ICHTHYOLOGICAL COLLECTIONS OF THE ALBATROSS. 455 
Three specimens, 113 to 166 mm. long, from stations 3253 and 3254 in Bristol Bay, 
in 36 and 46 fathoms. 
129. Aprodon corteziana Gilbert. 
One specimen from station 3349, off the coast of northern California; depth 239 
fathoms. 
The depth in this species varies from 74 to 9, the head from 44 to 44 in length. 
130. Maynea pusilla Bean. 
A few small specimens from north of Unalaska, at stations 3224, 3227, 3330, and 
3331; depth 121 to 351 fathoms. 
131. Gymnelis viridis (Fabricius). 
Two specimens from between tide marks at Unalaska, one from station 3256 in 
Bristol Bay; depth 49 fathoms. 
132. Lycodapus fierasfer Gilbert. (Plate 32.) 
Several specimens from station 3324, in Bering Sea, north of Unalaska Island ; depth, 
109 fathoms. The statement in the original description (Proc. U.S. Nat. Mus. 1890, 
108), “‘ventrals narrow,” etc., applies instead to the pectorals, the yentrals being 
absent in this genus. 
133. Lycodapus extensus sp. nov. 
An extremely slender elongate form, with head smaller than in L. fierasfer, but 
otherwise resembling that species more than L. parviceps. The head is 6? in length, 
the depth of body 154. Gill-openings as in L. fierasfer, extending well above base of 
ventrals. Skin thin, the mucous pores inconspicuous, evident on mandible and 
along margin of preopercle. Upper profile of head longitudinally concave, shaped as 
in fierasfer, but slenderer, its depth greater than that of body. Mouth oblique, the 
maxillary reaching vertical from middle of eye, 2+ in head. Teeth in narrow bands 
in both jaws, tapering laterally to single series. Vomerine teeth more numerous 
thanin L. parviceps or L. fierasfer, small, not canine-like, in a single series. Palatine 
teeth wanting, as in some individuals of L. fierasfer. Eye4}in head. Interorbital 
space lt} in eye. Snout 3? in head. Occiput midway between front of dorsal and 
anterior nostril. Pectorals slenderer and longer than in fierasfer, 22 in head. Head 
and trunk contained 2% times in tail. Dorsal 96, the extreme end of the tail wanting. 
Color, light brownish, the black peritoneum visible through the skin of the abdomen. 
Mouth and gill-cavity largely dusky. A narrow dark-brown streak along base of 
dorsal and anal, occupying, toward tip of tail, the entirc height of both fins. 
A single specimen, 92 mm. long, from station 3324, north of Unalaska Island; depth 
109 fathoms. 
134. Lycodapus parviceps sp. nov. 
Similar to L. fierasfer, differing in the much smaller head, longer, slenderer body, 
the thicker skin with more evident mucous pores, and in the more restricted gill- 
openings. Head short, 7? in length (5} to 53 in fieracfer); depuh 11. Upper profile 
of head nearly straight, not longitudinally concave, as in jierasfer. Head deeper and 
narrower, the snout less spatulate. Skin thicker. A conspicuous series of pores on 
mandible and along preopercular margin. Gill-slit very oblique, as in /fierasfer, 
extending anteriorly as far as vertical from eye, the membranes then narrowly 
united, free from the isthmus except at extreme front. The gill-slit is superiorly 
much more restricted than in fierasfer, not extending above base of pectorals, 
while in the latter it extends above them for two-thirds diameter of eye. 
Mouth oblique, the maxillary reaching vertical from middle of eye, 24 in head. 
The jaws are even at tip, the mandible slightly included laterally. Mandibular teeth 
in a moderate band anteriorly, the inner series enlarged, narrowing posteriorly to a 
single row. Premaxillary teeth of uniform size, in a narrow band throughout. 
