388 lABTRINTHICI. 



Polyacanthus fasciatus, Cuv. 8f Vol. vii. p. 369. 



Colisa vulgaris, Bleek. Verhand. Batav. Gen. xxv., Benq. en Hindost. 

 p. 94. 



]). ^7 (23-28). A. 11^^ (29-33). L. lat. 30-31. L. transv. 5/10. 



Ca3c. pylor. 2. Vert. 8/17. 



Prteorbital serrated ; caudal fin subtruncated. Body with about 

 twelve oblique dark cross-bands ; dorsal and caudal fins with reddish, 

 yellowish, or blackish spots ; immature specimens with a black spot 

 oa the root of the caudal fin. 



Bengal and Hindostan. 



a-h, c-d, e,f-h, i-l, m-t, u. Adult, half-grown, and young. East 



Indies. 

 V. Adult : very bad state. Calcutta. From the Collection of Messrs. 



V. Schlagintweit. 

 tv. Adult : stuffed. Calcutta. From Mr. Blyth's Collection. 

 X, y. Adult : stuffed. Presented by Sir A. Smith. 



2. Trichogaster unicolor. 



Colisa unicolor, Cuv. Sf Val. vii. p. 368. 



1». g-. A. -. 



Praeorbital not denticulated. Caudal fm rounded. Coloration 

 uniform. {Cuv.) 



Estuaries near Calcutta. 



9. BETTA. 



Betta, Bleek. Verhand. Batav. Genootsch, xxiii., Lahyrmth. p. 12, and 

 Midden- en Oost-Java, p. 14. 



Body compressed, oblong ; operculum without spine or serrature. 

 Small fixed teeth in the jaws, none on the palate. Dorsal fin short, 

 on the middle of the back, without any pungent spine ; anal fin 

 long. Ventral fin with five soft rays, the outer one being produced. 

 Lateral line interrupted or absent. Air-bladder and pyloric append- 

 ages none {B. pugnnai). 



Fresh waters of the East Indies. 



1. Betta trifasciata. 



Bleek. I. c. 



B. 6. D. |. A. ^. L. lat. 26. 



Lateral line inconspicuous. Three black bands from the opercu- 

 lum to the caudal fin. (BL) 



Ambarawa (Central Java), 1500 feet above the sea. Sumatra. 

 Banka. Biliton. 



