32 
BULI^ETIN OF THE BUREAU OF FISHERIES. 
ventral surface of caudal peduncle. Lying below the lateral line, and alternating with the black 
saddles are four black quadrate blotches, the last being on base of caudal. Several scales on either 
side of base of spinous dorsal between first and second saddle black. Dorsal spines with a few dusky 
or black markings; the soft dorsal crossed by three rows of blackish spots, these confined to the rays; 
caudal with dusky mottlings; anal and ventrals white; pectoral crossed by five more or less concentric 
rows of blackish spots; axil white. Opercle and top of head dusky, a black spot behind eye, a black 
bar in front of eye, a second below eye, and a third from upper margin of pupil to interorbital, appar- 
ently a continuation of the second. 
In life the reddish-brown ground color and jet-black saddle markings present a very striking 
appearance. 
Type: Catalogue no. 74346, United States National Museum, 4.9 cm. in length, from Swan Creek, 
Md., May 2, 1912. 
The cotype, 4.9 cm. long, agrees with the type in the form of fins, scaling, and coloration; and has 
dorsal x-ii,i; anal ii,8,i, pectoral, 14, scales, S-l-9-50 (-(-3). head, 3.66; depth, 5.17; length of caudal pe- 
duncle equal to maxillary, 2.82, interorbital, 2.38 in eye. 
The differences between H. sellaris and H. peltatus, the only other species whose range coincides, 
may be seen from the following comparative table, based on the type and cotype of the new species 
and on 6 specimens of H. peltatus from Mattapony River, Va. (No. 69716, U. S. National Museum). 
Comparison of Measurements of Hadropterus sellaris and H. peltatus. 
Items. 
Hadropterus peltatus. 
H. sellaris. 
Total length 
6.5s cm. . . . 
5-5 cm 
S-o cm 
S-o cm 
4.9 cm 
4-7 cm 
4.9 cm 
4.9 cm. 
Dorsal formula 
XIV-I2,i . . . 
xm-i3.i. . . 
xiii-i2.i. . . 
xv-ii.i. . . . 
xni-i2,i. . . 
xin-ii.i. . . 
xi-n,i 
x-ii.i. 
ii.8,i 
n,8,i 
n.S.i 
n,8.i 
n,8,i 
n.8,i. 
Scales 
6-1-9-56 — 
5 + 8-57.... 
6+10-52. . . 
6-t 10-53. . . 
5+9-S3.... 
6-I-S-S7.... 
4+6-46, . . . 
S+7right®-5a 
Eye in head 
3-47 
3-47 
3*12 
3-37 
3-31 
3-43 
3-67 
3-5S- 
Snout in head 
3-47 
3-90 
3.86 
3-93 
3.87 
4-48 
3-14 
3-14. 
Maxillary in head 
3-12 
3-20 
3-05 
3-II 
3-05 
3-22 
2.82 
2.82. 
Interorbital in head 
6.24 
6.25 
5-50 
5-90 
5-52 
5IS 
8.80 
8.46. 
Interorbital in eye 
1,80 
1.80 
1.62 
I-7S 
1.66 
I-SO 
2.40 
2.38. 
Interorbital in snout 
1.80 
1.60 
1-43 
i-SO 
1-43 
r-i5 
2.80 
2.69. 
Pectoral in head 
127 
1. 10 
1 . 16 
1.12 
1. 16 
r-03 
•92 
.92. 
o Eett side, 9. 
