120 RATHBUN 
with a deep intervening sulcus; the seventh segment has a shallow 
median sulcus. 
Dimensions.—Length of ovigerous female from tip of rostrum to tip 
of telson 61.5 mm., length of carapace 16.2 mm., of antennal scale 
11.5 mm. 
Type locality.—Bering Sea, off Cape Seniavin, Alaska, 30 fathoms 
(Albatross station 3287). 
Distribution. —Bering Sea and Aleutian Islands to Sitka; Kamchatka, 
Okhotsk Sea, and Kurile Islands; in 444-61 fathoms. Taken by the 
Albatross at 70 stations, by W. H. Dall at 15 stations; by Lieutenant 
G. M. Stoney, U. S. N., at 7 stations, by C. L. McKay at Bristol Bay. 
Occurs in large numbers in Bering Sea. 
Bellingham Bay, Washington, 11 fathoms, 200 specimens (Adbatross 
station 3612). 
Bering Island, stomach of Gadus macrocephalus, 1 specimen (N. Greb- 
nitzky). 
ae Bay, Avacha Bay, Kamchatka, 1 specimen (AJbatross). 
Off Robben Island, Okhotsk Sea, 18 fathoms, 1 specimen (AJbatross 
station 3646). 
Off Kurile Islands, 14 fathoms, 1 specimen (A/batross station 3652). 
Affinities. —This species is analogous to C. a//mani Kinahan of the 
North Atlantic, but in that species the rostrum is shorter and narrower, 
the antennal scale is shorter and the end of its blade more oblique, the 
hand is longer and its anterior margin is more longitudinal than trans- 
verse. 
In the form of the carapace C. dali resembles C. alaskensis and C. 
septemspinosa, with which it occurs, but is readily separated from them 
by the prominent carine of the sixth abdominal segment and the 
shape of the hands, which in those species are oblong, but in C. 
dali widen distally. 
CRANGON FRANCISCORUM Stimpson. 
Crangon franciscorum STIMPSON, Proc. Cal. Acad. Sci., 1, 97, 1856; Jour. 
Boston Soc. Nat. Hist., VI, 495, pl. XXII, fig. 5, 1857.— HOLMES, Oc- 
cas. Papers Cal. Acad. Sci., VII, 172, 1900, and synonymy. 
Carapace about three eighths as long as abdomen. Rostrum short, 
triangular, tip broadly rounded. Antennal flagella very unequal, the 
inner one longer than the antennal scale and greatly exceeding it, the 
outer one less than half as long as the scale. Scale about three fourths 
as long as the carapace, the blade broad and slightly rounded at the 
extremity, spine exceeding it, flagellum nearly as long as, or longer than, 
the body. Maxillipeds not attaining the end of the scale; first pair of 
