92 SILUEIDJ.. 



35. BAGRICHTHYS. 



Bagrichthys, Bleek. Prodi: Silur. p. 1:10. 



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

 gent spine and seven soft rays ; anal fin short. Trimk 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. 



Bagi-us hypselopterus, Bleek. Nat. Tydschr. Ned. Ind. iii. p. 588 c. tab. 

 Bagrichthys h-s-pselopterus, Bleek. Prodr. Silur. p. 131, and Afl. Ichth. 

 Silur. p." 49. 'tab. 68. 



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



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 t^vice 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. 



Piraelodus rita. Ham. Biich. p. 165. pi. 24. fig. 53. 

 Ariiis rita, Cuv. ^ Val. xv. p. 88. pi. 429. 



cruciger, O^cen, Odeol. Cafal. 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 



* ). Piuielodus rama, Ham. Bitch, pp. 17(). 377. pi. 3. fig. .^)5. — Brahmaputra. 



