108G Bulletin 4y, United States Natiotial Museum. 



Paxilichthiis swaim,X Jordan, Proc. U. S. Nat. Mus., 1884, 479, tributary of Pearl River, 

 Monticello, Mississippi. (Type, No. 35308. Coll. Jordan & Swain.) 



1476. ETHEOSTOMA LUTEOVINCTUM, Gilbert & Swain. 



Head 3| to 4 ; depth 4i to 5 ; eyeSi to 4 in head. D. IX or X-13 ; A. II, 

 7 or 8; scales 6-49 to 5.5-11. Body compressed, the hack elevated, the 

 profile descending rapidly forward, and gradually toward tail, from front 

 of spinous dorsal; caudal peduncle very slender. Head compressed, 

 with a short high snout, the upper profile of which descends in a strong 

 curve. Mouth at lower level of muzzle, which does not project beyond 

 it, mandible included. Gape nearly horizontal, of moderate size, the 

 maxillary reaching vertical from front of pupil, 3^ in head. Cheeks and 

 opercles scaled. Preopercle entire. Opercular spine present. Branchio- 

 stegal merabraues narrowly joined across isthmus. Eye rather large, 

 longer than snout. Dorsals short and low, well separated from each 

 other; base of spinous dorsal equaling length of caudal peduncle and 

 but little longer than that of soft dorsal; highest dorsal spine half 

 length of head; the highest soft ray If in head ; anal spines of about 

 equal length, both slender and rather high, i length of head ; pectorals 

 as long as head ; ventrals If in head. Cheeks, opercles, and nape closely 

 scaled, the breast naked or partially scaled; no black humeral scale; lat- 

 eral line nearly straight, continued to below middle of second dorsal, 

 running on 30 to 35 scales. Colors in life: Very light pale olive, with 7 

 dusky cross bars on back, narrower than the interspaces and reaching 

 about halfway to lateral line, their ends connected by dusky lines; 

 below lateral line about 9 dusky greenish blotches, between which are 

 orange-yellow cross bars, most distinct posteriorly, not reaching median 

 ventral line ; no distinct streak forward from eye ; a dusky bar below 

 eye ; snout dusky ; small black spots at base of caudal ; soft dorsal and 

 caudal barred with dusky ; spinous dorsal with a black blotch on posterior 

 rays, a yellow or orange bar through middle of fin, the base and margin 

 dusky ; anal fin unmarked. Length 2 inches. Stone River, a tributary 

 of Tennessee River ; not common, {luteus, yellow; wic^ws, banded.) 



I The following is the original description of Pceciliehthys swaini: 



Head 3§ in length; depth 4f. D. XT, 12; A. II, 6; scales 3 or 4-41-7 or 8. Body fusiform, 

 rather elongate, the back rather elevated anteriorly, the caudal peduncle moderate, somewhat 

 compressed. Head rather slender and small, the anterior profile rather steep and Ke'itly curved, 

 becoming more obtuse at the tip of the snout. Snout short, a little bluntish;its length 5 in 

 head. Eye rather large, 3% in head. Mouth not very small, oblique, the lower jnw iiuluded; 

 the maxillary reaching very nearly to opposite middle of pupil, its length Zy^ in head. Teeth 

 rather strong, present on vomer. Preopercle entire. Gill membranes very nearly separate. 

 Opercular spine strong. Opercles and cheeks well scaled; scales of body rather large, ctenoid; 

 belly covered with ordinary scales; nuchal region nearly naked; breast naked; lateral line 

 wanting posteriorly on about two scales, anteriorly somewhat arched and concurrent with the 

 back. I)orsal fins contiguous but separate, both high, the soft dorsal shorter and higher than 

 the spinous dorsal and mnili longer and higher than the anal; longest ray of soft dorsal 1% in 

 head; caudal truncate, l;/j in head; pectorals moderate, If^j in head, not quite reaching vent; 

 ventrals coterminous with them, 1^^ in head. Color in spirits olivaceous, marbled with darker, 

 the dark markings rather obscure and taking the form of dark quadrate spots about as large as 

 the eye and alternating so as to give a checkered appearance. Head with 4 dark stripes, which 

 radiate from the eye; a dark streak on anterior part of opercle; spinous dorsal with a basal 

 band of pale (probably crimson in life), above this a dark band (probably deep blue); the outer 

 edge of the fin broadly pale (probably scarlet in life); soft dorsal and caudal checkered with 

 light and dark spots; anal and ventrals plain, apparently bluish, the latter darkest; pectorals 

 plain; no black humeral spot. A single specimen, 2 inches long. 



