DISCUSSION OF SPECIES AND THEIK DLSTKIRITION. 313 



:U' 45" W. long., at a dcptli of 843 fathoms; from station 2552, in ;;9o 47' 07" N. Lat., 70° 

 35" "NV. long., at a deptli of 721 fatli<ims; from station 2550, in 3!)^ 44' ,30" N. hit., 70o .30' 

 45" W. long., at a depth of 1,081 fathoms; from .station 2074, in 41'= 43' N. lat., 050 21' .50" 

 W. long., at a dei)th of 1,309 fatlioms; Cat. No. 3.5517, U. S. N. M., from station 2209, in .39° 

 34' 45" N. lat., 710 30' 30" W. long., at a depth of 1,OSO fathoms; Cat. No. 33.522, LI. S. N. 

 M., from station 2094, in .39o 44' 30" N. lat., 71© 04' W. long., at a depth of 1022 fatlioms; 

 Cat. Nos. 33300 and 33481, U. S. N. M., from station 2077, in 41° 09' 40" N. lat., fi<P 02' 20" 

 W. long., at a depth of 1,255 fathoms; Cat. No. 355.59, U. S. N. M., from station 2210, in .39° 

 37' 45" N. lat., 71^ 18' 45" W. long., at a dei)th of 991 fathoms ; Cat. No. 35.519, U. S. N. M., 

 from station 2200, in 39° 35' N. lat., 71° 24' .30" W. long., at a depth of 1,043 fatlioms; Cat. 

 No. .3.55.54, U. S. N. M., from station 221G, in 39° 47' N. lat., 70'3 30' ;!0" W. hmg., at a dei)tli 

 of 9G3 fathoms; Cat. No. .33380, U. S. N. M., from station 2072, in 41° 53' N. lat., 05o ,3.^' W. 

 long., at a deiith of 858 fathoms; and Cat. No. .35,455, U. S. N. M., from station 2191, in 39'^ 

 45' 30" N. lat., 70° 17' W. long., at a depth of 901 tathom.s. 



LYCODOPSIS, Collett. 



Lycodopsin, Collett, Proc. Zoi'il. Soc. Loudon, 1879, 3S1 (type, Lyrodes pncificnx, Collelt). 

 Leunjnnia, Lockixgton, Proc. U. S. Nat. Mus., 1S70, 826. 



Zoarceoidswith body elongate, eel-shajied, covered with .small, smooth, imbedded seale.s. 

 Head large; snout broad and long; interorbital space very narrow ; mouth hirge, horizontal ; 

 teeth conical, those of the upper jaw in a single row, those of the lower in a band in front, 

 the inner series enlarged, larger than the upper teeth; no teeth on vomer or palatines. 

 Ventral fins very small; vertical fins continuous, without spines. (Collett.) 



This genus is represented by one or two species from moderately deep water off tlie 

 coast of California, Oregon, and Washington. 



GYMNELIS, Reinhardl. 



Gymnelis, Reinhardt, Dansk. Vidcusk. Sclsk. Afliandl., vii. i;il, 1838 (typr, ()i>hiiiiu)n ririih, Fabririns). — 

 Gunther, Cballonger Report, xxii, ISST, 81. 



Body elongate, naked. Vertical tins without spines; ventral lins none. Small, conical 

 teeth on the jaws, vomer, and palatines. Gill-openings very narrow. No air-bladder; pylo- 

 ric ciBca none; no anal papilla. Size small. Arctic seas. 



GYMNELIS VIRIDIS, (Faisricus), Reinhardt. 



Ophidimn viride, Fabricits, F.iiuiii Gronlandica, HI. 



(lymneUsviridis, Reinhardt, K. Dansk. Vidensk. Selsk. Ai'handl., vii, IS.OS. 131.— Gai:mari>. Voy. Scand. 

 Poiss., pi. XV.— GCnther, Cat. Fish. Rrit. Mns., iv, 1S()2, 323; Cliallen,i;er Report, ,\.\ii, 1887, 82.— 

 Collett, Norsk. Noidh. Expcd. Fisk., 123, pi. iv, fig. 32.— Kroyer, Nat. Hist. Tid.sskr., 1802, l, 258.— 

 LuTKEN, Kara-Havets, Fisk. in Dijm]diiia-To!;tct, 12,"). 

 (rymiicUs pictus, Gunther, Cat. Fish. Brit. Mus., iv, 1802, 324. 



Height of body one-half the length of the head, which is contained about O.J times in 

 the total length ; snout subconical, longer than the eye; jaws equal ; month obIi(pie; maxillary 

 reaching beyond <'ye; teeth rather small, conical, in a single series on eacli sid(S forming a 

 patch anteriorly; distance from snout to vent 2h times length of liead. 



Pectoral rounded, inserted low, its length less than half that of tlie head. Dorsal com- 

 mencing over posterior third of pectorals. 



Radial formula: D. 100; A. 80. 



Color, brownish, usually with dark transverse markings, but sometimes unspotted. 



This species has been found in abundance in the Arctic seas, from Alaska to Nova Scotia. 



MELANOSTIGMA, GUnther. 

 Mclanoatigma, Gunther, Proo. Zool. Soc. London, 1881, 20; (Miallengcr Roport, xxii, 1877, 82. 



This genus agrees with GijmncliK and Mitynea in the absence of ventral tins, and tech- 

 nically may be distingnished IVoin both by tiic nnn^Ii more elongate teeth, which in the jaws, 

 as well as on the vomer and iialatines, stand in a single series. However, there are other 

 striking difference.s, which will be meiitioiie(l in the subsequent description. 



