DECAPODS 83 
not attaining end of scale, a little longer in male than in female; inner 
one exceeding scale. Scale oblong, nearly as long as carapace, laminar 
portion considerably 
exceeding spine; pe- 
duncle extending to 
the middle of the third 
joint of the antennu- 
lar peduncle; flagel- 
lum nearly as long as 
body. 
The maxillipeds ex- 
tend to middle of an- 
tennal scale; first pair 
of feet nearly to end 
of antennal peduncle ; 
third, fourth, and fifth 
pairs of nearly equal Fic. 35. Spzrontocaris barbata. 9%. Station 3318. a. Side of cara- 
length, the third pair pace and abdomen (X 13). 8. Dorsal view of anterior portion (x 23), 
reaching spine on antennal scale; second pair a little shorter. 
The abdomen is sharply carinated from the middle of the third to the 
end of the fifth segment; the third to sixth segments terminate in a 
slender median spine, by which this species differs from all others; third 
segment with a subterminal hump visible in profile. The fourth segment is 
provided with a lateral spine, the seventh with 3 pairs of lateral spinules. 
Dimensions.— 9, length 74.5 mm., length of carapace and rostrum 
29.6 mm., of carapace 12 mm. 
Distribution.—¥rom Pribilof Islands to Strait of Fuca; 45-277 
fathoms (Adbatross). | Occurs usually in small numbers; most abundant 
in Iiuliuk Harbor. 
Taken by the A/atross at the following stations: 
Off Pribilof Islands, 56-184 fathoms, stations 3484, 3487, 3488, 3489, 
3491, 3492, 3494, 3495, 3497 (type locality), 3500, 3609. 
Off Makushin Bay, Unalaska, 61 fathoms, station 3318. 
Off Iliuliuk Harbor, Unalaska, 277 fathoms, station 3315. 
Iliuliuk Harbor, Unalaska, 45-93 fathoms, stations 3311-3314, 3334-3336. 
Off Akutan Island, 51~72 fathoms, stations 2841, 2842, 3547. 
Off Aektok Island, 54 fathoms, station 2844. 
Unimak Pass, 50-56 fathoms, stations 3222, 3223. 
South of Unimak Island, 61 fathoms, station 3216. 
Shumagins, 48-58 fathoms, stations 2847, 2852. 
Off Shumagin Bank, 138 fathoms, station 3339. 
Off the Trinity Islands, 159 and 61 fathoms, stations 2853, 3341. 
Strait of Fuca, 123 and 114 fathoms, stations 3459, 3461. 
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