ICHTHYOLOGICAL COLLECTIONS OF THE ALBATROSS. 459 
Dorsal beginning vertically above base of pectorals; the second spine extremely 
long and slender, smooth basally, the terminal half rather strongly toothed. It 
becomes very slender toward the tip, and terminates in a long membranous fila- 
ment. In one specimen it exceeds length of head, in the others it equals five-sixths 
that length. Length of base of first dorsal equaling one-third length of head. 
Interspace between dorsals short, two-fifths to three-fourths length of snout. Pec- 
torals very long and slender, equaling the head without the snout. Outer ventral 
rays very long and filamentous, equaling length of head. Vent immediately in 
advance of anal origin. Scales rather thin, those on back and sides with about five 
diverging ridges, each of which bears a number of short rigid spinules directed very 
obliquely backward, the posterior projecting but little beyond the margin of the 
scale. Eight or nine scales in an oblique series between the middle of first dorsal 
and the lateral line. 
Dorsal 11, 12 to 14; pectoral 20 to 22; ventral 9 or 10. 
Dark brown, the fee gill-membranes, lips, nostrils, and under side of snout black. 
Anterior part of mouth and lining of gill-cavity purple. Peritoneum blackish 
brown. 
Three specimens, 520 to 550 mm. long, were dredged in 1,588 fathoms off Queen 
Charlotte Island, at station 3342. 
Family PLEURONECTIDZ. The Flounders. 
144. Citharichthys sordidus (Girard). 
At stations 3351 and 3352 off northern California; depths 26 and 51 fathoms. 
145. Citharichthys stigmeus Jordan & Gilbert. 
At station 3350, near Point Reyes, Cal.; depth 75 fathoms. 
146. Hippoglossus hippoglossus (Linnzeus). Halibut. 
A few small specimens dredged at stations 3218, 3230, 3238, and 3239; depths 3} to 
41 fathoms. Taken with hand lines on all the cod banks. 
147. Atheresthes stomias Jordan & Gilbert. <Arrow-toothed Halibut. 
At stations 3215, 3216, 3218, 3221, 3223, 3224, 3225, 3227, 3259, 3263, 3264, 3267, 3321, 
3324, 3331, 3332, and 3339, located north and south of the Aleutian Islands and in 
Bristol Bay; depths 32 to 406 fathoms. 
148. Bopsetta jordani (Lockington). California Sole. 
Station 3351, near Point Reyes, Cal.; depth 51 fathoms. 
149. Hippoglossoides elassodon Jordan & Gilbert. 
North and south of the Aleutian Islands, and Bristol Bay; stations 3216, 3217, 3218, 
3225, 3257, 3259, 3284, 3310, 3311, 3313, 3314, 3321, 3323, and 3334; depths 25 to 85 fathoms. 
In four specimens we find the following fin formule: D.86,A. 65; D. 87, A. 69; D. 79, 
A. 67; D. 84, A. 63. 
150. Lyopsetta exilis (Jordan & Gilbert). 
At station 3351, off northern California; depth 51 fathoms. 
151. Lepidopsetta bilineata (Ayres). 
Taken abundantly at Unalaska and Chernoftski harbors, at Herendeen Bay, and 
Hagemeister Island, and at stations 3213, 3214, 3215, 3217, 3218, 3219, 3222, 3232, 3233, 
3235, 3237, 3238, 3239, 3242, 3244, 3245, 3246, 3248, 3249, 3250, 3251, 3252, 3258, 3259, 3264, 
3265, 3266, 3267, 3268, 3269, 3270, 3271, 3272, 3273, 3275, 3278, 3279, 3280, 3282, 3283, 3284, 
3285, 3286, 3287, 3289, 3290, 3291, 3292, 3293, 3294, 3295, 3298, 3299, 3300, 3301, 3302, 3303, 
and 3323; depths 44 to 70 fathoms. This species is variable in the height of the 
anterior arch to the lateral line, which is sometimes strong, sometimes little marked. 
