hastata, Whip Sting-Ray, Dekay's Report, p. 373, pi. 65, fig. 214. 

 Trygon centroura, Whip tailed Sling-Ray, Linsley's Cat. of Fishes of Connecticut. 



2. Trygon Madura, Lesueur. 



l)ody oval, elliptical, broader than long. Tail short, one third of the length of the body. 

 Above greenish blue, with small black vermicular, interrupted lines, and larger distant, pale 

 spots; beneath, pale red. 



Length, 15 tq 18 feet. 



Rhode Island, Lesueur. Connecticut, Linsley. 



Raia Madura, Lesueur, Jonrn. Acad. Nat. Sc, I. p. 41, plate. 

 Pastinaca Madura, Broad Sting-Ray, Dekay's Report, p. 375, pi. 65, fig. 213. 

 " " " " Linslby's Cat. of Fishes of Connecticut. 



3. Trygon sabina, Lesueur. 



Body orbicular ; tail more than twice as long as the body ; ventral fins long, pointed ; a 

 range of spines upon the back and the origin of the tail ; two spines on each side of the back. 

 Upper part of the head rough ; appendices in the male slender, distinct, as long as the ven- 

 trals. 



Length, (?)• 



Florida, Lesueur. 



Trygon sabina, Lssubub, Journ. Acad. Nat. Sc., iv. p. 109. 

 Pastinaca sabina, 1>ekay's Report, p. 375. 



Cuvier, not having assigned any reason why he has substituted the genus " Pastinaca" 

 for Adanson's " Trygon," I have followed Yarrell in retaining the latter. 



GENUS III. MYLIOBATIS, Ddm. 



Head projecting from the pectorals, and the latter more broad transversely 

 than in the other Rays, which gives them somewhat the appearance of a bird of 



