92 SILURID^E. 



35. BAGRICHTHYS. 



Bagrichthys, Blcek. Prodr. Silur. p. 130. 



Adipose fin exceedingly long ; a short, high dorsal fin with a pun- 

 gent spine and seven soft rays ; anal fin short. Trunk much com- 

 pressed and elevated. Barbels eight. Each jaw with a band of villi - 

 form teeth, the lower with long moveable labial teeth besides ; teeth 

 on the vomer in a continuous band. Head covered with skin ; eyes 

 without free orbital margin, below the skin. Caudal fin forked ; 

 ventrals with six rays. 



East Indian Archipelago. 



1. Bagrichthys hypselopterus. 



Bagrus hypselopterus, Bleek. Nat. Tydschr. Ned. Ltd. iii. p. 588 c. tab. 

 Bagrichthys hypselopterus, Bleek. Prodr. Silur. p. 131, and All. Ichth. 

 Silur. p. 49. tab. 68. 



B. 7. D. 1/7. A. 15. P. 



i 



10-11" 



Body compressed, with the nape and the base of the dorsal fin 

 much elevated. All the barbels shorter than the head ; mandibulary 

 barbels with short tentacles. Dorsal fin exceedingly high, the spine 

 and the first ray being twice as long, or more than twice as long, as 

 the head ; dorsal spine serrated behind. Adipose fin very long, con- 

 tiguous with the dorsal, higher than the tail. Pectorals as long as 

 the head, with a strong, serrated spine ; ventrals as long as pectorals. 

 Caudal deeply forked, with the lobes more or less produced into fila- 

 ments. 



Sumatra and Borneo. 



a. Type of the species. From Dr. P. v. Bleeker's Collection. 



36. RITA*. 



Rita, Bleek. Prodr. Silur. p. 60. 



An adipose fin of moderate length ; a short dorsal fin with a pun- 

 gent spine and with six (seven) soft rays ; anal fin short. Nostrils 

 distant. Barbels six : two at the maxillaries, two minute ones at the 

 posterior nostrils, and two at the throat. Teeth on the palate gra- 

 nular or molar-like. The upper jaw the longer. Orbit without free, 

 circular eyelid. Caudal forked ; ventral rays six. 



East Indies. 



1. Rita crucigera. 



Pimelodus rita, Ham. Buck. p. 165. pi. 24. fig. 53. 

 Arms rita, Cuv. Sf Val. xv. p. 88. pi. 429. 



> cruciger, Owen, Osteol. Catal. Coll. Surg. i. p. 26. 



Rita buchanani, Bleek. Prodr. Silur. p. 65, and Verhand. Bat. Gen. xxv., 

 Beng. p. 123. tab. 3. fig. 1. 



D. 1/6. A. 12. P. 1/10. 



The upper surface of the head is granulated ; basal bone of the 



* 1. Piiuelodus rama, Ham. Buck. pp. 176, 377. pi. 3. fig. 55. — Brahmaputra. 



