48 DESCRIPTIONS OF ETHEOSTOMOIDS. 



dorsal spine half length of head, the spines all slender and weak. First 

 anal spine longer and stronger than the second, slightly longer than 

 snont. Caudal fin emarginate, less than length of head. Pectorals 

 much longer than head, reaching beyond tips of ventrals to vent, their 

 length nearly one-third that of body. Ventrals about as long as head. 



Scales ctenoid ; lateral line complete, not decurved ; head naked, or 

 with a few scales on opercles ,• nape completely scaled ; breast, and a 

 long strip behind ventral fins, naked, the posterior half only of ventral 

 region scaled over. No enlarged humeral scale. 



Head, 4 to 4r| in length; depth, 5 to 5^. Lat. 1. 50 to 54, 5J series be- 

 tween it and base of spinous dorsal. D. X-13; A. II, 7. L. If inches. 



Color: Body very dark green ; back with 7 light cross-bars usually 

 very distinct ; ventral region light, the lower half of sides marked with 

 light and dark greenish, these markings showing a tendency to form 

 bars usually alternating with those on back. Top of head dark, the 

 sides light greenish ; a broad dark bar from eye to tip of snout, one be- 

 low eye, and a broad dusky area covering parts of opercle, preopercle, 

 and cheek. A dark bar in front of pectoral fins, and several transverse 

 series of dark spots on under side of head. Fins all conspicuously 

 marked with broad bars of light and dusky greenish. A black humeral 

 spot. Males showUraces of this plan of coloration, but are more uni- 

 formly dusky greenish,* the lighter markings much less conspicuous. 



Abundant in the Poteau River, near Hackett City, Ark. Found also 

 in the Saline River at Benton, Ark., and in the Washita River at Arka- 

 delphia. 



2. Etheostoma (Cottogaster) uranidea Jordan & Gilbert, sp. uov. 36413. 



Allied to Etheostoma shumardi. 



Form elongate, terete, very little compressed; upper profile gently 

 arched, the lower almost straight; caudal peduncle short and very 

 slender ; upper profile of head descending in a long gentle curve to 

 the sharp snout. Mouth terminal, nearly horizontal, the lower jaw in- 

 cluded ; premaxillaries on a level with lower margin of orbit; maxil- 

 lary reaching beyond vertical from front of orbit, 3| in head. Premax- 

 illaries protractile, the fold very narrow. Eye equaling length of snout, 

 3|- in head, nearly twice interorbital width in a specimen 2 inches 

 long. Opercular spine well developed; preopercular margin entire. 

 Parietal region rather broad, depressed, the bones rugose. Gill-mem- 

 branes very slightly joined at base. Cheeks mostly naked; opercles 

 closely scaled. Breast naked, or with a few scattered scales. Paired 

 fins rather small, the vertical fins long but rather high. Membrane of 

 first dorsal not joining base of second. Longest dorsal spine about 

 equaling distance from tip of snout to middle of orbit; soft rays half 

 as long as head. Caudal fin deeply emarginate. Anal spines very 

 short, about equal in size, as long as diameter of orbit. Soft rays of 

 anal high, the fin rather larger than second dorsal. Pectorals and 



