392 Mr. C. T. Regan— A Recision of 



5. Pyrrhulina australis. 



Pyrrhulina mistrale, Eigeum. & Kennedy, Proc. Acad. Philad. 1903, 

 p. 508. 



Depth o£ body 3| to 4^ in the length, length of head 3| 

 to 4^. Caudal peduncle i to | length of head. Snout 

 shorter than diameter of eye, which is 3 in the length of 

 head ; interorbital width 2 to 2^. 20 to 23 scales in a 

 longitudinal series. Dorsal 10-11 ; origin equidistant from 

 head and base of caudal or a little nearer to head. Anal 11-12. 

 Olivaceous ; a blackish stripe from lower jaw to eye, usually 

 continued as a brownish stripe on postorbital part of head ; 

 a black spot on dorsal fin. 



La Plata ; Rio Grande do Sul. 



1-3. 30-40 mm. Colonia Eisso, Upper Paraguay, Borelli. 



4-5. 30 mm. Oarandasinho, Matto Grosso. „ 



6-11. 25-45 mm. Corumba, „ ,, Moore. 



12-14. 30-35 mm. Descalvados, „ „ Ternetz, 



15-16. 25-30 mm. Monte Sociedad, Chaco. „ 



17. 25 mm. R. Grande do Sul. Von Ihering. 



6. Pyrrltulina hrevis. 



Pyrrhulina brevis, Steind. Sitzungsb. Akad. Wien, Ixxii. 1876, p. 11, 

 pi. i. figs. 3-4 ; Eigenm. & Eigeum. Proc. Calif. Acad. (2) ii. 1890, 

 p. 111. 



Depth of body nearly equal to length of head, 3| to 4 in 

 the length of the fish. Caudal peduncle | or | length of 

 head. iSnout nearly as long as or even a little longer tlian 

 diameter of eye, which is 3^ to 4 in the length of head; 

 interorbital width 2^ to 3. 20 to 22 scales in a longitudinal 

 series. Dorsal 9-10, moderately elevated; origin equi- 

 distant from operculum and base of caudal, or a little nearer 

 the former. Anal 11-12. Olivaceous ; a dark stripe from 

 eye round lower jaw ; a dark spot on dorsal fin ; pelvic and 

 anal fins with narrow blackisli edge. 



Amazon. 



1. 85 mm. Manaos, Sutton. 



3. COPEINA. 

 Copeina, Fowler, Proc. Acad. Philad. 1906, p. 294. 



Differs from Pyrrliulina in the uniserial praemaxillary 

 teeth. 



