PERCH),*:. LXIII. 129 



lucent, with dark lines. Head 4J; depth 5 D. XII to XIV -13. 

 A. II, 10. Scales 7-64 to 70-12. L. 4. Ozark region, S. Mo. 

 (*t;/ia, wave ; raivia, band.) 



346. E. nianguae Gilbert & Meek. Body elongate, terete ; head 

 very long and slender, the snout deep and narrow, vertically rounded 

 at tip ; mouth large, maxillary beyond front of orbit ; eye shorter 

 than snout, 5^ in head ; cheeks with a few rudimentary scales ; 

 opercles and breast naked ; nape scaled ; A. rather smaller than 

 2d D. ; 1st A. sp. short. Olivaceous, the back with 8 to 10 wide 

 dusky cross-bars, which extend on sides ; g with the dark bars 

 encircling body ; back and sides with carmine-red spots in the pale 

 interspaces, most numerous in $ ; two black spots at base C. ; 1st 

 D. dusky, spotted with red, and with red edge ; other fins mostly 

 mottled with red. Head 3|; depth 6. D. XI or XII -13 or 

 14. A. II, 11 or 12. Scales 11-74-16. L. 3f. Niangua R., S. 

 Mo. Var. spilotum Gilbert, from Kentucky R. is similar, but with 

 the scales much larger (lat. 1. 58 to 60), and the lateral line 

 incomplete. 



xx. Gill membranes more or less broadly united. 

 z. Scales very small, 10-82-18; preopercle entire. 



347. E. squamatum Gilbert & Swain. Body elongate, the head 

 long and slender, the snout long-acuminate ; mouth long and nar- 

 row, the lower jaw included ; maxillary to front of eye ; eye moder- 

 ate; 1st D. low; A. high, its spines strong; cheeks, breast, nape, 

 and opercle scaly ; an enlarged black humeral scale. Yellow-olive, 

 with 10 broad dusky bars on back, and 10 dark blotches along sides; 

 a small black spot at base C. ; 1st D. pale, with broad, orange band ; 

 2d D. and C. barred with dusky and orange. Head 3f ; depth 5^. 

 D. XIV -13. A. II, 10. L. 4. French Broad R. (Lat., scaly.) 



22!. Scales large, 8-51-9 ; mouth small, low, horizontal (transition to 

 " Nanostoma"). (Po3Cilich.th.ys 1 Agassiz.) 



348. E. variatum Kirtland. Body rather robust, the head short 

 and thick, with short blunt snout, the anterior profile convex; eyes 

 large, 3| in head ; maxillary to front of eye (4 in head) ; top of 

 head rugose ; head almost naked ; nape and breast scaled ; fins all 

 very large ; A. large, a little smaller than soft D. ; P. reaching front 

 of A. ; dusky greenish, finely punctate ; belly and sides orange 

 yellow; posterior part of body with 5 orange bands; 1st D. with 

 dark blue band ; 2d D., A. and P. blue-black, shaded with orange ; 

 9 paler. Head 3|; depth 4f D. XIII -13. A. II, 9. L. 4. 

 Ohio Valley, scarce. (Lat., variegated.) 



ww. Anal fin rather small, notably smaller than soft dorsal, 

 a. Gill membranes broadly united across the isthmus; mouth small, sub- 

 inferior. (Nanostoma 2 Putnam.) 



1 TTouciAo?, variegated ; i\9vs, fish. 

 8 vavfc, small ; oro/ma, mouth. 

 9 



