C02 DR. A. GUNTHER ON THE FISHES OF PANAMA. [Dec. 13, 



HEROS ERYTHR4US. 



D. |f. A.|. L. lat. 31. L. transv. % 



Lips thick, continuous. The length of the eighth dorsal spine is 

 less than one-third of that of the head. The depth of the free por- 

 tion of the tail is conspicuously more than its length. 



Lake of Managua. 



Heros lobochilus. 



B -TT=Tr A -S=5- L. lat. 32. L. transv. 6/14. 



Lips enlarged into lobes. The length of the eighth dorsal spine 

 is more than one-third of that of the head. The depth of the free 

 portion of the tail is scarcely more than its length. Greenish, with 

 blackish cross bands. 



Lake of Managua. 



Heros trimaculatus. 



u. H . a. 9 . 



Allied to H. salvini. Fold of the lower lip continuous. Three 

 black spots along the side of the body. 

 Chiapam and Huamuchal. 



Heros motagtjensis. 

 D - A. -L- 



"• W' £L ' 8-9* 



Closely allied to H. friedrichsthalii. Fold of the lower lip con- 

 tinuous. Prseorbital with the antero-inferior margin but slightly 

 concave, as wide as the orbit. A black interrupted band runs from 

 the eye to a spot situated above the end of the lateral line. 



Rio Motagua. 



Heros managuensis. 



±J. 1Q . A. g . 



Allied to H. friedrichsthalii. Fold of the lower lip continuous. 

 Preeorbital narrow, scarcely more than half as wide as the orbit. 

 The length of the twelfth dorsal spine contained thrice and two-thirds 

 in that of the head. A series of quadrangular spots runs from the 

 eye to a spot situated above the end of the lateral line. 



Lake of Managua. 



Heros oblongtjs. 

 T) _2!_ a — 



"' 12—13- A - 8-9* 



Allied to H. microphthalmia. Fold of the lower lip continuous ; 

 five series of scales on the cheek. The height of body is one-third 

 of the total length (without caudal), the length of the twelfth dorsal 

 spine less than one-third of that of the head. Coloration as in 77. 

 microphthalmus. 



Rio Motagua. 



