ICHTHYOLOGICAL COLLECTIONS OF THE ALBATROSS. 471 
LYCONEMA gen. nov. (LYCODID.) 
Generic characters as in Lycodes, but the lower jaw covered with a dense mass of 
slender filaments or barbels, between which can be seen the mucous pores of the 
mandible. In /luocetes the mandible is provided with a series of hollow tubes, which 
are doubtless the produced margins of the pores. 
Type, Lyconema barbatum sp. nov. 
75. Lyconema barbatum sp.nov. (Plate 35.) 
A dense fringe of filaments covers the entire under surface of lower jaw, extending 
to behind angle of mouth. A series of filaments is found also laterally on the throat, 
and a few scattering ones are sometimes present on the branchiostegal membranes, 
Upper jaw without barbels. Body slender, the depth 114 in the length; head 6} in 
length. Upper jaw overlapping the lower. Mouth small, the maxillary reaching 
vertical from front of pupil, 5 in head. Teeth all conical, none of them much 
enlarged. Those in lower jaw in a patch or irregular double series, narrowing to a 
single series laterally. In upper jaw there is a single series, the teeth of which 
increase in size toward the middle line, the middle teeth being almost canine-like. 
Behind the latter is found a short inner series of smali teeth directed backward. 
Teeth on vomer and palatines in single series. 
Gill-slits continued forward to slightly beyond bases of ventrals and to the level 
of lower edge of base of pectorals. Width between gill-slits one-half diameter of 
eye. Pseudobranchie well developed. Eye 34} in head. Snout 4}. Posterior line 
of occiput midway between origin of dorsal and front of pupil or front of eye. 
Origin of anal fin at end of first third of length of body. 
Ventrals very short, one-half to two- fifths diameter of orbit. Pectorals broad, 
with the posterior edge emarginate, some of the upper and the lower rays longer 
than the intermediate ones. Length of fin 1,4; in head. 
Dorsal 103; anal 91; each counted to middle of caudal; pectoral 15. 
Scalesshowing traces of definite arrangement in series, widely separated anteriorly, 
becoming crowded toward end of tail. They are continued up on the vertical fins, but 
are absent on head, on anterior half of nape, and on the pectoral fins. The lateral 
line is very faintly shown, and only for a short distance behind head, where its 
course is obliquely downward. The usual series of mucous pores present, but not 
conspicuous. 
In spirits this species has an olive-brown ground color, becoming white on under 
‘side of head and on abdomen. A series of eight or nine brown spots half as large as 
eye along middle of sides, those posteriorly continued downward onto the base of 
‘the anal, the last two or three reaching the edge of the fin and there developing into 
‘intense black blotches. A similar series of smaller spots corresponding in position 
ito those just described occurs along the base of dorsal. They are also continued as 
‘faint bars on the fin, at the margin of which they each develop a black blotch, those 
| posteriorly wider and more intense. An intermediate series of spots alternates with 
‘the two just described. An elliptical jet-black spot occupies the greater part of 
‘eaudal fin and is narrowly margined all around with white. The peritoneum is 
jet-black, the mouth and gill-cavities white. 
Twelve specimens, the longest 150 mm., from station 3129 (lat., N. 36° 39’ 40’; long., 
“W. 122° 01’; depth 204 fathoms). 
76. Maynea brunnea Bean. 
Station 3188; depth 316 fathoms. The teeth on the palatines are in a single series 
instead of a wide band, as stated in the original description. 
77. Lycodapus fierasfer Gilbert. Station 3202; depth 382 fathoms. 
78. Lycodapus dermatinus sp. noy. (Plate 35.) 
Very similar to L. fierasfer, but the head, body, and fins covered with a thick, loose 
skin which contains numerous pores or openings for the mucous canals. One series 
of these runs along the middle of sides and forms the lateral line; it rises anteriorly 
> 
