DECAPODS 131 
spine is larger and farther forward, advancing to a line in front of the 
rear line of the orbits; the antero-lateral spine is longer and slenderer and 
bent more outward; the rostrum is narrower, longer, and acute, and as- 
cends at an angle equal to that of the spine directly behind it; the spine 
SATs, 
Fic. 70. Crangon © saa retin g (x 2). Station 3351. @. Dorsal view 
of carapace. 4. Side view. 

of the antennal scale is much shorter than the blade; the hand is longer 
and narrower, and its anterior margin more longitudinal ; the spines of the 
ventral surface of thorax and abdomen are long and slender. This species 
furthermore differs from those hitherto described in having the segments 
of the pleon armed laterally with spines, the first three segments with two 
spines each, the next three with one spine each at the postero-lateral angle ; 
the sixth segment also with a slender spine at the postero-superior angle. 
Dimensions.— Female, length of body 36 mm., of carapace 10.5 mm. 
Male, length of body 34.6 mm., of carapace ro mm. Length of hand 
loose in bottle 5 mm., width 1.4 mm. 
Lype locality.—Off Point Arena, California, 51 fathoms (A/batross sta- 
tion 3351). 
Distribution.— Off Oregon and California, 51-96 fathoms: 
Off False Tillamook, Oregon, 62 fathoms, station 3090. 
Off Point Conception, California, 96 fathoms, station 2906, 
CRANGON SPINIROSTRIS Rathbun. 
Crangon spinirostris RATHBUN, Proc. U. S. Nat. Mus., xxiv, 891, 1902. 
Also allied to C. munita and its associates, but differing from them all 
in its long spiniform rostrum. 
The position of the spines of the carapace is Sa; 
similar to that in C. munifa. The rostrum and the “Sy ~~ aut 
spine behind are long, slender, and suberect, the 
rostrum the longer. The orbital spine is slender 
and ascending; the antero-lateral spine is directed «4 
upward and outward. The spines of the first two 
antennular segments are slender; that of the anten- 
; : Fic. 71. C ind 
nal scale is longer than usual, exceeding the blade. yospas.7" 9 (CoS "shin 
a. Dorsal view of 
The hand is about three times as long as wide. Of datapace. 8. Side view. 
the projecting plates on the ventral surface of the thorax in the male, the 
