PLATE 49. 



Fig. 1. Astyanax albeolus Eigenmann. 



6241 F. M. 116 mm. Rio Machucha, Costa Rica. 



Figs. 2 and 3. Composite of Steindachner's figures of A. fischeri which is fascialus and the color of 

 niherrimus from the same locality. The combination was made when it was thought there was but 

 one species of Astyanax in the tj-pe-locality of fixcheri and that Steindachner's artist had omitted 

 the color spots on the caudal. Hildebrand has just found that both fascialus and ruberrimus occur 

 in the type-locaUty of fischeri and tliat the latter is a synonym of fascialus. 



Figs. 4 and 5. Astyanax mexicanus (Fihppi). 



(4) 10927 I. U. M. 9 . 80 mm. Victoria, Mexico. 



(5) 10921 I. U. M. cf . 73 mm. Yantepec, Mexico. 

 Fig. 6. Astyanax fasciatus macrophthalmus Regan. 



10928 I. U. M. 82 mm. Motzorongo, Mexico. 



