DECAPODS 129 
CRANGON ACCLIVIS Rathbun. 
Crangon acclivis RATHBUN, Proc. U.S, Nat. Mus., xxiv, 890, 1902. 
Allied to C. munita. Lower lateral spine of carapace farther back; 
anterior median spine much larger and farther forward; it projects well 
in front of the posterior line of the orbits. 
The rostrum is narrower, and ascending at 
an angle of about forty-five degrees. The c 
d 
scale 3 mm. 
Lype locality.— Ot Santa Cruz Island, Cal- Fic. 68. Crangon acclivis. a. Dorsal 
iioraia, 260 fathoms  (A/baross station Yew ot corapece. $x 4). Station 2946, 

Dimensions.— Length of male 24.8 mm., 
anterior margin of the hand is more longi- 
length of carapace 7.4 mm., of antennal 
b. Side view (X 34). c. Acicle. 2 (x 8). 
tudinal than in C. munifa. The divisions of 
the ventral carina of the thorax in the male 
are much more spiniform in this species. 
2948), I male. d. Chela. @ (X 8). 
Distribution.— Off the Trinity Islands, Alaska, 159 fathoms (A/batross 
station 2853); Santa Catalina Island, California, 80 fathoms (A/batross 
station 3664); southwest of San Nicholas Island, California, 158 fathoms 
(Albatross station 2898). One specimen taken at each locality. 
In the foregoing species the first four segments of the abdomen are 
smooth. We now come to a group also resembling C. munita in general 
appearance, but having the abdomen in front of the fifth segment more or 
less carinated. 
CRANGON VARIABILIS Rathbun. 
Crangon variabilis RATHBUN, Proc. U. S. Nat. Mus., XxIv, 890, I902. 
The carapace is much like that of C. munifa, but is nearly half as long 
as the abdomen. The rostrum is short, convex from behind forward 
and the tip rounded and 
thickened. The anten- 
nal scale has a concave 
outer margin and the 
spine equals or extends 
beyond the blade. The 
V 5 . chelipeds are stouter; the 
e hands vary from two and 
a half to three times as 
id 
¢ ° 
Fic. 69. Crangon variabilis, @. Station 2842. a. Dorsal long as wide. The sec- 
view of carapace and abdomen (xX 2). 4. Side view of carapace 5 
(X 2). ¢. Acicle (x 4). @. Chela (<4). ond, third, fourth, and 

