234 BULLETIN OF THE 
from the circular in the outline of the disk, the portion in front of the head 
being slightly produced. The posterior outlines of caudal and dorsals are more 
convex than in the variety corallina, and less so than in the Rio Janeiro 
specimens. 
Uniform leaden or olive brown, with the markings outlined by a series of 
small round spots. This is probably what was considered by Müller & Henle 
and Duméril the first variety of the species. 
Narcine corallina. 
Var. nov. NV. brasiliensis, 
Two adult males belonging to this species which were taken at Key West 
differ in à marked degree from those secured at Rio Janeiro. 
Ground color orange or reddish; a dark brown band across the head in front 
of the eyes, interrupted on the forehead ; a large triangular space of the light 
color on the snout in front of the dark band. The other dark markings be- 
hind the frontal band are reduced in size and indicated only by the margins, 
which are incomplete, or merely series of small round spots. All the dark 
color on the body is much faded, the band upon the head alone being very dis- 
linet. Posterior borders of caudal and dorsals truncate. 
The truncation of the fins and the colors are the striking characters of this 
variety. Were it not for the excessive amount of individual variation in 
species of the genus I should have little hesitation in classing these specimens 
as representatives of a distinct species. 
Raja Ackleyi, sp. nov. 
Disk including the ventrals rhombie, longer than wide, anterior margins 
sinuous, posterior outline convex ; tail moderate, depressed, with a narrow cuta- 
neous fold on each side, tapering. The angle formed by the snout is less than 
right. Rostral cartilage rather slender. Mouth moderate, much curved, width 
one and two thirds times in distance from end of snout. Teeth small, cusps 
sharp, in forty-two rows on the upper jaw (male adult). Eyes moderately large, 
interorbital space narrow, deeply concave, width three times in the distance from 
the end of the snout to the eye. Spiracles smaller than the eye. Ventrals 
medium, portion in front of the notch rather small Dorsals small, separated 
by a space with tubercles. A vertebral series of small tubercles on back and 
tail; two lateral series on each side of the tail; a series on each orbital ridge ; 
a group of several above the end of the rostral cartilage ; a group on each pec- 
toral opposite eye and spiracle ; a group of retractile spines opposite the shoul- 
der near the outer angle of the pectoral. Excepting the above, in this specimen, 
the disk is smooth on the upper surface. The ventral surface is smooth, with 
the exception of the portion anterior to the mouth which is covered with fine 
sharp scales or shagreen. 
