120 
Fishery Bulletin 106(2) 
Table 4 
Counts of dorsal-fin spines, soft-dorsal-fin rays, anal-fin rays, and total and unbranched pectoral-fin rays in Sebastes aleutianus 
(rougheye rockfish) and Sebastes melanostictus (blackspotted rockfish). Lower West Coast = waters off the coast of British Colum- 
bia, Washington, Oregon, and California. Western Pacific Ocean = waters off the coast of the Kuril Islands and Japan. 
Dorsal-fin spines 
Total left pectoral-fin rays 
12 
13 
14 
n 
17 
18 
19 n 
Sebastes aleutianus 
Sebastes aleutianus 
Lower West Coast 
29 
1 
Lower West Coast 
30 
Gulf of Alaska 
1 
63 
2 
Gulf of Alaska 
2 
55 
7 
Bering Sea and Aleutian Is. 
18 
Bering Sea and Aleutian Is. 
9 
3 
Total 
1 
110 
3 
114 
Total 
2 
94 
10106 
Sebastes melanostictus 
Sebastes melanostictus 
Lower West Coast 
17 
1 
Lower West Coast 
16 
1 
Gulf of Alaska 
1 
80 
4 
Gulf of Alaska 
2 
72 
12 
Bering Sea and Aleutian Is. 
2 
53 
Bering Sea and Aleutian Is. 
4 
50 
4 
Western Pacific Ocean 
24 
Western Pacific Ocean 
20 
Total 
3 
174 
5 
182 
Total 
6 
158 
17181 
Dorsal-fin rays 
Unbranched left pectoral-fin rays 
12 
13 
14 
15 
n 
4 5 
6 
7 
8 
9 10 n 
Sebastes aleutianus 
Sebastes aleutianus 
Lower West Coast 
11 
19 
Lower West Coast 
1 
3 
20 
4 
Gulf of Alaska 
1 
36 
30 
Gulf of Alaska 1 1 
5 
9 
39 
4 
Bering Sea and Aleutian Is. 
5 
13 
Bering Sea and 
1 
5 
4 
2 
Total 
1 
52 
62 
115 
Aleutian Is. 
Sebastes melanostictus 
Total 1 1 
7 
17 
63 
10 99 
Lower West Coast 
5 
13 
Sebastes melanostictus 
Gulf of Alaska 
32 
53 
Lower West Coast 1 
5 
9 
1 
Bering Sea and Aleutian Is. 
17 
37 
1 
Gulf of Alaska 
10 
58 
13 
Western Pacific Ocean 
6 
14 
4 
Bering Sea and 1 
9 
38 
10 
Total 
60 
117 
5 
182 
Aleutian Is. 
Western Pacific Ocean 
8 
10 
2 
Anal-fin rays 
Total 2 
32 
115 
25 1 175 
6 
7 
8 
n 
Sebastes aleutianus 
Lower West Coast 
1 
29 
Gulf of Alaska 
1 
59 
6 
Bering Sea and Aleutian Is. 
10 
2 
Total 
2 
98 
8 
108 
Sebastes melanostictus 
Lower West Coast 
17 
1 
Gulf of Alaska 
2 
75 
7 
Bering Sea and Aleutian Is. 
53 
5 
Western Pacific Ocean 
20 
Total 
2 
165 
13 
180 
Body robust, depth at pelvic-fin base 31.6-42.6 (38.1) 
% SL; relatively deep at anal-fin origin 23.5-31.9 (28.0) 
% SL; profile of dorsal margin of head gently sloping 
from dorsal-fin origin to snout, dorsal rim of orbit in- 
cluded in lateral margin of frontals. Mouth large, with 
posterior end of maxilla extending between pupil and 
posterior rim of orbit to just beyond the posterior rim 
of the orbit; maxilla length 16.9-21.1 (19.9) % SL; sym- 
physeal knob moderately pronounced with blunt tip, 
lower-jaw length 20.4-27.2 (25.0) % SL; mandibular 
pores large to moderate in size. Cranial spines strong, 
often rough. Nasal, preocular, supraocular, postocular, 
tympanic, coronal, parietal, and supratemporal spines 
invariably present; all major head spines strong, ex- 
cept for coronal spines, which are weak; supraocular 
and postocular spines and parietal ridge often rough; 
