DECAPODS 



not attaining end of scale, a little longer in male than in female ; inner 



one exceeding scale. Scale oblong, nearly as long as carapace, laminar 



portion considerably 



exceeding spine ; pe- 



duncle extending to 



the middle of the third 



joint of the antennu- 



lar peduncle ; flagel- 



lum nearly as long as 



body. 



The maxillipeds ex- 

 tend to middle of an- 

 tennal scale ; first pair 

 of feet nearly to end 

 of antennal peduncle ; 

 third, fourth, and fifth 



pairs Of nearly equal FIG. 35. Spirontocans barbata. ?. Station 3318. a. Side of cara- 

 the third Pair P aceanda domen (X **> * Dorsal view of anterior portion (X 2j). 



reaching spine on antennal scale ; second pair a little shorter. 



The abdomen is sharply carinated from the middle of the third to the 

 end of the fifth segment ; the third to sixth segments terminate in a 

 slender median spine, by which this species differs from all others ; third 

 segment with a subterminal hump visible in profile. The fourth segment is 

 provided with a lateral spine, the seventh with 3 pairs of lateral spinules. 



Dimensions. ? , length 74.5 mm., length of carapace and rostrum 

 29.6 mm., of carapace 12 mm. 



Distribution. from Pribilof Islands to Strait of Fuca; 45-277 

 fathoms (Albatross). Occurs usually in small numbers ; most abundant 

 in Iliuliuk Harbor. 



Taken by the Albatross at the following stations : 

 Off Pribilof Islands, 56-184 fathoms, stations 3484, 3487, 3488, 3489, 



349 r 349 2 3494, 3495* 3497 (tyP 6 locality), 3500, 3609. 

 Off Makushin Bay, Unalaska, 61 fathoms, station 3318. 

 Off Iliuliuk Harbor, Unalaska, 277 fathoms, station 3315. 

 Iliuliuk Harbor, Unalaska, 45-93 fathoms, stations 33 1 1-33 14, 3334-3336. 

 Off Akutan Island, 5172 fathoms, stations 2841, 2842, 3547. 

 Off Aektok Island, 54 fathoms, station 2844. 

 Unimak Pass, 50-56 fathoms, stations 3222, 3223. 

 South of Unimak Island, 61 fathoms, station 3216. 

 Shumagins, 48-58 fathoms, stations 2847, 2852. 

 Off Shumagin Bank, 138 fathoms, station 3339. 

 Off the Trinity Islands, 159 and 61 fathoms, stations 2853, 3341. 

 Strait of Fuca, 123 and 114 fathoms, stations 3459, 3461. 



