Key to the i ndo-australi an species. 



a. Eight barbels. D, n 12. Head and body with 



three broad transverse bands B. macr acanthus p. 23. 



b. Six barbels. D. 13 15. Body with 13 15 cross bars B. hymenophysa p. 24. 



i. Botia macracanthus (Blkr). 



Cobitis macracanthus Bleeker, Nat. Tijdschr. Ned. Indie. III. 1852, p. 603. 

 Hymenophysa macracanthus Bleeker, Ichth. Arch. Ind. Prodr. II. Cyprini, 



1860, p. 62. 



Botia macracanthus Bleeker, Atl. Ichth. III. 1863, p. 5. 

 Botia macracanthus Giinther, Cat. Brit. Mus. VII. 1868, p. 368. 

 Botia macracanthus Volz, Zool. Jahrb. Abth. Syst. XIX. 1903, p. 405. 

 Botia macracantha Fowler, Proc. Acad. Nat. Sci. Philadelphia (2) LVII. 1905, 



p. 474. 



B. 3; D. II; A. 8; P. 1416; V. 9. 



Head 3, a little less than height. Eye 4 to more than 6, 

 situated in the posterior half of the head. Suborbital spine 

 about one and a half times the diameter of eye. Mouthopening 

 horse-shoe shaped, the very small lower jaw totally inclosed 

 within the upper jaw. Lips thick, lamellated. Eight verrucose 

 barbels; besides the 4 

 rostral ones, one be- 

 hind each angle of the 

 mouth and two small 

 ones at the mandibular 

 symphysis. Origin of 

 dorsal midway be- 

 tween end of snout and 

 end of shortest caudal 

 rays. Length of caudal 

 peduncle 2 / 3 of its 

 greatest height. Yello- 

 wish brown with three 

 broad transverse black bands, the first, narrow one, through 

 the eye, the second before the dorsal, the third between poste- 

 rior end of dorsal and anal, including both fins in older specimens. 

 With growing age the median fins get also dark. Length 

 over 300 mm. 



Nomen in dig. : Matjan (Malay. Sumatra); Getjuban (Lam- 

 pong); Bidju bana (Djambi); Languli (Mahakam). 



Habitat: Sumatra (Telok Betong, rivers Pangabuang, Musi 



Fig. 7. Botia macracanthus (Blkr.). Nat. size. 



