260 THE AMERICAN CHARACIDAE. 



one or two additional rows of scales between the lateral line and the dorsal 

 and usually one more than the type from the lateral Une to the ventrals. The 

 anal varies from 22-25. The color-differences of coiirse count for little because 

 the type is extremely faded. The himieral spot is very large and heavy; the 

 caudal spot is continued forward as a dark band and to the tips of the middle 

 caudal rays. The lateral line in one case lacks five pores of being complete. 

 The species is evidently closely related to A. wappi. 



22. AsTYANAX (PoECiLURiCHTHYs) GOYACENSis Eigenmann. 



Astyanax goyacensis Eigenmann, Bull. M. C. Z., 1908, 52, p. 96. 



One specimen. 20692 part Type. 76 mm., to base of caudal. Goyaz. 

 Honorio. 



This specimen differs in shape from all specimens of A. bimaculatus from 

 Goyaz, so that it could not be confounded with them. It is much more elon- 

 gate and heavier in front. 



Denticles of the teeth of the second row of the premaxillary in a deep 

 crescent. 



Head 4; depth 2f; D. 11; A. 25; scales 7-38-5 ; eye 3.4; interorbital 2.25; 

 width of body 2xt in its depth (over Sin A. bimaculatus) ; pectorals not reaching 

 ventrals; no interpolated rows of scales over anal; jaws equal (the teeth of the 

 outer row of the premaxillary exposed when the mouth is closed in A. bimacula- 

 tus) second suborbital covering the entire cheek (leaving a naked margin in 

 A. bimaculatus); one maxillary tooth; scales above the anal with four or more 

 striae. 



The narrow caudal spot continued to the end of the middle rays. 



23. Astyanax (Poecilurichthys) orthodus Eigenmann. 

 Plate 42, fig. 3. 



Astyanax orthodus Eigenmann, Proc. U. S. N. M., 1907, 33, p. 27 (Truando); Ilept. Princeton univ. 

 exped. Patagonia, 1910, 3, p. 433. 



Habitat. — Western Colombia in both Pacific and Atlantic drainage. 



