REVIEW OF THE ERYTHRININ^. Ill 



Ventrals sometimes reachiog anal, usually falling far short 

 of the anal. 



5. Pyrrhulina brevis. 



Pyrrhidlna brevis Steiud., '75a, 6, pi. 1, fig. 3-4 (Mouth of Rio Negro; 



Cudaja^; Tabutinga; Rio Negro, near Mauaos). 

 Over twenty specimens, the largest .065 m. 

 Tabatinga; Lago Alexo; Cudajas; Manaos; Montalegre; Obidos; Villa 



Bella. 



This species is closely related to semifasciata and guttata. 



In the female the sides are plain with sometimes lighter 

 spots at the base of the scales, as in guttata. There is usu- 

 ally a dark band on the side of the head. In the males 

 there is a dusky line along the head and the sides, regions 

 below the level of this line in the adult are also dusky. 

 The fins in the male are also slightly margined with dark. 

 The dorsal spot is indistinct. In three specimens .028 m. 

 long, from Tabatinga, there is a conspicuous dark serrate- 

 margined band from the caudal to the head, and a narrower 

 smooth-margined one on the head. The dorsal spots in 

 these specimens are much more marked than in the larger. 

 Four specimens from Montalegre, the smallest .03 m., have 

 the sides plain, and two male specimens from Cudajas, .055 

 m. , have a dark blotch behind the head. The fins are much 

 better developed in the male than in the female. The ven- 

 trals in the male reach to the anal, and the anal to the 

 caudal. The longest ray of the dorsal is little longer than 

 the head. 



Our specimens do not agree with Dr. Steinclachner's 

 figures in the position of the dorsal and anal. 



6. Pyrrhulina maxima sp. n. 



Type No. G343; one specimen. .08 m. to base of caudal. Tabatinga. 

 Boiirget. 



This species is closely related to P. brevis and P. nattereri. 

 Its color and dentition distinguish it from nattereri, while 

 its long caudal peduncle, the position of the dorsal and 

 color serve to distinguish it from brevis. The scales are 



