FAMILY RAID. — RHINOPTERA. 375 
THE BROAD STING-RAY. 
PasTINACA MACLURA. 
PLATE LXV. FIG. 213. 
Raia maclura. Lesveur, Jour, Acad. Nat. Sc. Vol. i, p. 41, plate. (Female.) 
Characteristics. Body oval, elliptical, broader than long. Tail short ; one third of the length 
of the body. Width six to ten feet. 
Description. Shape transversely elliptical. Snout blunt, not produced beyond the lateral 
margins of the pectoral fins, but continuous with them. Surface roughened with minute 
granulations like shagreen. Eyes small, and near the snout; temporal orifices large, and near 
the eyes. Nostrils small, and near the mouth, not extending to the upper lip. Mouth seven 
or eight inches, with minute numerous triangular acute teeth, each emarginate at the base, 
for the reception of the hind teeth. Ventral fins short, broad and rounded. ‘Tail short, tri- 
angular, one-third of the length of the body, with one or two spines very near the base. 
Color. Above greenish blue, with small black vermicular interrupted lines, and larger dis- 
tant pale spots ; beneath pale red. Pupils black, round; irides green, radiated with black. 
Length, 42°0. Width, 79-0. 
According to Lesueur, whose description and figure I have adopted, this species is found 
at Newport (R. I.), and is frequently found measuring from fifteen to eighteen feet in width. 
(EXTRA-LIMITAL.) 
P. sabina. (Lesurur, Ac. §. Vol. 4, p. 109.) Orbicular. Tail more than twice as long as the body. 
Ventral fins long, pointed. A row 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. Length Florida. 
GENUS RHINOPTERA. Kudl. 
Head distinctly projecting from the pectorals, and divided into two short lobes ; beneath 
which are two similar ones. Teeth broad and flat. 
THE COW-NOSE RAY. 
RHINOPTERA QUADRILOBA. 
PLATE LXVI. FIG. 217. 
Raia bonasus, The Cow-nose Ray. Mircutwt, Trans. Lit. and Phil. Soc. Vol. 1, p. 479 
Raia quadriloba. LesvEur, Jour. Acad. Nat. Sciences, Vol. 1, p. 44 (plate). 
Characteristics. Body rhomboidal, elevated along the dorsal line. Pectorals acute. Tail 
slender, longer than the body. Width of the body two feet. 
