344 CALIFORNIA ACADEMY OF SCIENCES. 



and occiput; caudal emarginate; anal placed entirely 

 behind the dorsal; origin of ventrals equidistant from 

 bases of caudal and pectoral. 



Light brown; entire upper surface with rather large 

 dark brown spots; a series of larger dark spots along the 

 middle line of the sides, the spots becoming larger to- 

 wards the tail; caudal with a few, faint dark spots. 



Head5J; D. 9; A. 7. 



281, Stegophilus macrops, 



Stegophilus macrops Steindacliner, Flussfische Siidam. iv, 28, pi. vi, 

 fig. 2-2a, 1882 (Lake Maiiacapuru, above Manaos); Eigenm. & 

 Eigenm. Proc. Cal. Acad. 2d Ser. ii, 55, 1889. 



Habitat: Lake Manacapuru. 



This species is known only from the types; there are 

 no specimens in the Museum of Comparative Zoology. 



282, Stegophilus insidiosus, 



Slcgophilxs insidiosus Reinhardt, Naturhist. Foren. Vidensk. Meddel. 

 1858, 79, pi. ii (Rio das Velhas); Gitnther, Cat. Fish. Brit. Mus. 

 v, 276, 1864 (copied); Liitken, Vidensk. Selsk. Skr. 1875, 135 

 and i, figs. 1-3 (Eio das Velhas); E. & E. 1. c. 



Habitat: Eio das Velhas. 



283, Stegophilus reinhardtii, 



Slegophilus reinhardtiiSteindachner, Flussfische Sudani, iv, 28, pi. 



vi, fig. 1, 1882 (Lake Manacapuru; Rio lea; Montalegre; Teffe; 



Tabatinga); E. & E. 1. c. 

 Habitat: Solimoeiis and tributaries. 



This species seems to have been collected at several 

 places during the Thayer expedition, but no specimens 

 could be found in the museum of Comparative Zoology. 



LXV. VANDELLIA. 



Vandellia Cuv. & Val. Hist. Nat. Poiss. xviii, 386, pi. 

 547, 1846 (cirrhosa). 



Type: Vandellia cirrhosa Cuv. & Val. 



This genus is very closely related to Stegophilus from 

 which it differs in the dentition and the position of the 

 mouth. 



Teeth pointed, in a single series on the intermaxil- 



