368 BULLETIN OF THE UNITED STATES FISH COMMISSION. 
Coregonus labradoricus. 
[Eagle Lakes, November 23, 1901.] 
Total length in 
millimeters. 
Head. 
Depth. 
Eye. 
Snout. 
Maxillary. 
6 
'S 
a 
S 
Scales. 
| Dorsal. 
Anal. 
Height of dorsal 
in head. 
Length of anal in 
head. 
Pectoral in head . 
* 
O) 
a? 
Teeth on tongue. 
Longest gillraker 
in eye. 
Number of gil 1 - 
rakers. 
Whole number of 
gillrakers on 
each side. 
435 
4. 75 
4. 22 
5. 33 
4 
3.63 
2. 75 
10-87-8 
11 
12 
1.31 
1.81 
1.31 
? 
Few . 
2.14 
11+15; 10+15 
25; 25 
420 
4.93 
4.97 
5 
3. 94 
3. 57 
2. 58 
10-87-8 
9 
11 
1.29 
1.70 
1.22 
<f 
..do .. 
2.14 
9+13: 9+13 
22; 22 
4 
4. 69 
3. 61 
5. 40 
4.05 
3.24 
2. 61 
10-83-8 
n 
14 
1.35 
1.87 
1.30 
$ 
..do .. 
2.14 
9+17; 9+17 
26; 26 
380 
4.44 
3. 66 
4.80 
4.80 
3.60 
2. 66 
10-87-8 
u 
12 
1.20 
1.71 
1.24 
? 
..do .. 
2.30 
9+15; 10+15 
24; 24 
[Debseoneag Lake, August 1, 1901.] 
3.75 
4.63 
4.15 
4. 92 
3.83 
3. 28 
2.46 
10-82-9 
11 
12 
1.13 
1.81 
1.13 
9 
(T) 
2.37 
9+16; 9 + 17 
25: 26 
3. 80 
4. 35 
4 
5.57 
3. 90 
3.39 
2. 60 
10-85-9 
11 
13 
1.28 
2. 05 
1.50 
Y 
(?) 
(?) 
11+17; 11 1-16 
28; 27 
3.30 
4.30 
3.83 
4.81 
3.94 
3.09 
2. 60 
10-84-9 
H 
13 
1.30 
1.71 
1 . 32 
? 
Few . 
2. 70 
11 + 17; 11 + 17 
28; 28 
3. 60 
4.76 
4.42 
5.00 
3.82 
3.25 
2.70 
10-82-8 
11 
13 
1.14 
1.62 
1.30 
cf 
CO 
2.33 
10+15; 10 + 16 
25; 26 
Comparative average measurements of Coregonus Stanley i and Coregonus labradoricus {8 specimens of each). 
Comparative measurements of young Coregonus labradoricus and Coregonus stanleyi of the same length. 
Species. 
Total length in 
millimeters. 
Length without 1 
tail. 
E 
Depth. 
6 
W 
Snout. 
Maxillary. 
Mandible. 
Scales. 
j Dorsal. 
Anal. 
Height of dorsal. 
! 
Height of anal. 
i 
53 
Li 
O 
o 
Longest gillraker 
in eye. 
Gillrakers. 
C. stanleyi 
230 
205 
4.61 
4. 18 
4. 42 
4.20 
3. 23 
2.33 
10-89-8 
11 
13 
1 . 23 
1.61 
1.35 
1.9 
29; 29 
((. labradoricus . . . 
230 
190 
4.75 
4.75 
4.21 
4.44 
3. 23 
2. 43 
10-83-8 
11 
.13 
1.17 
1.02 
1 . 29 
2. 37 
25; 25 
C. stanlevi 
235 
198 
4.71 
4.40 
4.42 
4. 20 
3. 23 
2. 33 
10-82-8 
10 
13 
1 . 23 
1.90 
1.27 
1 . 9 
26; 26 
C. labradoricus . . . 
235 
200 
4.08 
4.44 
4. 26 
4. 08 
3. 30 
2. 45 
10-79-8 
13 
13 
1.28 
1.44 
1 . 32 
2. 87 
25: 23 
('.stanleyi 
233 
210 
4.77 
4.47 
4. 88 
4.19 
3. 14 
2.31 
10-87-8 
11 
13 
1.18 
1.76 
1 . 25 
1.8 
28; 28 
C. labradoricus . . . 
240 
210 
4.77 
4. 77 
4.40 
4.40 
3.38 
2.58 
10-81-8 
11 
13 
1.25 
2 
1.33 
2 
28; 26 
