ICHTHYOLOGICAL COLLECTIONS OF THE ALBATROSS. 443 



the latter not projecting beyond the mouth. Nape not elevated. Mouth terminal 

 at lower side of snout, slightly obli(i[ue, its lateral cleft about two-thirds its width. 

 Lower jaw shutting within the upper. The angle of mouth reaches a vertical midwaj- 

 between front of eye and front of pupil. Teeth lanceolate, acute, without trace of 

 basal cusps. 



Head 5 in length; greatest depth (at occiput) 6. Diameter of eye equals length 

 of snout, 3| in head, Ij in inttTorbital width. Gill-opening a narrow slit entirely 

 above base of pectorals, its length three-fourths diameter of eye. The opercle is 

 produced posteriorly into a rounded lobe, which overlaps the gill-opening. Disk 

 oblong, of moderate size, placed under the posterior part of head behind the eyes, 

 forming in alcoholic specimens a very deep, cup-shaped depression with incurved 

 edges. Diameter of disk about equaling that of eye ; disk separated from vent by 

 half its diameter. 



Upper pectoral lobe reaching origin of anal fin ; the rays of lower lobe elongate 

 and extensively free, longer than upper lobe and reaching to or nearly to front of 

 anal. The intermediate rays are not as short as in C. reinhardti, and hardly form a 

 separate division of the fin, the rays being gradually and tiniformly shortened from 

 above downward to origin of lower lobe. Pectoral rays 29. Dorsal beginning 

 immediately behind the head. Distance from tip of snout to origin of anal 3| in 

 length. Series of conspicuous mucous pores on head, as in C. reinhardti. Color in 

 spirits, dusky; the tip of snout, under side of head, opercles, abdomen, and posterior 

 portion of vertical fins black; inside of mouth and gill-cavity dusky; peritoneum 

 black. 



Five specimens, the longest 85 mm., from station 3338, south of Alaska Peninsula; 

 depth 625 fathoms. 



Named in honor of Prof. Robert Collett, the distinguished author of the Fishes of 

 the Norwegian North Atlantic Expedition. 



96. Careproctus phasma sp. nov. 



Closely related to Careproctus spectrum Bean, from the same region ; differing in the 

 much larger sucking disk and the narrower gill -slit, the latter confined to area above 

 base of pectorals, its anterior margin formed of the broadly and evenly rounded 

 opercular lobe. Head broad and flat above, subquadrate, with nearly vertical 

 cheeks. Snout very obtuse, broadly rounded, much blunter than in C. spectrum, very 

 slightly overlapping the mouth. Width of snout 1| in length of head. Mouth very 

 broad, somewhat obliifue, reaching a vertical from slightlj' behind front of eye, its 

 width more than twice the amount of lateral cleft taken axially. Teeth minute, 

 acute, in a moderate band in each jaw, arranged in oblique series within the band. 

 Nostril opening in a short but conspicuous tube, the tube absent and the pore 

 smaller in C. spectrum. Eye 4 in head, 2 in total iuterorbital width. Mucous pores 

 small. Gill-slit short, slightly less than diameter of orbit, overlapped for almost 

 its entire extent by the broadly rounded opercular flap, its inferior margin attached 

 to base of upjjer pectoral ray. 



Sucking disk comparatively large, much larger than in C. -spectrum, IJ times the 

 diameter of the eye, 3^ in head. It is very nearly round, the transverse diameter 

 equaling or slightly exceeding the longitudinal diameter. Vent immediately behind 

 edge of sucking disk. Anal papilla slender, half as long as diameter of eye. Pec- 

 toral fin very broad, barely reaching front of anal, the lower rays equaling the 

 upper, extensively free at tip ; 34 rays in the pectoral fin, the lower lobe containing 

 8 or 9. Dorsal beginning behind the gill-opening at a distance equaling diameter of 

 eye, the fin with 53 rays. Skin exceedingly soft, thick, and lax in the alcoholic 

 specimen, forming folds on head and body and concealing the rays of the fins. Color 

 uniform white in spirits. 



Two specimens, 80 to 85 mm. long, from Bristol Bay, stations 3254 and 3256 ; depths 

 46 and 49 fathoms. 



