2138 Bulletin //, United States National Museum. 



head; like the anal, it is continuous with the very narrow caudal fin, 

 there being no notch or evident separation between them; distance from 

 tip of snout to front of anal If in distance of latter from base of caudal; 

 dorsal with about 45 rays ; caudal with a very narrow base, containing, 

 apparently, 14 rays, its length equaling that of snout and eye. Color light 

 brownish, everywhere dusted with minute black specks, which are largest 

 on back and tail ; lining of mouth and gill cavity and peritoneum white. 

 Eggs large, visible through the abdominal wall, about 3^ mm. in diameter. 

 Length 3 inches. Bering Sea, north of Unalaska Island, in 350 fathoms ; 

 only the type known, (juinpog, reduced; rptfjua, aperture.) 



Oyrinichthys minytremufi, GILBERT, Kept. U. S. Comm. 1893 (1896), 444, Bering Sea, north 

 of Unalaska Island, at Albatross Station 3331, in 350 fathoms. (Type, No. 48617.) 



789. AMITRA, Goode. 



Amitra, GOODE, Proc. U. S. Nat. Mus. 1880, 478 (liparina) . 



Monoinitra, GOODE, Proc. U. S. Nat. Mus. 1883, 109 (liparina) ; name changed on account of 

 the prior use of the name Amitrus. 



Body elongate, attenuate backward, covered with lax, smooth, slimy 

 skiu, which is separated from the body and fins by a filmy mucous inter- 

 tissue. Head small, thick, convex between eyes; snout convex, protrud- 

 ing; mouth small, horizontal, the lower jaw included; teeth small; eyes 

 lateral ; gill openings restricted to small slits above the base of the pecto- 

 rals, covered by the very small opercle; pseudobranchia} present, very 

 small, no barbels; dorsal and anal fins many-rayed; dorsal continuous, 

 almost concealed by the skin, the spines scarcely different from the soft 

 rays; anal similar to dorsal; both connected with the caudal, which is 

 pointed; no trace of ventral fins or sucking disk; pectoral fin very broad, 

 procurrent, its lower rays inserted nearly under the eye, the fin emargi- 

 nate; vent well behind head. This genus is of very doubtful value, the 

 presence of pseudobranchiss alone separating it from Paraliparis.* (a, 

 without; jitirpa, stomacher.) 



2471. AMITRA LIPARINA, Goode. 



D. 67; A. 54; pectoral 23; caudal 6. Body elongate, compressed pos 

 teriorly, very thin at the tail, covered by a thick, lax, slimy skin. 

 Head small, thick, convex between the eyes, length 4 times in width, - 2 a - 



* The folio wing words of Professor Putnam, written hefore the discovery of Paychro- 

 lutes and Liparididce without ventral disk, are of interest in this connection : "I should 

 put the family of Gobiesocidce far away, at least a suborder off, from the Cyclopteridce and 



tripterus as with Cyclopterus; and we have in the three groups, represented by Coitus, 



brought about by the modification of the rays in a manner common to the several genera, 

 and not by any marked anatomical difference in the structure of the same fins in Coitus, 



as of generic value." (PutnainTProcTAiu* Ass" ~A.&v"ScL 1873,' 3370 



