670 



BULLETIN OF THE UNITED STATES FISH COMMISSION. 



Scales on back and sides densely covered with tilender bristle-like spines, which are arranged 

 in numerous parallel series somewhat difficult to determine; on head the spines are much coarser 

 and less numerous, and the series strongly radiate; mandibles, gill-membranes, and the space below 

 suborliitals and rostral ridge naked, the rest of head completely invested; lateral line prominent and 

 continuous, describing a low curve above pectoral fin. 



Color light grayish, cheeks and opercles not darker than sides of body; under side of snout, lips, 

 and mandibles blackish, mcjre or less mottleil with silvery; gill-membranes purplish black, breast, and 

 abdomen dusky; mouth and gill-cavities whitish, lining of alxlominal cavity bright silvery, with 

 scattered black specks; membrane of first dorsal silvery with scattered black specks, a few small dark 

 spots on the rays; anal whitish, blackish at base of the anterior 12 rays; pectorals and ventrals dusky, 

 the latter with silvery pigment; ventral filament white. 



One specimen only. 



Named for Lieut. G. H. Burrage, U. S. Navy, navigating and executive officer of the AUintrum, to 

 whose efforts was directly due uuu'h of the success of the expedition. 



Macrourus obliquatus, new s[]ecies. Fig. 261. 



Type, 155 mm. long, from station 4141, nff the east coast of Kauai. de|ith 4:^7 to 632 fathoms; type, 

 No. 51514, U. S. Nat. Mus. 



Body very long and slender, depth at origin of dorsal contained 1.6 tiujes in heail. First dorsal ii, 

 11; V. 12; 1*. 22 or 23; scales between lateral line and base of second dorsal spine 9. 



Head rather long, with moderately projecting snout, and narrow inferior mouth, which is nuich 

 overpassed by the snout anteriorly and by the infraorbital ridges laterally; length of snout slightly 

 exceeding vertical diameter of orbit, contained 3.6 times in length of head, its preoral length 0.3 



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Fig. '2fil. — MacrrniriJtt itlil/'i/mlns <iilln'rl, urw t^pucies. Type. 



length of head behind snout; sno\it terminating in a very spinous tubercle <lirected very obliquely 

 upward; a |iair<.if iirominences also on side of snout where each infraorbital ridge joins the ridge which 

 Imunds the ujiper portion of the nasal fossa; from the meilian tubercle a ridge extends backward nearly 

 to middle of internrliital sjiace, the latter deeply concave; from the supraorbital rim a pair of curved 

 ridges converge liackward toward occiput; width of interorbital si)ace equal to 0.7 the long diameter 

 of orliit, which is oblique downward and backward, and e<jual tci 0.3 length of head; front of mouth 

 slightly in advance of nostrils; tip of maxillary scarcely reaching vertical fnini hinder edge of pupil, 

 its length eiiualing 0.3 that of head; greatest width of mouth contained 1.7 times in its length; liehind 

 angle of iriouth, on outer mandibular rim, a short strung c(iiii|ircsscd sjiine directed backwanl; teeth 

 in rather wide villiform bands in lioth jaws, 12 or 14 of the outer series in the front of upper jaw, at 

 least twice the size of the villiform teeth behind them; cheek produced downward and backward into 

 a narrow rounded lobe encrnaching on preoperclc; prcopercular margin nnf produced, its vertical 



