142 RATHBUN 
first to fourth segments of the abdomen have a median carina, usually 
sharp and high on the first three segments but not extending the full 
length of each segment. 
Dimensions.— Female, length 66.5 mm., length of carapace 17.7 mm. 
Male, length 44.3 mm., length of carapace 11.2 mm. 
Distribution.— From Bering Sea, near the Pribilof Islands, to Oregon, 
including Puget Sound, 24-121 fathoms. Taken by the Albatross at 38 
stations. 
Also collected by W. H. Dall at the following localities: 
Iliuliuk, Unalaska, 3-6 fathoms; Captains Bay, Unalaska; Shahafka 
Cove, Kadiak. 
NECTOCRANGON CRASSA Rathbun. 
Nectocrangon crassa RATHBUN, The Fur Seals and Fur-Seal Islands of the 
North Pacific Ocean, Pt. Il], 556, 1899. 
Female.—Body stout. 
Carapace more than one third the length of the abdomen; three 
strong equidistant spines on the median carina; between the first of these 
spines and the 
spine on the ante- « 
rior margin there 
is a small tooth 
or spinule. Lat- 
eral carina well marked. Antennal 
spine not reaching the antennal scale. 
Spine of scale extending well beyond 
the blade Fic. 84. Nectocrangon crassa. 2 (X13). Sta- 
: tion 3245. @. Dorsal view of carapace and ab- 
The hand of the first pair of feet is domen. 4. Side view. 
a little more than three times as long as wide; its anterior margin is longi- 
tudinally oblique; the spine is short and stout. Sternal crest of male 
armed with spines. 
Abdomen slightly sculptured; first to fifth segments furnished with a 
(\ (| blunt median carina; sixth and seventh segments having 
a 


two carinz, those of the sixth segment converging and 
disappearing toward the posterior margin; this margin has 
Fic. 85. Mec- a large lobe at the supero-lateral angles; the fourth, fifth, 
tocrangon crassa. 
2K, St and sixth segments have a small tooth or spine at infero- 
cle. “4. Chela. posterior angles. 
Male.—Smaller and more slender than female; abdominal carine 
stronger. 
Dimensions.— Female, length 48.5 mm., length of carapace 13 mm. 
