NOTES ON SOME FRESH-WATER FISHES FROM MAINE 
359 
It would therefore seem that it must be called a Leuciscus, but the absence of barbels can no longer 
be considered a generic character by which to distinguish this group. It is very possible that this 
is the species reported by Cox from New Brunswick under the name of Couesius plumbeus, while 
Couesius prosthemius is undoubtedly Couesius plumbeus, as is shown by specimens sent by Dr. Cox to the 
United States National Museum. 
Proportional measurements of Leuciscus carletoni, 10 cotypes. 
j Total length in 
millimeters. 
Length, with- 
out tail. 
Head in length, 
without tail. 
Depth in length. 
Eye in head. 
Snout in head. 
Maxillary in 
head. 
1 
| Mandible in 
head. 
<D 
biO . 
*- 
u ° 
cj ’*"* 
A 
Scales. 
Dorsal rays. 
Anal rays. 
Longest ray of 
dorsal in head. 
Longest ray of 
anal in head. 
Length, pecto- 
ral in head. 
Length, ventral 
in head. 
124 
116 
4.29 
5.52 
5.40 
3. 85 
3.50 
3.50 
1, 5-4, ? 
12-68-9 
8 
8 
1.5S 
1.80 
1.58 
1.92 
123 
no; 
4. 46 
5. 80 
5.20 
3.71 
3. 71 
2.88 
2, 4-5, 2 
13-71-9 
8 
8 
(?) 
(?) 
(?) 
(?) 
84 
69 
4. 31 
5.30 
4.57 
3.55 
4 
2. 90 
2, 4-5, 2 
13-73-9 
8 
8 
1.39 
1.39 
1(23 
1.88 
76 
63 
3.93 
4.84 
4. 57 
3.20 
4 
3.20 
2, 4-5, 2 
12-68-8 
8 
8 
(?) 
(?) 
(?) 
(?) 
100 
84 
4.20 
4.94 
4 
4 
3. 81 
3.33 
2, 4-5, 2 
13-66-9 
8 
8 
1.35 
1.53 
1.21 
1. 66 
85 
71 
4.18 
4. 73 
4.25 
3.40 
4. 25 
2.83 
2, 4-5, 2 
12-70-8 
8 
8 
1. 66 
1.81 
1 
1.88 
87 
72 
4 
3. 60 
4. 50 
3.60 
3. 60 
3. 27 
2, 4-5, 2 
13-70-8 
8 
8 
1.24 
1.3S 
1.24 
1.71 
73 
Cl 
4.06 
4.35 
3. 75 
3.33 
3.75 
3 
2, 4-5, 2 
12-72-8 
8 
8 
1.25 
1.50 
1.25 
1.66 
71 
61 
4.06 
4.35 
3. 75 
3.33 
3. 75 
3 
2, 4-5, 1 
12-71-8 
8 
8 
1.40 
1.50 
1.21 
1.77 
74 
62 
4 
4. 76 
3.82 
3.87 
3.82 
3.10 
2, 4-5, 1 
12-69-8 
8 
8 
1.29 
1.40 
1.29 
1.82 
Proportioned measurements of Leuciscus carletoni from other localities. 
[Southards Pond, August 19, 1901.] 
Total length. 
Head. 
Depth. 
Eye. 
Snout. 
Maxillary in 
head.' 
a 
© . 
Sj 
5~ 
3 
■ 
Teeth. 
Scales. 
Dorsal. 
Anal. 
Height of 
dorsal. 
Height of 
anal. 
Pectoral in 
head. 
Ventral in 
head. 
Sex. 
1 
Ill 
4. 12 
5 
4.20 
3.50 
3.50 
3 
2, 5-4, 2 
11-73-10 
8 
? 
