DECAPODS 91 



Off Bristol Bay, 33 fathoms, stations 3303, 3306. 



North of Alaska Peninsula, 26-47 fathoms, stations 3278, 3285, 3292, 



3 2 97- 

 Off Unimak Island, 24-43 fathoms, stations 3259, 3262, 3265, 3266. 



Off Akutan Island, 72 fathoms, station 2842. 



Unalaska, 19-165 fathoms, stations 3310, 3317, 3319, 3322, 3333-3336. 

 Shumagins, 21-69 fathoms, stations 2847, 2849-2851. 

 Davidson Bank, 43 fathoms, station 3215. 

 Off Sitkalidak Island, 60 fathoms, station 2854. 

 Off Grays Harbor, Washington, 50 fathoms, station 3047. 

 Strait of Fuca, 48-152 fathoms, stations 2864, 3443, 3445, 3446, 3451, 

 3454, 3460-3462, 3596. 



Cape Smyth, Alaska (Point Barrow Expedition). 



Captains Harbor, Unalaska, 80 fathoms (W. H. Dall). 



Bay of Islands, Adak, 9-16 fathoms (W. H. Dall). 



Lituya Bay, 6-9 fathoms (W. H. Dall). 



Berg Bay, Glacier Bay, and Juneau, 20 fathoms (Harriman Expedition). 



Puget Sound (Stimpson) ; Bare Island, British Columbia (Lenz). 



SPIRONTOCARIS MOSERI Rathbun. 



Spirontocaris gaimardii RATHBUN, The Fur Seals and Fur-Seal Islands of the 



North Pacific Ocean, Pt. Ill, 556, 1899 (part). 

 Spirontocaris moseri RATHBUN, Proc. U. S. Nat. Mus., XXIV, 897, 1902. 



Allied to S. gaimardii. 



jFemate.The rostrum may be about as long as, or slightly exceed, the 

 carapace; it may reach the end of the antennal scale or fall short of 

 that point ; it is gently 

 ascending and armed 

 with 6 to 8 teeth above 

 (2 on carapace) and 

 4 to 7 below; upper 

 limb very narrow ; 



FIG. 39. Spirontocaris moseri. ? (X 2). 



lower limb very broad station 34 8o. 



in front of the eye, tapering rapidly to the tip, which is 

 abruptly acute. The antennal spine is strong, the ptery- 

 gostomian small but well marked. 



Eyes large, pyriform. The antennular peduncle reaches 

 to the middle or to the distal third of the antennal scale ; 

 the second segment is a little longer than the third; the 

 thickened portion of its outer flagellum overreaches the 

 scale ; the spine of the antennular acicle reaches to the middle of the 

 second segment or about to the end of the first segment. The antennal 

 peduncle is very stout and nearly as long as the antennular ; the scale is 

 narrow-ovate, its outer margin about five sevenths as long as the cara- 



