ICHTHYOLOGICAL COLLECTIONS OF THE ALBATROSS. 437 
, Color, light grayish or brownish, pale below. A bluish-black stripe from rostral 
‘spines to front of orbit. Suborbital, preopercle, and opercle with numerous dark 
/spots. A dark blotch on the side, opposite middle of first dorsal; a faint dark bar 
under the anterior and a similar one under posterior part of second tered Both dor- 
‘sals with indefinite oblique dark bands. Pectorals dark except the lower proximal 
‘part, with narrow bars of black; ventrals light in females, dark in males; anal dark 
posteriorly; caudal dark, faintly barred. 
| Stations 3219, 3225, 3226, 3227, 3255, 3256, 3257, 3258, 3263, 3269, 3279, 3282, 3309, 
, 3311, 3313, and 3330, located on both sides of the Alaskan Peninsula and both north 
j and south of the Aleutian Chain; depth, 16 to 351 fathoms. 
(85. Odontopyxis leptorhynchus sp. nov. 
‘ Very close to O. frenatus, with which it agrees in the arrangement of plates, the 
‘spines on head, and the barbels. It is distinguishable at once by the elongate 
“glender snout and differs also in the following numerous details: Body somewhat 
‘broader and more depressed, its greatest depth a little less than two-thirds its 
‘ greatest width, which occurs across preopercular spines. The body narrows rapidly 
{backward to below spinous dorsal, as in young O. frenatus of the same size. Compared 
‘with O. frenatus of the same size, the plates on body are much less spinous, the 
‘superior and inferior lateral series and the ventral series in some specimens bearing 
‘spines on a few of the anterior plates only; the spines of dorsal series are lower. 
‘Five plates before dorsal, 10 under spinous dorsal, 2 between dorsals, 7 under second 
dorsal, and 16 on caudal peduncle. The inferior lateral ridges rise anteriorly, greatly 
‘ constricting the lateral face under anterior part of spinous dorsal. It then descends 
‘slightly and becomes almost or quite obsolete, the series of plates ending behind 
‘the upper pectoral rays. In O, frenatus the constriction of the lateral face does not 
‘ occur, the ridge is strongly marked anteriorly, and ends below middle of pectoral 
‘base. In O. leptorhynchus we have therefore a much narrower interval between the 
‘anterior ends of the upper and the lower lateral series. This interval is occupied 
_ by but 3 plates, arranged in a series, decreasing in size backward. 
The upper preopercular and the humeral spines are much larger than in 0. 
_frenatus, the former greatly overpassing the second spine. The rostral spines are 
similar, but the terminal plate is roughened but not serrate, the posterior spine not 
detached. Snout greatly produced into a narrow triangular piece, which overpasses 
the snout for a distance equaling two-thirds diameter of orbit in a specimen 100 mm. 
long. In specimens of 0. frenatus of this length the ends of the rostrum can barely 
_be seen from below. A few prickles present on upper side of rostrum, and the 
usual series above pupil. Minutely serrated ridges on sides of snout, and one below 
eye. Noprickles on top or sides of head. Plates on branchiostegal membranes and 
on gular region smaller and more numerous than in frenatus. Twenty plates on 
breast, without spines, or the young with very small ones. 
Head 4 in length. Snout 2% in head inaspecimen 100mm. long. Eye 34, equaling 
length of maxillary. Interorbital width two-thirds eye. Branchiostegal mem- 
branes broadly united, extensively free laterally, joined to isthmus mesialiy to 
_ extreme posterior margin, or leaving a very narrow margin free. Teeth present on 
jaws and on vomer, none on palatines. Dorsals vi to vilI-6 or 7; anal 6 or 7; 
pectoral 14; ventral 1,2. Pectorals long, reaching to or beyond middle of spinous 
' dorsal, as long as snout and eye. Ventrals equaling length of snout. 
Color darker than in O. frenatus, the under parts unmarked anteriorly, dotted 
_ posteriorly with brown; upper parts dark brown in spirits, with six or seven more 
or less distinct black bands, which are margined narrowly with lighter. A black 
streak forward from eye, and several black spots and blotches on sides of head. 
~ Caudal blackish. Soft dorsal dusky, obscurely marked with lighter; spinous dorsal 
—< 
black, sharply blotched with pure white. Ventrals and lower pectoral rays white, 
the upper part of pectorals with obscure bars of black. 
A few specimens from stations 3215, 3219, 3222, 3229, 3259, 3265, and 3267, north and 
south of the Alaskan Peninsula, in 32 to 59 fathoms. 
> 
