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 b^^t two upwardly directed cusps. In 

 adults it is the most massive found in the genus, and is furnislied with four upwardly 

 directed barbs, the basal one of which may be minute or rudimentary. 



52. Chitonotus megacephalus Lockingtou. 



Stations 311."), 3176, and 3179 ; depths 30 to 43 fathoms. Two specimens have a small 

 preopercular spine, with one terminal and two upwardly-directed points. The mouth 

 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 AGONID^. 



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. Odoiitopyxis trispinosus Lockington. Stations 3129, 3137, 3152, 3153, 3154, 



3155, 3157, and 3166; 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; 

 dejjths 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. 



Family LIPARIDiE. 



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, i^, and 4| 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. Paraliparie 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 at all overlapping the horizontal mouth; the cheek vertical. Occiput .and 

 nape not conspicuously s\\ollen. Lower jaw included. Maxillary reaching vertical 

 behind middle of pupil, 2^ in head. P^ye large, 3 iu head. Bony interorbital space 5. 