1.50 
1.61 
1.61 
2 
115 
4.34 
5 
4.60 
3.83 
3.83 
3. 13 
2, 5-4, 2 
12-65-10 
8 
7 
1.64 
1.52 
1 
2.09 
115 
4.21 
4.85 
4.60 
3. 80 
5. 59 
3. 28 
2, 5-4, 2 
14-68-10 
8 
8 
1.53 
1.69 
1.64 
1.93 
109 
4.09 
5.62 
4.40 
3.66 
4 
3.38 
2, 5-4, 2 
12-71-11 
8 
8 
1.46 
1.57 
1.57 
1.83 
rSmith Brook, September 27, 1901.] 
76 
3.82 
5 
4. 25 
3. 77 
3.40 
3.40 
2, 5-4, 2 
13-68-8 
8 
8 
1.41 
1.36 
1.30 1.88 
Male. 
70 
3. 86 
4.83 
3.75 
3. 75 
3 
3. 75 
2, 5-4,2 
66 
9 
8 
1.36 
1.50 
1.36 | 1.87 
Male. 
76 
3.93 
4.84 
4 
4 
2. 66 
3.20 
2, 5-4, 2 
69 
8 
8 
1.33 
1.45 
1.33 1.88 
Male. 
75 
4.13 
5. 16 
4.28 
3. 33 
3 
3 
2,4-4,] 
68 
8 
8 
1.36 
1.50 
1.50 1 2 
Male. 
86 
4 
4.73 
4 
3.60 
3 
3 
1,5-4,] 
12-66-8 
8 
6 
1.64 
1.80 
1.64 2 
Fem. 
79 
3. 82 
4. 33 
4. 25 
3.40 
2. 83 
3. 40 
1,4-4, 2 
12-68-8 
8 
8 
1.54 
1.70 
1.41 2.12 
Fern. 
[Cross Lake Thoroughfare, October 23, 1901.] 
93 
4.20 
5 
4. 75 
3.16 
3.20 
2.71 
1, 5-4, 2 
12-69-8 
8 
8 
1.87 
1.72 
1.72 
1.90 
Fem. 
80 
4. 25 
5. 23 
4.57 
3.20 
3.55 
3.20 
2,5-4,] 
13-69-8 
8 
8 
1.45 
1.88 
1.60 
2 
Fem. 
81 
4.18 
5.15 
4.57 
4 
4 
2. 90 
2, 5-4, 2 
14-73-9 
8 
8 
1.45 
1.60 
1.60 
2 
Fem. 
100 
4. 10 
4. 68 
4.44 
3.33 
3.33 
2. 85 
2, 5-4, 2 
14-72-8 
8 
8 
1.66 
1.53 
1.25 
1.81 
Male. 
77 
4 
4. 42 
4.57 
3.20 
3.20 
2.90 
2, 5-4, 2 
13-69-8 
8 
8 
1.33 
1.33 
1.23 
1.77 
Male. 
75 
4.20 
4 
4.28 
3. 33 
3.75 
3 
2, 4-4, 2 
13-73-8 
8 
8 
1.30 
1.50 
1.25 
1.87 
Male. 
Proportioned measurements of Leuciscus margarila. (?) 
[From Lake Ontario (Cemetery Creek near Watertown, N. Y.), for comparison with above.] 
70 
5 
4.14 
4.14 
3. 62 
4.83 
2. 90 
(?) 
12-59-7 
9 
7 
1.45 
1. 61 1.45 
1.93 
66 
4. 30 
4.30 
4.33 
3.71 
3.71 
2. 60 
1,5-5, 2 
11-64-6 
9 
8 
1.44 
1.62 1.52 
1 . 85 
62.5 
4. 16 
4. 16 
4.16 
4. 16 
4. 16 
2. 66 
1,4- (?) 
11-64-7 
9 
8 
1.66 1 1.25 
61 
4. 16 
4.34 
4 
4 
4 
3 
(?) 
11-61-7 
8 
8 
1.33 
1.50 1.20 
1.71 
57 
4.90 
4.26 
3. 33 
3. 33 
(?), 5-4,1 
11-58-6 
8 
8 
1 
59 
4.25 
4. 63 
4 
4 
4 
3 
1, 5-4,1 
11-59-7 
9 
8 
I. 
1 
