126 Fretp Museum oF NaAturAL History — Zo6éLocy, Vor. X. 
Cichlasoma spilurum Géinther. 
Cichlasoma spilurum Ginther, Cat., Iv, 1862, 289 (Yzabal & Rio 
Motagua, Guatemala). 
Cichlasoma septemfasciatus Regan, Ann. & Mag. Nat. Hist., 1908, 
461 (Rio Iroquois). 
The specimens from Turrubales are identical with those taken on the 
Atlantic Side. Those from the Rio Higuerén are more robust anteriorly, 
and only the three and anterior bars and the one at the base of caudal 
are distinct, the others are quite faint. On the middle of the side the 
three anterior bars form three black lateral blotches. This species is 
very abundant in the East Coast streams of Costa Rica, but rather 
scarce on the Pacific Side. | 
I have compared the specimens listed below with several specimens 
from the Rio Motagua, Guatemala, and find no specific differences. 
Guapilis (48), 45 to 110 mm.; Zent, April 12 (85), 36 to 120 mm.; 
Parismina (36), 60 to 110 mm.; La Victoria (19), 55 to 120 mm.; Zent, 
April 15 (11), 45 to 100 mm.; Cuba River (4), 70 to 105 mm.; Tur- 
rubales (1), 97 mm.; Turrubales (1) 103 mm. (Alfaro); Rio Higuerén 
(24), 45 to 95 mm. (Alfaro); Chitaria (2), 50 to 76 mm. (Alfaro). 
Cichlasoma alfari Meek. 
Cichlasoma alfari Meek, Pub. Field Mus., Zoél. Ser., vit, 1907, 148 
(Turrialba). 
This species has been taken at Turrialba, apparently reaching a 
higher altitude than any other cichlid in Costa Rica. Vertebree 12+16 
= 28. 
Parismina (5), 40 to 165 mm.; Costa Rica River (3), 133 to 178 mm.; 
Virginia (1), 165 mm.; Guapilis (19), 80 to 175 mm.; Turrialba (4), 60 
to 93 mm. (Alfaro); Tucurrique (7), 65 to 135 mm. (Alfaro). 
Cichlasoma lethrinus Regan. 
Cichlasoma lethrinus Regan, Ann. & Mag. Nat. Hist., 1908, 462 
(Rio Iroquois). 
This species is close to Cichlasoma alfari. It differs from that 
species in having a slightly deeper body, a larger eye, a straighter pro- 
file and higher dorsal spines. The dark bars on side are prominent 
and the lateral band less defined than C. alfart. Vertebra 13+15= 28. 
Zent, April 12 (63), 40 to 160 mm.; Zent, April 15 (13), 70 to 140 
mm.; Parismina (11), 50 to 100 mm.; La Victoria (15), 75 to 150 mm.; 
