PERCIDA. 99 
rapidly descending; lips thick, lower jaw included. Caudal peduncle deep. 
Color, dark olivaceous, sometimes nearly black above, somewhat barred on 
the sides; a dark longitudinal line on cach row of scales; sides irregularly 
flecked with crimson dots; belly pale; throat and breast deep dark blue. 
Fins marked with brown, green, black, yellow and crimson. Females less 
distinctly marked. Length 2% inches. 
The Blue-breasted Darter is rather rare in Ohio, although it 
has been taken at a number of widely separated localities, which 
would indicate a general distribution. It is found in company 
with £. zonale, on swift, stony ripples, but is much less frequent 
in occurrence. Jordan mentions it for the Mahoning river ; 
‘Muskingum river,’’ Henshall, 1889; Franklin County, Scioto 
river, Olentangy river, Big Walnut creek, not common, William- 
son and Osburn, 1898 ; Huron river at Milan, Stillwater creek at 
Dayton, North Fork of Licking river at Newark, R. C. Osburn, 
1899. 
Etheostoma maculatum Kirtland. 
Head 334 to 4; depth 4% to5%. OD. XII-12 or 13; A. II, 8 or 9; scales 
9-56 to 63-14. Body elongate, caudal peduncle very deep. Head acuminate, 
the front descending very gradually, the mandible rising as gradually to its 
extremity; jaws subequal. Lateral line complete; cheeks naked; opercles 
sealed; gill membranes not connected. Color, above black, shading to dark 
olive below; throat turquoise blue; sides and dorsum marked with small, 
circular spots of bright crimson. First dorsal uncolored, with a black spot 
at its base in front and a dark shade through the middle; second dorsal 
blood red; caudal with two large, crimson spots confluent on the mid-line of 
the tail at its base. Female dull, the fins dark barred and not crimson. 
Length 2% inches- 
Very rare. The species was described in 1838 from speci- 
mens taken in the Mahoning river by Dr. Kirtland. I know of 
but one subsequent record of its capture within the state. Mr. 
H. B. Williamson and the writer took a single specimen, a female 
with ripe eggs, from a swift ripple in Big Walnut creek, near 
Lockbourne, Franklin County, on June 26, 1897. 
Etheostoma coeruleum Storer. RAINBOW DARTER ; BLUE DARTER ; 
SOLDIER FISH. 
Head 3% or more; depth 44%; eye 4 to 4%. D.IX to XII-12 to 14; 
A. II, 7 or 8; scales 5-37 to 50-10. Body robust, rather deep and com- 
pressed. Head large, compressed. Mouth moderate, terminal, oblique, the 
lower jaw somewhat included; gill membranes not united. Cheeks naked 
