ICHTHYOLOGICAL COLLECTIONS OF THE ALBATROSS. 469 
51. Icelinus filamentosus Gilbert. 
Stations 3113, 3125, 3129, 3146, 3161, 3183, 3184, and 3209; depths 62 to 204 fathoms. 
The preopercular spine increases disproportionately with age. In specimens 2 to 3 
inches long it is short and slender, with but two upwardly directed cusps. In 
adults it is the most massive found in the genus, and is furnished with four upwardly 
directed barbs, the basal one of which may be minute or rudimentary. 
52. Chitonotus megacephalus Lockington. 
Stations 3115, 3176, and 3179; depths 30 to 43 fathoms. Two specimens have asmall 
preopercular spine, with one terminal and two upwardly-directed points. Themouth 
does not extend to opposite posterior border of orbit. 
53. Leptocottus armatus Girard. Station 3097; depth 12 fathoms. 
54. Oligocottus analis Girard. Monterey. 
55. Oligocottus maculosus Girard. Monterey. 
56. Radulinus asprellus Gilbert. Stations 3103, 3171, 3172, 3173, 3175, and 3194; 
depths 52 to 92 fathoms. 
Family AGONIDZ. 
57. Brachyopsis verrucosus Lockington. Stations 3152, 3155, 3182; depths 36, 35, 
and 11 fathoms. 
58. Brachyopsis xyosternus Jordan & Gilbert. Station 3182; depth 11 fathoms. 
59. Odontopyxis trispinosus Lockington. Stations 3129, 3137, 3152, 3153, 3154, 
3155, 3157, and 5166; depths 11 to 47 fathoms, excepting station 3129 (204 
fathoms). 
60. Xenochirus triacanthus Gilbert. Stations 3103, 3113, 3114, 3145, 3156, 3157, and 
3171; depths 47 to 76 fathoms. 
61. Xenochirus pentacanthus Gilbert. Stations 3161, 3189, 3191, 3193, and 3204; 
depths 160 to 218 fathoms. 
62. Xenochirus latifrons Gilbert. 
Stations 3103, 3129, 3147, 3156, 3161, 3174, 3189, 3193, 3194, 3204, 3206, and 3209; 
depths 50 to 218 fathoms. The gill-membranes have always a distinct free edge 
except at middle line, where a frenum joining middle of membrane to isthmus 
may come out to the very margin. Plates on cheeks are always absent, and other 
‘diagnostic marks are constant. 
FPamily LIPARIDA. 
63. Careproctus melanurus Gilbert. 
Stations 3112, 3186, 3189, and 3199; depths 218 to 328 fathoms. ‘Three specimens 
from station 3112 are graduated in size, measuring 65, 78, and 95 mm. The disk 
becomes relatively smaller with age, measuring 4, 44, and 43 mm. The position 
remains the same, as does that of vent. 
| 64. Paraliparis cephalus Gilbert. 
Stations 3112 and 3126; depths 296 and 456 fathoms. 
65. Paraliparis dactylosus sp. nov. (Plate 34.) 
Very close to P. ulochir, but with the upper insertion of the pectoral much lower, 
opposite the lower margin of pupil, and the head and body much more slender and 
elongate. Shape of head much the same as in P. ulochir, the snout broadly rounded, 
slightly if atall overlapping the horizontal mouth; the cheek vertical. Occiputand 
nape not conspicuously swollen. Lower jawincluded. Maxillary reaching vertical 
behind middle of pupil, 2? in head. Eye large,3 inhead. Bony interorbital space 5. 
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