1887.] PROCEEDINGS OF UNITED STATES NATIONAL MUSEUM. 49 



reafcrals short, reaching about the same vertical, not nearly to vent ; 

 length of pectorals nearly equal to head. 



Scales of moderate size; nape completely invested; a wide naked 

 strip on each side median line of belly, the latter containing a single 

 series of thin, elongate, plates, weakly spinous on posterior margins; 

 lateral line complete, parallel with outline of back. 



Head, 3J to 3f in length; depth, 5|. D. XI-13; A. II, 10 or 11. 

 Lateral line 48 to 56, 6^ series between pores and dorsal fin. 



Color in spirits : Greenish olive, rendered dusky on upper parts by. 

 black specks, which become large and very conspicuous on top of head, 

 opercles, and sides of snout. Four conspicuous dark cross-bars, nar- 

 rower than interspaces, downward and forward from back to lateral 

 line: the first from anterior dorsal spines, the second from space between 

 dorsals, the third from posterior half of soft dorsal, the fourth from 

 caudal peduncle. A series of about 11 dusky blotches on sides imme- 

 diately below lateral line. A black bar before, one below, and one 

 behind eye ; the one below eye very distinct. Dorsals, pectorals, and 

 caudal barred with light and dark ; ventrals and anal plain. In life, 

 the colors were similar, there being no distinct blue, red, or green. 



Several specimens, varying from 1^ to 3 inches in length, from Wash- 

 ita Eiver at Arkadelphia, Ark. 



3. Etheostoma (Hadropterus) ouachitae Jordan & Gilbert, sp. uov. 36449. 



Body elongate, slender, comparatively little compressed, in general 

 contour much resembling E. uranidea. Head slender, the snout not 

 blunt, the upper profile descending in a long gentle curve. Mouth mod- 

 erate, narrow; premaxillaries on a level with lower part of orbit, non- 

 protractile; lower jaw included; gape nearly horizontal; maxillary 

 reaching vertical from front of orbit, its length slightly greater than 

 snout, U in head. Eye equaling snout, 3f in head. Gill-membranes 

 scarcely joined across isthmus. 



Fins of moderate size; longest dorsal spine 2i in head, the longest 

 soft ray more than half head ; anal spines short and weak, the two 

 nearly equal, their length equaling diameter of orbit. Caudal emar- 

 ginate. Pectorals reaching to opposite tips of ventrals, as long as head. 



Scales moderate, rough ; lateral line complete, straight ; opercles and 

 nape scaled; cheeks smooth, naked or covered with imbedded scales; 

 breast naked. Middle of belly naked, without series of enlarged 

 plates in our specimens. An enlarged spinous scale between bases 

 of ventral fins. 



Head 4 in length; depth 6^; D. XI or XII, 13; A. II, 10. Lateral 

 Ime 52 to 56; 6 series of scales between lateral line and base of spinous 

 dorsal. Length 2 inches. 



Color : Olivaceous, back more or less tessellated with dark brownish, 

 the margins of the scales dusky. Five rather faint dark bars from the 

 back downward and forward to lateral line: the first under front of 

 Proc. IST. M. 87 4 



