N0.1112. PROCEEDINGS OF THE NATIONAL MUSEUM. 387 



over the posterior edge of the opercular flai), and the first six or seven 

 rays are re<?alarly graduated, the first being much shorter than the 

 pupil. The eye is as long as the snout and nearly one-fourth as long 

 as the head. The interorbital space is very narrow, less than one-half 

 the diameter of the eye. The vent is under the twenty-third spine of 

 the dorsal. 



The Lianpenus fahricii of Gaimard ^ is represented with dorsal LXIY ; 

 A. I, 41. It agrees in every respect, as far as we can make out, with 

 the examples of L. anyuillaris, above described. Its long, tapering 

 caudal is perfectly distinct from the dorsal and anal. Mouth small, 

 lower jaw short, six branchiostegals, the spinous dorsal beginning over 

 the upper angle of the gill opening, and other characters possessed by 

 anguiJlaris are present. The anterior spines of the dorsal are regu- 

 larly graduated. The vent is under the twenty- first dorsal spine. 



Color exactly as in the preceding. 



LUMPENUS MEDIUS (Reinhardt), Kroyer. 



No. 27544, U.S.N.M. Plover Bay, Siberia, August 13, 1880; DaU and 

 Bean. Two specimens, 100 to 138 mm. long. 



These were at first referred to LumpenuH fahricii., but we are now sat- 

 isfied that the specimens do not belong to that species, but to L. medius. 



The length of the larger specimen is 138 mm., of which the caudal fin 

 equals 15 mm. The smaller example is 100 mm. long, the caudal meas- 

 uring 11 mm. The caudal is long and moderately tapering, and is con- 

 nate with the dorsal and anal. The jaws are equal, the maxilla extending 

 to below the front margin of the eye. Teeth in the jaws in two rows, 

 rather wide set, uniform in size; the teeth of the outer row of the upper 

 jaw are larger than those of the inner row ; the outer row of the lower jaw 

 is on the lips. No teeth on the vomer; a few weak palatine teeth. Gill 

 membranes very deeply cleft and attached to the isthmus, the distance 

 between tbeir point of attachment and the root of the ventral equaling 

 one-half the length of the head. 



Eye large, slightly longer than snout, 3^ in head. luterorbital space 

 narrow, convex, less than one-half the diameter of the eye. Lips well 

 developed. The ventral fins originate in front of the pectoral base; 

 they are short and slender, scarcely longer than the eye. Gill-rakers 

 very short; 17 on the first arch. Pectorals long, with a broad base, 

 their length nearly equal to that of the head without the snout. Width 

 of pectoral base equals length of eye; when extended this fin reaches to 

 below the eleventh spine of the dorsal. The vent is under the twentieth 

 spine of the dorsal. The dorsal origin is almost directly over the top of 

 the base of the pectoral. The anterior spines of the dorsal are regularly 

 graduated up to about the seventh, the first spine being one-half as 

 long as the eye, the longest spine as long as the eye. The longest 

 anal rays equal the length of the eye. The length of the head is 



1 Voy. en Scandinavie, pi. xiv, fig. 1. 



