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ICHTHYOLOGICAIL COLLECTIONS OF THE ALBATROSS. 467 
Dorsal spines very slender, the fourth the longest, or the fourth and fifth equal, 
contained 23 to 24 in length of head. Dorsal very deeply notched, the twelfth spine 
but one-fourth as long as the longest, and barely connected at base with the elev- 
enth. Soft dorsal scarcely as high as the spinous. First anal spine very short, the 
second very slightly stronger than the third, and nearly or quite as long measured 
from base, its length 3} in head. The second spine appears much shorter than the 
third when the fin is declined. Longest soft ray of anal 2}in head. Caudal deeply 
notched. Anus anterior in position, midway between first anal spine and base of 
ventrals; the tips of the ventrals extend to or beyond it, and the pectorals extend 
beyond tips of ventrals. 
D. xi, 14 or 15; A. 111, 9 or 10. Pores in lateral line, 54 to 58. 
Scales small, everywhere ctenoid, entirely covering head, including maxillaries, 
mandibles, and snout, except a triangular area on top of snout, beneath which lie the 
premaxillary spines. Color as in S. goodei, dusky olive above, bright silvery on sides 
of head and body and below; probably with some red in life. Fins unmarked. 
Mouth and gill-cavities pure white, the peritoneum jet black. 
Specimens ranging in size from 165 mm. to 215 mm. from stations 2935, 3103, and 
3114; depths 62 to 124 fathoms. 
Named for David Starr Jordan, president of the Leland Stanford Junior University, 
the most successful worker in the genus Sebastodes. 
39. Sebastodes saxicola (Gilbert). 
Stations 3103, 3104, 3113, 3114, 3115, 3125, 3129, 3161, 3183, 3184, 3189, 3192, 3194, 3196, 
3197, 3206, 3207, 3208, and 3209; depths 43 to 391 fathoms. 
Gill-rakers constantly 10-+22 or 23. The second anal spine varies somewhat in 
length, always extending slightly beyond tip of third anal spine when the fin is 
declined, usually not reaching tips of soft anal rays, its length 2} to 24 in that of 
head. Young specimens have faint dark bars occupying usual position; a jet-black 
blotch on middle of soft dorsal with a light streak below it separating it from the 
back. 
40. Sebastodes diploproa (Gilbert). 
Stations 3105, 3129, 3161, 3170, 3188, 3189, 3191, 3193, 3195, 3196, 3197, 3204, and 
3208; depths 160 to 316 fathoms, excepting station 3197 (77 fathoms), from which 
there are 11 young-specimens 2 to 3 inches long, supposed to belong to this species. 
All these show the characteristic silvery-white coloration on lower half of sides. 
There are traces of dark bars bn the sides; one on nape and under front of spinous 
dorsal; two on sides diverging downward from behind middle of spinous dorsal; 
one under middle of soft dorsal. There are corresponding dusky marks on the fins, 
that on soft dorsal being a distinct blackish blotch. The projecting lobes of the 
premaxillaries are evident in the youngest specimens. Fins and spines of head 
about as in adults. 
The gill-rakers in this species are 9 or 10 4-23 to 25. The maxillary is 2} to 2} in 
head. The interorbital space is very slightly more than one-half eye. The ventral 
fins extend nearly to vent. Pectorals 13 in head. There is considerable variation in 
the direction of the upper preopercular spines, which are directed sometimes straight 
forward, sometimes obliquely forward and downward. Lower preorbital spine 
directed obliquely downward and backward. 
41. Sebastodes aurora (Gilbert). 
Stations 3195, 3199, and 3205; depths 233 to 252 fathoms. Gill-rakers very large 
and thick, comparatively few in number, 7 on vertical limb, and 14 or 15 movable 
ones and about 3 tubercles on horizontal limb of gill-arch. The coronal spines are 
an inconstant feature of this species, absent nearly as often as present. In one 
specimen a slight prominence on one side indicates its position. 
42. Sebastodes rhodochloris (Jordan & Gilbert). Flyfish. 
Stations 3183 and 3189; depths 162 and 218 fathoms. Gill-rakers 6+ 18. 
