DECAPODS 21 
hepatic area backward over the branchial region nearly to the posterior 
border of the carapace. 
Eyes of moderate size, subglobular on somewhat smaller cylindrical 
stalks, the cornez of a dark brownish color. 
The flattened antennular spine does not reach the end of the basal 
segment; both of the flagella exceed the carapace in length. The second 
antennz exceed in length the whole body; there is an acute spine on 
the peduncle below the articulation of the scale; the scale is long-oval, 
armed with a spine at the distal end, and overreaches the antennular 
peduncle by a third of its length. 
The third maxillipeds extend as far forward as the end of the antennal 
scale. 
The first pair of legs, when extended forward, surpass the third 
maxillipeds by the length of the dactylus; the merus is either unarmed, 
or may have one, two, or even three spines; the basal part of the 
propodal segment is half again as long as the dactylus. The second 
pair of legs are longer than the first by about half the length of the 
fingers, and have longer and more slender chele; the second segment 
is armed with a small spine at the distal end of its inferior margin. The 
third pair reaches forward a little beyond the proximal end of the chela 
of the preceding pair; except for the first two segments, they are thread- 
like; all the segments are naked and unarmed; the merus is about one 
half the length of the whole appendage, and more than twice as long as 
the propodus. The fourth pair of legs reaches scarcely to the middle 
of the merus of the second pair; the lower margin of the dactylus, 
propodus, and distal half of the carpus is fringed with bristles. The 
fifth pair, when extended, reach to the middle of the merus of the 
second pair; the dactylus is elongate-oval, the margin of its distal half 
fringed with long sete. 
The second to sixth abdominal segments inclusive are carinated on 
the median line. The sixth segment is from two thirds to three fourths 
longer than the fifth; it is marked on either side by a 
curved longitudinal ridge. Telson four fifths as long C- 
as sixth segment; dorsal surface channeled; extremity ee eae oc eay 
with a deep notch, bordered by spinules, which in- Station 3455. 
crease in size and are continued to the posterior outer angle of each 
lobe; the outer spinule is considerably longer than the others and is 
very often broken off. 
Dimensions.—Length of female, 64.8 mm.; length of carapace, 20.3 
mm. 
Distribution.—This species occurs sparingly from Unalaska and the 

a 
