330 



BULLETIN OF THE BUREAU OF FISHERIES. 



177. Xenochirus pentacanthus Gilbert. 



This species is very generally distributed from Puget Sound to Bering Sea. It was never taken 

 abundantly, but was found at a great many different places, 71 specimens, from 1.6 to 4. 65 inches long, 

 being taken at stations 3547 (Bering Seal, 3597. 4193. 1221. 122:;. 1226, 1227. 423s, 4244, 4271, 4274 to 

 4276, 4278 to 4281, 4283, 4285 to 4289, 1290 to 4293. and 4295. 



It is very doubtful whether the prickly breast {alascanus) and narrow interorbital (pentacanthus) 

 which separate pentacanthus and alascanus are good characters. In this large series some have the 

 prickly breast but narrow interorbital. With a larger series these 2 species would very probably run 

 together. 



178. Xenochirus alascanus Gilbert. 



This species was not taken by us. It was originally described by Gilbert (1895) from vicinity of 

 Unimak Pass at stations 3216, 3219, 3223, 3225 to 3226, 3257, 3258, 3263, 3309 to 3311, 3313, 3322 r 3334, 

 3336, and 3339. Recorded from Karluk (Jordan & Gilbert 1899 1. 



179. Xenochirus latifrons Gilbert. 



We have 142 specimens, 3.5 to 6 inches long, collected by J. P. Todd near Seattle, 1903. 



180. Odontopyxis trispinosus Lockington. 



One specimen, 2.65 inches long, dredged at station 4221; one specimen, 2.4 inches long, dredged at 

 station 4193; the species also seen at station 4226, near Loring. and station 4243. Kasaan Hay. Recorded 

 from Sitka by Bean (1882) as Podotheeus trispinosus. 



181. Aspidophoroides guntheri Bean. 



Originally described by Bean (1886) 'from Alaska." in Bering Sea, perhaps. Nol found by recent 

 collectors. 



Fig. t)7.— Aspidophoroides guntheri Bean. 



182. Aspidophoroides bartoni Gilbert. 



Eleven specimens, 2 to 5.25 inches long, were dredged at stations 3599 (Bering Sea), 4273, 4276, 

 4279. 4283, 42S5, 4286, 42S9, 4291. and 4292. This species was originally described by Gilbert ( 1895 ) from 

 north ami south of the Aleutian Islands and in Bristol Bay from 41 different dredging stations, ranging 

 between 3213 and 3311. 



183. Aspidophoroides inermis Gunther. 



One specimen, 2.75 inches long, dredged at station 4272: one specimen, 1 inches, mouth Hood 

 Canal, collected by the Albatross. 1903. The type of this species came from Unalaska. The species 

 wasalso taken at Albatross stations 3213, 3219,3220, 3265. and 3322. these in Bristol Hay and north and 

 south of the Aleutian group. 



Family 36. CYCL0PTERID/E. The Lump Suckers. 



184. Eumicrotremus orbis (Gunther). 



One specimen 1.1 inches long, mouth of Hood Canal, July 1; one specimen 1 inch long dredged at 

 station 1205; one specimen 1.5 inches long dredged at station 4291 ; one specimen 3.85 inches long, taken 

 from stomach of cod caught in Bering Sea in spring of 1902 in 500 feet of water. The species has also 



