1524 Bulletin ^7, Lhiifed States National Musenin. 



posteriorly; aual and ventral black. Young examples have no black, 

 except the band on tail ; their dorsal spines proportionally longer, length 

 of twelfth contained 2\ in that of head. Length 10 inches. Guatemala. 

 (Giinther.) (//^'Anr?, black; oi)pd, tail.) 



Keros iMlanxirus, Gunther, Cat. Fishea, 228, 1862, Lake Peten, Guatemala. (Coll. God- 

 man & Salvin.) 



1918. ( ICHLASOMA \EBUL1FEBUM (Gunther). 



Head 4; depth 2:1. D. XVIII, 12; A. VI, 9; scales 6-35-13. Head as high 

 as long; snout slightly elevated, preorbit.il wider than orbit. Profile of 

 nape much curved. Cleft of njouth small, horizontal; jaws equal anteri- 

 orly; interorbital space convex, its width eiiual to \\ diameter of eye; 

 opercles scaly. Dorsal and anal fins very slightly scaly at base, spines of 

 the former of moderate strength, length of twelfth somewhat less than I 

 that of head. Soft dorsal and aual not produced, and the former not 

 extending to root of caudal; caudal truncated ; free portion of tail longer 

 than high; pectoral shorter than head; ventral not prolonged. Fold of 

 lower lip iuteirupted in middle; 6 series of scales on cheek. Greenish 

 olive; middle of body clouded with blackish, iu the form of indistinct 

 vertical bands; a round l»lack spot in middle of root of caudal; the outer 

 parts of fins blackish. Length 7 inches. Mexico. (Giinther.) {nebula 

 cloud; fero, I bear.) 



Chromig nehulifer, GOntheh, I^roc. Zool. See. Lend. 1800, 318, Mexico (Coll. TM. Sall<i) ; 

 Gunther, Cat. Fishes, iv, 297, 1862. 



11(19. CICHLASOMA LEXTIOIXOSUM (Steindachner). 



Head 3^ ; depth 2|. D. XVII, 13 ; A. VI, 9 ; scales 34-20. Body compara- 

 tively elongate, compressed ; the back arched, profile depressed before 

 eye; the snout prominent, bluntish, sharp in the young. Anterior teeth 

 considerably enlarged. Eye rather behind middle of head, 5 in head ; 6 

 rows of scales on cheek. Preopercle rather broad. Ventrals rounded, 

 rather short, not reaching vent; pectoral longer, 4 in head; spines moder- 

 ate; soft dorsal and anal pointed; caudal lunate. Olivaceous, yellowish 

 below, base of each scale paler; 6 or 7 faint curved dark cross bands; 

 sides of head and sides of body everywhere with small irregular scattered 

 brown specks, these especially numerous on opercles; soft dorsal, anal 

 and caudal with crossrows of dark spots; spinous dorsal with 3 faint 

 dark lengthwise streaks. Length SI inches. Mexico. (Steindachner.) 

 (lentiginosiis, warty.) 

 Heros lentiginosus, Steindachner, Chromiden Mejicos, 6, 1864, Mexico. 



1920. tif HLASOMA DEPPII (Heckel). 



Head 3f; depth 3. D.XVII, 10; A.VI,8; lateral line 30-17. Fold of 

 lower lip interrupted in the middle. Six rows of scales on cheek. The 

 length of the dorsal spines is :^ that of head. Brownish ; tail with 6 obso- 

 lete dark cross bands, the last with a black spot. (Heckel.) Mexico; a 

 scarcely known species. (Named for Mr. Depp.) 

 Heros deppii, Heckel, P.rasil. FlussFische, 382, 1840, Mexico; GIjnther, Cat., iv,296, 1862. 



