8 4 



reaching on ventrals. Caudal deeply incised. Least height of 

 caudal peduncle nearly twice in head and more than i 1 / 2 times 

 in its own length, surrounded by 14 scales, 9 of which above 

 the lateral lines. Silvery, generally a blackish band along the 

 middle of the side. Length 125 mm. [Description made after 

 specimens from British India]. 



Habitat: Singapore (Karoli). British India, Nicobars and 

 Ceylon. We have included this species as Mr. J. KAROLI 

 mentions it in his list from Singapore, which is remarkable, 

 as it was never found since. 



3. Danio Hamilton Buchanan. 

 (HAMILTON BUCHANAN, Fishes of the Ganges 1822, p. 321, 390). 



Oblong, head pointed. Mouthopening strongly ascending, 

 rather small. Lower jaw prominent, provided at its sym- 

 physis with a knob, fitting in a more or less superficial 

 emargination of the upper jaw. Barbels generally 4 (one 

 rostral pair and one at the corner of the mouth), or 2, 

 rudimental or absent. Praeorbital quadrangular, suborbital very 



Fig. 31. Danio albolineata (Blyth) X 2 - 6 - 



broad. Dorsal with 7 to 16 branched rays, originating before 

 anal, its hinder half at least above that fin, which is composed 

 of numerous rays. Ventrals short, far before dorsal. Scales 

 large or of moderate size, forming a sheath along the base 

 of the anal. Lateral line, if present, abruptly bending down, 

 if complete, running along lower half of tail. Pseudobran- 

 chiae present. Gillopenings reaching to below eye, gillmem- 

 branes connected with isthmus. Pharyngeal teeth 5.3.2 2.3.5, 

 uncinate. 



We divide this genus in the two following subgenera: 



