216 



THE AMERICAN CHARACIDAE. 



narrower than the parietal, sUghtly longer than the parietal without the occipi- 

 tal groove. Second suborbital leaving a narrow naked margin behind and 

 below. Mouth moderately large; snout short, about half the length of the eye. 

 Maxillary 1.25 in the eye. Mandible equal to the eye. Premaxillary with 

 five small conical teeth in the outer row and five tricuspid teeth in the inner 

 row. Maxillary with seven small conical teeth closely packed together. Den- 

 tary with a series of four rather broad tricuspid teeth. Probably followed 

 by several minute ones on the sides. 



Caudal naked. Anal sheath reduced to a single small scale not extending 

 onto the first anal rays. Pores developed on the first 9 scales of the lateral 

 Une, the rest of the scales in the series with a shallow notch on the free margin. 



Origin of the dorsal equidistant from the snout and caudal ; penultimate 

 ray 1.66 in the longest which is 3.2 in the length. Caudal not so long as the 

 head. Origin of the anal on the vertical from the second scale behind the 

 dorsal. Anal emarginate, the longest ray about 1.33 in the length of the base. 

 Ventrals on the vertical from the first dorsal ray. "\^entrals just reaching the 

 anal. Pectorals short and paddle shaped with a fringe of soft rays. 



Humeral spot vertically elongate, very faint. No caudal spot but a few 

 chromatophores at the base of each caudal lobe. Lateral stripe very dim. 

 Scales of the back outhned with dusky. Fins without pigment. 



33. Hyphessobrycon stictus Durbin. 



Plate 22, fig. 1. 



Hyphessobrycon stictus Durbin, Ann. Carnegie mus., 1909, 6, p. 71; Eigenmann, Rept. Princeton univ. 

 exped. Patagonia, 1910, 3, p. 437; Mem. Carnegie mus., 1912, 6, p. 342, pi. 49, fig. 7. 



Habitat. — Gmana, Amazon. 



Specimens examined. 



Catalogue Number of 



number specimens 



1197 C. Type 1 



1435 C, 11S9.5 I. Paratj-pes 108 

 14,36 C, 11896 I. Paratypes 117 



1437 C. Paratype 1 



1438 C, 11897 I. Paratypes 10 



1439 C. Paratype 1 



3079 C. 4 



3080 C. 2 



110 



Size 

 in mm. 

 38 



22-39 



33-36 

 36-40 

 27-43 



Locality 

 Lama Stop-Off 

 Maduni Creek 

 Lama Stop-Off 

 Rockstone 

 Christianburg Canal 

 Cane Grove Corner 

 Santarem 

 Manaos 

 Hubabu Creek, Guiana 



Collector 

 Eigenmann 

 Eigenmann 

 Eigenmann 

 Eigenmann 

 Eigenmann 

 Eigenmann 

 Haseman 

 Haseman 

 Ellis 



