FISHES OF Ely SALVADOR 
273 
aa. Anterior pair of teeth in upper jaw enlarged, canine-like; the anterior pair in lower jaw small, 
followed by one or more enlarged teeth; premaxillary processes reaching to or beyond 
middle of eye; mouth moderate, the maxillary reaching about to anterior margin of eye; 
dorsal XVII to XIX, 10 to 12; anal VII or VIII, 8 to 10. 
d. Body rather deep, the depth 2.12 to 2.47 in length (specimens 127 to 185 mm. long); 
about 6 rows of scales on cheek; a prominent dark spot above origin of lateral line 
(sometimes obscure in adults); no black sports or bars on opercle; no rusty spots on 
body and vertical fins trimaculatum, p. 277. 
dd. Body more elongate, the depth 2.54 to 2.74 in length (specimens 127 to 185 mm. long); 
about 8 rows of scales on cheek; no dark spot above origin of lateral line; opercle 
with one or two bars or blotches; adults usually with rusty spots on body and vertical 
fins motaguense, p. 279. 
17. Cichlasoma nigrofasciatum Giinther 
Burro ; AcHiBA ; Chamahra: Chtncoyo; Conga; Mojarra 
Heros nigrofascialiis Quntber, Trans., Zoiil., Soc, London, VI, 1868, 432, Fl. LXXIV, flg. 3 (Lakes Atitlan ami Amatitlan), 
Cithlasoina nigrofasciatum Jordan and Everruaun, Bull., U. S. Nat. Mas. XLVII, 1898, 1525; Regan, Ann. and Mag. Nat. Hist., 
7ser., XVI, 1905, 75; Regan, Biol. Cent. Araer., Pisces, 1906, 22; .\Ieelc, Pub., Field Col. Mus., Zool. Ser., VII, 1908, 189. 
Head 2.55 to 3.35: deptli 1.9 io 2.25: D. XVII to XIX, 8 or 9; A. VIII to X, 
5 to 8; scales 27 to 30. 
Body compressed, short and deep: dorsal profile rather steep, only slightly 
convex over snout and eyes; caudal peduncle short and deej), 1.7 to 2.5 m head; 
head rather small; snout moderate, 2.4 to 3.3 in head; eye 3.2 to 4.6; interorbital 
2.05 to 3.4; mouth small, terminal; maxillary hidden, failing to reach anterior 
margin of eye, 3.25 to 4.15 in head: fold of lower jaw interrupted at symphysis: 
premaxillary processes extending to anterior margin of eye; teeth in the jaws in 
bands, conical, the outer ones in anterior part of each jaw enlarged: gill rakers short, 
7 to 9 on lower limb of first arch; scales rather large, somewhat reduced on nape 
and chest, about 4 or 5 rows on the cheeks, 4 complete rows between origin of dorsal 
and lateral line, a few small scales on the base of vertical fins: dorsal fin long, not 
notched, the last spine longest, about equal to postorbital part of head, the soft 
part elevated, the median rays filamentous in adults, sometimes reaching nearly 
to end of caudal, origin of fin over margin of opercle: caudal fin broadly rounded; 
anal fin with strong pungent spines, the soft part similar to that of the dorsal and 
coterminal with it; ventral fins inserted slightly behind the base of pectorals, the 
exterior rays more or less filiform, except in very young, and reaching beyond origin 
of anal : pectoral fins moderate, reaching to or more usually past the origin of anal, 
1.05 to 1.4 in head; vertebrae 13 + 15. 
Color of a fresh specimen, 55 millimeters long, grayish green above; pale with 
pinkish and silvery reflections on lower parts of sides; chest and abdomen nearly black 
with a slight greenish tinge; snout black: sides with 9 black bars, usually broader 
than interspaces, the first band arched, running across the nape and on opercle, a 
second band concentric with the first and extending across nape to behind base of 
pectorals, the third bar short, usually nearly and frequently completely connectiiig 
with the second bar on median line of side, forming a V: the other bars nearly 
vertical, the fourth to the seventh usually extending on dorsal fin, the eighth connect- 
ing the ends of the dorsal and anal, the last one at base of caudal; ventral fins 
