Dec. 28, 1916. Fisnes of PANAMA— MEEK AND HILDEBRAND. 343 
ccc. Body with cross-bars, forming a series of blotches on upper 
lateral line and a larger series on middle of sides; each scale 
with a dark spot; scales in lateral series 30 to 32; 4 rows of scales 
between lateral line and base of anterior dorsal spines; anal 
spines 5. ' steboldii, p. 345. 
bb. Lower lip broad, continuous, and free at symphasis; teeth rather 
blunt; young with dark cross-bars, these less distinct in adult; 
sides with a large, black blotch under posterior part of spinous 
portion of dorsal; a small black spot at base of upper half of 
caudal. calobrense, p. 346. 
aa. The anterior pair of teeth in each jaw enlarged; mouth rather 
large; the maxillary reaching past vertical from anterior margin 
of eye; sides with a dark lateral band, ending in a jet black caudal 
spot. umbriferum, p. 347. 
74. Cichlasoma maculicauda Regan. 
Cichlasoma maculicauda Regan, Ann. & Mag. Nat. Hist., Ser. 7, XVI, 
1905, 227 (Lake Yzabal and Rio Motagua, Guatemala; Rio Chagres, 
Panama), and Biol. Cent. Amer., Pisces, 1906, 19, Pl. II, fig. 3. 
Head 2.7 to 3.23; depth 1.75 to 2.1; D. XVII or XVIII, 11 or 12; 
A. VI, 9 or 10; scales 31 to 33. 
Body deep, compressed; anterior profile a little concave in large 
specimens possessing a slight nuchal hump, convex in others; head deep; 
snout moderate, 2.1 to 4 in head; eye 2.8 to 4.3; mouth small, terminal, 
slightly oblique; maxillary failing to reach anterior margin of eye, 3.4 
to 4 in head; the lips not thickened, the lower one not free at middle; 
teeth in the jaws pointed, in 2 more or less definite series, the outer and 
anterior ones enlarged; gill-membranes united across isthmus; gill- 
takers short, about 9 or 10 on lower limb of first arch; scales moderate, 
ctenoid, 5 or 6 rows between lateral line and middle of base of dorsal; 
lateral line interrupted under soft portion of dorsal, reappearing on the 
third row of scales below its original course; origin of dorsal over or 
slightly in advance of base of pectoral, the spines strong, the last one 
1.8 to 2.5 in head, the soft portion pointed, a few of the rays somewhat 
produced in large examples, always reaching notably past base of cau- 
dal, its base with small scales; caudal fin scaly at base, its margin con- 
vex, more strongly so in adult than in young; anal fin with 6 strong 
spines, the soft portion similar to that of dorsal; the outer rays of the 
ventral fins somewhat produced, reaching to or past origin of anal; 
pectoral fins moderate, 1.14 to 1.3 in head. 
Color yellowish-green to brownish, without distinct cross-bars. 
Lateral band present only in young (25 mm.), which also have a black 
