136 siLtTRiD^;. 



1. Conorhynchus conirostris. 



Pimelodus conirostris, Cuv. § Vol. xv. p. 204. pi. 436. 

 D. 1/6. A. 20. 

 Head granulated above ; occipital process more than twice as long 

 as broad, joining the triangular basal bone of the dorsal spine ; 

 barbels thin, much shorter than the head. Dorsal spine strong, 

 longer than that of the pectoral fin, three-quarters of the length of 

 the head. Caudal emarginate. 

 Brazil. 



a. Skin, 29 inches long. River Cipo, a tributary of the Rio das 

 Vilhas, Minas Geraes. From the Collection of Mr. Ch. Cumber- 

 land. 



56. N0T0GLANIS* 



Adipose fin long ; dorsal fin with a pungent spine and with ten 

 soft rays ; anal short. Barbels six. Teeth in the jaws villiform ; 

 palate edentulous. The upper jaw is the longer. The ventral "fins 

 six-rayed, inserted below the end of the dorsal fin ; caudal forked. 



Brazil. 



1. Notoglanis multiradiatus. 

 Pimelodus multiradiatus, Kncr, in Sitzgsber. Wien. Acad, xxvii. p. 414. 

 D. 1/10. A. 10. 

 Head granulated above ; the eyes occupy the middle of the length 

 of the head, and their diameter is two-fifths of the width of the 

 interorbital space. The maxillary barbels extend to the anal fin, 

 the outer ones of the mandible to below the dorsal fin. Spines of 

 the fins well developed ; adipose fin one-third longer than dorsal. 

 (Kner.) 



Rio Madeira, Rio Facutu. 



57. CALLOPHYSUS. 



Callophysus, Mull. 8c Trosch. Hor. Ichth. iii. p. 1. 



Callophysus et Pseudocallophysus, Bleek. Nederl. Tydschr. Dierk. 1863, 



p. 101. 

 Pimeletropis, Gill, Proc. Acad. Nat. Sc. Philad. 1869, p. 196. 



Adipose fin very long ; dorsal fin short, with a feeble spine and 

 with six rays ; anal fin rather short. Each jaw with a series of 

 6mall flattish teeth, behind which sometimes another series of smaller 

 ones; palate edentulous. Barbels six. Ventral fins with six or 

 seven rays. 



South America. 



1. Callophysus lateralis. 

 Pimeletropis lateralis, Gill, I. c. 



B. 8. D. 1/6. A. 13. P. 1/12. 

 Occipital process elongate, four times as long as broad, not ex- 

 * 1. Pimelodus arekaima, Schomburgk, Fish. Guiana, i. p. 178. pi. 5. — Guiana. 



