18 



MEMOIRS OF THE CARNEGIE MUSEUM. 



5085, C. M., 12844, I. U. M., eighty. Esperanza. Eigenmann. 



5086, C. M., 12845, I. U. M., two. Electric liglit plant at edge of plains of 

 Bogota. Eigenmann. 



5087, C. M., 1285G, I. U. M., one hundred and fifty. Madrid. Eigenmann. 



5491, C. M., 13182, 1. U. M., nine, largest 70 mm. Boyaca, Rio Chiquinquiseto. 

 Gonzales. 



5492, C. M., 13183, 1. U. M., three. Quebrada Zuaita, Santander. Gonzales. 

 Head 3.5-3.7; depth 3-3.3; D. 11, rarely 10; A. 13-16; scales in a median 



series 32-34 of which 4 to 6 bear pores; eye 4-4.45 in the head, equal or nearly equal 



Fig. 3. Grundulus bogotensis (Humboldt), a, maxillary; b, premaxillary; c, mandible. 



to the snout, 1-1.33 in the interorbital. Compressed but heavy, dorsal and ventral 

 outlines equally curved; the head rather blunt. Preventral area rounded, naked 

 in the middle below the pectorals, the scales bordering the naked area rounded, 

 isolated from each other; area along base of dorsal narrowly naked, a naked 

 area in front of the dorsal as wide as the eye, growing wider toward the head and 

 extending on both sides of the occipital process; the scales bordering the area sub- 

 circular, small, isolated from each other; occipital process reaching about one 

 seventh to the dorsal; interorbital broad; frontal fontanel large, entirely separating 

 the frontals in the young, in contact for a variable length in the adult, frontal 

 fontanel being nearly as long or only half as long as the parietal. IMouth moderate, 



