1526 Bulletin //, United States National Museiun. 



thence it is coutinued to root of caudal as a series of 4 or 5 irregular spots ; 

 fius blackish, ajipareutly immaculate. Length 3^ inches. Lake Managua, 

 Guatemala. (Giinther.) (»utZ<Mm, many; spinosua, spiued.) 



Herofi miiltispi7iosus, Gunther, Fish. Centr. Am., 453, pi. 74, fig. 2, 1869, Lake Managua, 

 Guatemala. (Coll. Oapt. Dow.) 



1923. tICHLASOMA CENTRAUCHIIS (Gill & Branaford). 



Depth 2. D, XVI, 8; A. X, 9. Caudal peduncle very short, its height 

 at root being twice as great as it is long, and it comparatively rapidly 

 narrows to caudal; head having forehead slightly gibljous, and snout 

 rectilinear and pointed in fnmt; length of snout little more than i that 

 of head; intcrorliital area slightly raised; preoperculum nearly vertical 

 and at angle boldly rounded; buccal scales in 5 rows; jaws normally 

 developed ; supramaxillary terminating at a vertical about a pupil's length 

 in advance of eye; lips moderately dsveloped, the lower iuterruj)ted in 

 front; teeth of outer row rather strong; dorsal fin moderately developed; 

 dorsal spines increase in a regular, bold curve from fir.st to .sixth, and the 

 following nearly equal; longest rays, bent backward, extend for length of 

 basal half of caudal; anal fin very long and commences under ninth dor- 

 sal spine; spinous portion not much le.ss than 3 times longer than soft; 

 first 3 spines rapidly graduated and following ones nearly equal; long- 

 est soft rays reaching backward to terminal half of caudal; caudal iin 

 forms i of extreme length, its angles round and the posterior margin 

 slightly emarginated; pectoral fin extending backward nearly to verti- 

 cal of fifth or sixth anal spine; ventral fins also reaching to nearly 

 same point; parts above and below longitudinal axis nearly equally bal- 

 anced; back declines moderately in a curve toward tail and in front of 

 dorsal slightly, but regularly decurved toward forehead. Color bronze 

 olive, with 7 indistinct cross bauds; at base of tail a faint spot, chielly 

 above lateral line ; fins dusky and immaculate. Lake Nicaragua. (Gill & 

 Bransford. ) ( Centrarchtis, a genus of North American sunfishes, with many 

 anal spines; xsvrpov, spine; apxoi;, anus.) 



Heros centrarchtis, Gn.L & Bransfokd, Proc. Ac. Kat. Sci. I'hila. 1877, 185, Lake 

 Nicaragua, Nicaragua. 



6i6. HEROS, Meckel. 



ileros, Heckel, Anu. Wiener. Mua. 1810, 302 (scvenu; etc.; restricted l>y Jordan & Gil- 

 bert to seoecrt*). 

 Rerichthys, Baird & Giraed, Pi-oc. Ac. Nat. Sci. Phila. 1854, 25 (cyanoguttatug). 

 Hoplarchus, Kacp, Wiegmaun's Archiv 1800, 129 (pentacanthui) . 



Body oblong, compressed, somewhat elevated, the form Centrarchoid. 

 Head rather large, scaly on the cheeks and opercles; preopercle entire. 

 Mouth rather small, terminal, low, moderately protractile, the jaws sub- 

 equal, lower lip without frenura, its fold being continuous; maxillary 

 small; preorbital deep; jaws with a single series of rather stout conical 

 teeth, behind which, in front, is a narrow band of villiform teeth. Gill 

 membranes slightly connected, free from the isthmus ; gill rakers short and 

 thick. Scales rather large, ctenoid, the lateral line interrupted and begin- 



