South-American Characid Fishes. 391 



? Pt/rrhulvm VKtxima, Eigenui, & Eigenui. t. c. p. 111. 



? Fi/rr/iuliiia lata, Fowler, Proc. Acad. Philad. 1906, p. 294, fig. 1. 



Depth of body 3|- to 4^ in tlie length, length of head 3| to 

 4^. Caudal peduncle ^ to | the lengtii of head. Snout as 

 long as or shorter than diameter of eye, which is 3 to 3f in 

 the length of head ; interorbital width 2^ to 2|. 22 to 25 

 scales in a longitudinal series. Dor.sal 10 ; origin equidistant 

 from eye or postorbital part of head and base of caudal. Anal 

 10-12. Scales sometimes with pale bases and dark margins. 

 A dark stripe from lower jaw through eye, ending on anterior 

 part of body ; sometimes a long dark median spot on back 

 between head and dorsal fin and a smaller one just in front of 

 dorsal fin ; a blackish spot on dorsal fin. 



Amazon; Guiana; (yolombia. 



1-4. 35-70 mm. Nickafaroo, Brit. Guiana. Eigenmanu. 



5-9. 45-55 mm. Christiansburg, Brit. Guiana. „ 



10-14. 40-85 mm. Holmia, Brit. Guiana. „ 



15-16. 45-55 mm. Honda, Colombia. Leighton. 



17. 50 mm. Bogota, „ Cutter. 



In these specimens the dark stripe usually runs on only 

 2 to 4 scales of the body; in the larger ones it is continued 

 backwards, as shown in Steindachner's figures ; in the 

 smaller fish the mid-dorsal spots are absent. 



P. lata is evidently closely reUited to P. semifasciata, even 

 if it be distinct. The saddle-shaped spot on the back would 

 easily be formed by the increase in size of the two spots seen 

 in P. semifascinta. 



P. maxima is based on a single specimen, and as described 

 seems to differ from P. semifasciata only in the fewer scales ; 

 but " the scales are partly lost, so an exact count is impossible.^' 



4. Pyrrhulina vittata, sp. n. 



Depth of body 3^ in the length, length of head 3f. 

 Caudal peduncle | length of head. Diameter of eye o in 

 the length of head, interorbital width 2. 20 scales in a 

 longitudinal series. Dorsal 11 ; origin equidistant from 

 prseoperculum and base of caudal. Anal 11. A dark stripe 

 from lower jaw through eye, ending in a spot just behind 

 head ; 3 blackish bars on body, the first above end of pectoial, 

 the second running upwards from base of anal, the third in 

 front of the caudal ; a blackish spot on dorsal fin. 



Amazon. 



1. 28 mm. (type). Obidos. Racbow. 



