204 CALIFORNIA ACADEMY OF SCIENCES. 



149, Steindachneria doceana, 



Steindwhn<-i'ht doceana E. & E. Proc. Cal. Acad. Sci. 2d Ser. ii, 



30, 1889 (Kio Doce). 

 Types: Nos. 23,792, 23,793, 23,794; nine specimens; .37-. 74 m. Rio 



Doce. 



This species agrees with St. parahybce in the shape of 

 its caudal, the dentition of the vomer, the length of the 

 barbels and the fin rays. It differs greatly in the shape 

 of the head and the color. 



Head broad, depressed, the depth at the base of the 

 occipital process 2J-3 in its length; its width If; great- 

 est depth of body 2-2|- in the length of the head. Occip- 

 ital process broad, not quite reaching the long, triangu- 

 lar dorsal plate. An elongate frontal fontanel. 



Eye median, 3|-5 in the snout, 3-3| in interocular, 

 8-11 in the head. 



Maxillary barbel reaching to middle of dorsal in 

 smallest to middle of pectoral in largest specimen; men- 

 tals to gill opening; postmentals beyond base of pectoral 

 in smallest specimen, shorter in the larger. 



Dorsal fin as in parahybce. 



Base of adipose J J- longer than base of anal. 



Pectoral spine stout, strongly serrate on its inner mar- 

 gin in the smallest specimen. 



Sides and entire upper surface dark brown with spots 

 and vermiculating markings of light. The unpaired 

 and upper surfaces of the paired fins light, profusely 

 spotted with dark; the spots of the dorsal and pectoral 

 confluent into bars and stripes in the largest specimen, 

 adipose fin colored like the back; ventral surface and 

 lower surface of paired fins plain. 



Head 3f-3J; depth 6i-7. Br. 8-9. D. I, 7-8. A. 14. 



150, Steindachneria parahybae. 



Platystoma parahybcv Steindachner, Siisswasserf. siidostl. Bras, iii, 

 82, pi. ix (Kio Parahyba near Juiz de Fora), in part. 



Steindachneria parahybce Eigeiirn. & Eigeiim. Proc. Cal. Acad. 2d 

 Ser. i, 137, 1888 (Kio Parahyba). 



Habitat : Kio Parahyba . 



