ICHTHYOLOGICAL COLLECTIONS OF THE ALBATROSS. 429 
Color: Olivaceous above, light yellow with more or less silvery on sides of head 
nd belly. Traces of four saddle-shaped bands of darker color reaching across back 
ind below lateral line; one under first dorsal, two under second dorsal, and one on 
back of caudal peduncle. More or less of the outer portion of gill-membranes black, 
edged posteriorly with white. Gill-cavity black and roof of mouth dusky. Perito- 
neum silvery grayish. Dorsal and caudal fins indistinctly blotched with black, the 
blotch on the dorsal corresponding more or less closely to the bars on the back. A 
large black blotch on upper part of pectoral and on sides of body just above axil. 
Several specimens, from 68 to 155 mm. in length, taken from stations 3215, 3222, 
$223, 3224, 3225, 3309, and 3339, south of Sannak and north of Unalaska Island, in 
43 to 138 fathoms. 
72. Triglops xenostethus sp. nov. (Plate 29.) 
_ Differing widely from other species of Triglops in the investment of the breast, 
which is without trace of folds and is covered by small, closely imbricated spinous 
8 ales, not arranged in series. Inall other species of the genus the breast is crossed 
by a few cutaneous folds similar to those on sides of body. In T. xenostethus the 
si des of the abdomen are covered similarly to the breast, but the scales are arranged 
in more or less evident series, some of which can be traced above into the cutaneous 
folds. The body is not slender, the lateral folds are not very numerous, the scales 
n head and on upper part of body are very coarse. 
_ Dorsal x1-23; anal 23; pectoral 16; ventral1,3; lateral line 43; branchiostegals 6. 
Body Euaeea. as in T. iingeli. rather heavy at Shoatioes tapering gradually back- 
E> its depth 6 in length. Caudal peduncle slender, its least depth 4% in its 
Eneth, which is two-thirds length of head. 
i, The upper profile of head descends rapidly in a strong convex curve, unbroken to 
tip of snout. Mouth large, maxillary reaching vertical from middle of pupil, 2} in 
head. Eye 3) in head, snout3?. Interorbital space very narrow, one-fifth orbit, the 
orbital rim not elevated, the space neither grooved nor tidged. A pair of broadly 
rounded occipital ridges, not ending in spines. Nasal spines short and inconspic- 
uous, a broad depression behind them. Preopercle with four ill-defined projections 
between the mucous pores, but without definite spines Gill-membranes as usual. 
Pectoral rays apparently all simple, the lower ones thickened. Prickles covering 
dorsal region and back and sides of head unusually coarse and fewin number. The 
‘usual series of enlarged prickles along either side of base of dorsals. Folds below 
lateral line numerous, very oblique, two or three to each plate of the lateral line. 
‘On sides of abdomen anteriorly to vent the prickly scales bordering the folds form 
‘a dense mass in which the linear arrangement is still faintly visible. The breast is 
‘covered with a very dense patch of similar scales still more closely crowded. The 
lower part of cheeks and opercles and the preorbital region naked. Very light 
‘grayish above, with the usual four crossbars, those under soft dorsal and on back of 
‘tail broader than usual. Under parts whitish, becoming bright silvery on breast 
and belly. A series of irregular silvery white blotches along lower margins of the 
‘dorsal crossbars. Pectorals dusky at base of upper and lower rays, with two convex 
‘dusky bars on distal half. Snout and cheeks more or less dusky. 
_ Asingle specimen 66 mm. long, from station 3220, north of Unalaska Island, at a 
depth of 34 fathoms. 
ELANURA gen. nov. 
t 
Most nearly related to Prionistius, from which it differs in the presence of a series 
ad enlarged scutes along each side of base of dorsal fins, in the presence of spinous 
‘cross folds on the breast, and in the very deeply forked caudal fin. From Triglops 
it differs in the forked caudal, in the great elongation of the body, and in the 
lengthened dorsal and anal fins. It agrees with Triglops and Prionistius in all other 
mportant structural details, including the exserted, more or less produced lower 
ectoral rays. 
