24 Annals of the Carnegie Museum. 



second bar some distance behind this in a light area, the second bar 

 widest above the lateral line, where it forms an indistinct humeral spot ; a 

 third bar shading into the thickly dotted sides ; cheeks thickly punctate, 

 a dark dorsal streak. A black band crossing the base of the caudal and 

 sometimes extending out along the outer rays. No dark line along the 

 sides in formalin specimens, sometimes dark streaks up and down from 

 the median line between muscle segments. 



Genus Pristella Eigenmann. 

 Pristella aubynei sp. no v. 



Type, 50 mm. (No. 1042 Carnegie Museum Catalog of Fishes.) 

 Lama Stop-off. 



Cotypes, 203 specimens, 20-50 mm. Lama Stop-off. (C. M. Cat. 

 No. 1043, a-z ; I. U. Cat. No. 11 735.) 



Cotypes, 50 specimens, 28-46 mm. Cane Grove Corner. (C. M. 

 Cat. No. 1044, a-j ; I. U. Cat. No. 11 736.) 



Cotypes, 21 specimens, 35-49 mm. Maduni Stop-off. (C. M. 

 Cat. No. 1045, a ~ e \ I- U. Cat. No. 11 737.) 



This species is very abundant in the canal from Cane Grove Corner 

 to Maduni Creek Stop-off. I take pleasure in naming the species for 

 Mr. Saint Aubyne, whose guest I was at Lama Stop-off and who did 

 everything in his power to further the interests of my fishing ex- 

 pedition. 



This species is placed in the genus with Pristella riddlei because in 

 the technical characters they agree. There is every probability that 

 they are not immediately descended from the same ancestor. 



Head 3.75; depth 3.5; D. 10; A. 16-18; scales 6-31 to 33-3 

 rarely 4 ; 7 to 9 pores in the lateral line ; eye 2.33 ; interorbital 3. 



Elongate, heavy forward ; ventral profile curved more than the 

 dorsal, which is nearly straight to the dorsal, not depressed over the 

 eye; preventral area broad, rounded, postventral area keeled; pre- 

 dorsal area narrowly rounded. 



Occipital process triangular, very short, equal to \ of the distance 

 from its base to the dorsal. Fontanel widest at the base of the occip- 

 ital process, anterior fontanel slightly shorter than the posterior, tri- 

 angular, its anterior pointed end a little in advance of the middle of 

 the eye. Second suborbital leaving a wide, naked area below a nar- 

 rower one behind. Mouth oblique ; maxillary slender, its anterior 

 margin nearly straight, 2 J in the head; five teeth in the front series 



