122 RATHBUN 
Dimensions. —Length of female 70.6 mm., of carapace 18.9 mm., of 
antennal scale 13 mm. Length of hand of male 9.5 mm., width 1.8 mm. 
Length of hand of male of C. franciscorum 11 mm., width 2.6 mm. 
Type locality —Offt Chuck-a-nuts Island, Bellingham Bay, Washington, 
11 fathoms (A/da/ross station 3612). 
Distribution. — British Columbia to Oregon as follows: 
Gulf of Georgia, British Columbia, 67 fathoms (A/satross station 2863). 
Washington Sound, Strait of Fuca, 48 fathoms (A/datross station 2864). 
Strait of Fuca, 53-67 fathoms (A/datross stations 3460, 3597). 
Admiralty Inlet, Puget Sound, 40 fathoms (A/bazross station 2865). 
Seattle, Washington, taken at the surface by electric light (A/batross). 
Off Columbia River, 27 fathoms (A/éatross station 3065). 
Astoria, Oregon (Aug. C. Kinney). 
Off Tillamook Rock, Oregon, 23-28 fathoms (A/¢atross stations 3060, 
3061). 
It will be noticed that the two forms meet off the coast of Oregon, 
where the differences are less sharply drawn. 
CRANGON INTERMEDIA Stimpson. 
Crangon intermedia STIMPSON, Proc. Acad. Nat. Sci. Phila., x11, 25 [94 of 
separate], 1860. In Bering Sea near Cape Chepoonski, 40 fathoms. 
Crangon tenuifrons KINGSLEY, Bull. Essex Inst., XIv, 128, pl. I, fig. Io, 
1882. Marmot Island, Kadiak. 
Carapace about two fifths as long as the abdomen; furnished with a me- 
dian carina having 2 spines, a stout one about half way between the orbit 
and the posterior margin, and a smaller one a little behind the rostrum. 
Rostrum convex in profile, having a longitudinal sulcus and a rounded tip. 
On the anterior margin there is a blunt spine at the outer angle of the 
orbit and a sharp spine at the antero-lateral angle. On a line with the 
orbital spine there is a smooth carina; below the carina a sharp spine 
well forward and terminating a short carina; higher up a flattened blunt 
spine or tubercle, situated about half way between the two median spines. 
The antennal scale is short and broad, about half as long as the cara- 
pace; the spine scarcely exceeds the blade. The outer maxillipeds ex- 
ceed the antennal scale by half the length, or more, of their terminal 
segment. ‘The first pair of feet overreach the scale slightly; the merus 
has a short spine at the middle of its inner margin; the manus is about 
three times as long as wide; the pollex arises at about the distal third; 
the dactylus when flexed is slightly more longitudinal than transverse. 
The sternum has a lobate median crest, which in the male has a tendency 
to become spiniform. 
The first five segments of the abdomen are distinctly carinated; the 
sixth segment has two prominent carine. 
