Jordan and Evermann. Fishes of North America. 1043 



equaling that of snout ; caudal wide, truncate behind, slightly emarginate 

 when fin is not spread; pectorals equaling distance from front of orbit 

 to tip of opercular spine, the tips of pectorals and ventrals reaching 

 about the same vertical ; ventrals H or If in head. Scales on body of 

 moderate size, becoming larger and less closely imbricated posteriorly, 

 those on nape and along base of dorsal anteriorly little imbricated, 

 roundish, without spinous points, partially embedded in the skin ; ventral 

 region uniformly scaled, without naked strip or series of caducous plates ; 

 no enlarged scale between bases of ventral tins ; head and breast naked, 

 excepting a few embedded scales below and behind eye. Color olivaceous, 

 the back with 8 to 10 dusky cross bars wider than the interspaces ; these 

 dorsal bars usually continuous with an equal number on middle of sides, 

 the latter terminating below lateral line in V-shaped prolongations, much 

 like those in Diplesion blennioides. In one specimen examined (adult male) 

 the first 2 bars are partially confluent on sides, the anterior one including 

 the axil and ending in a black spot below pectorals, the second encircling 

 body behind ventral fins ; bars behind front of anal in this specimen also 

 completely encircling body ; back and sides marked with many small, 

 bright, carmine-red spots, irregularly disposed in the light interspaces; 

 in the male specimen examined by us they are much more numerous, 

 those on hinder part of body confluent, forming narrow bars, 1 down 

 the middle of each light space ; a dark streak forward and 1 backward 

 from eye, none downward ; opercle and top of head dusky ; spinous dor- 

 sal dusky, the base marked with fine red spots, the fin broadly margined 

 with a bright carmine band ; soft dorsal barred with alternating series of 

 dark and of reddish spots ; caudal with wide bars of dark and red; a pair 

 of small jet-black spots on caudal peduncle at base of median caudal 

 rays ; anal dusky at base ; pectorals and ventrals light orange, indis- 

 tinctly barred with dusky. Length 4 inches. Niangua River, in the 

 Ozark region of southern Missouri ; scarce ; not seen elsewhere. A sin- 

 gularly beautiful fish. 



Etheostoma (Hadropterus) nianguse, GILBERT & MEEK, Proc. U. S. Nat. Mus., 1887, 52, Niangua 

 River, near Marshfield, Missouri (T^pe, No. 36214. Coll. Gilbert & Meek); MEEK, 

 Bull. U. S. Fish Comin., ix, 1889 (1891), 125. 



Etheostoma nianguse, BOULENGEE, Cat., i, 68. 



1433. HYPOHOMUS SPILOTUS (Gilbert). 



Head 3| to 3f ; depth 5i to 6 ; eye 5 in head in specimens 2 to 3 inches 

 long. 1). X or XI-12 or 13 ; A. II, 10 or 11. Scales 8-58 to 60, the pores 

 absent on the posterior 5 to 13 scales, and occasionally on single scales 

 more anteriorly. Color in life olive green above, light below ; back with 

 8 dark cross bars formed of dusky mottlings ; continuous with these, or 

 in other cases alternating with them, are 8 V-shaped markings on middle of 

 sides; sides and above spotted, with reddish orange occupying the light 

 interspaces ; a narrow black bar from above opercular angle, through eye, 

 encircling the snout; pectorals and ventrals translucent, tinged with 

 light orange ; dorsal translucent, the rays speckled ; spinous dorsal with 

 a narrow red margin, terminating posteriorly in a bright orange-red 



