208 



eye. Suborbitals broad, covering nearly the entire cheek. Dorsal 

 short, without osseous ray and with 8 branched rays, its 

 origin before that of ventrals. Anal short, with 5 branched 

 rays. Ventrals and pectorals nearly equal in length, shorter 

 than head. Caudal bifurcate. Scales of moderate size, lateral line 

 running in the middle of the tail. Pharyngeal teeth 5.4.2 2.4.5. 

 Branchial openings rather narrow, gillmembranes broadly united 

 to isthmus. 



Distribution: Fresh water of Indo-australian Archipelago 

 (Sumatra, Java, Borneo). Malacca, Indo-China. 



i. Barbichthys laevis (C.V.) 



Bar bus laevis Cuvier & Valenciennes, Hist. Nat. Poissons XVI. 1842, p. 192. 

 Dangila lipocheilus Cuvier & Valenciennes, Hist. Nat. Poissons XVI. 1842^.232 



(according to Bleeker). 

 Bar bus brachynemus Bleeker, Verb. Batav. Gen. XXIII. (1849) ^50, Ichth. 



Midden en Oost-Java, p. 18. 



Barbus gobioides Bleeker, Nat. Tijdschr. Ned. Indie III. 1852, p. 592. 

 Barbus laevis Bleeker, Nat. Tijdschr. Ned. Indie V. 1853, p. 447. 

 Barbus taeniopterus Bleeker, Nat. Tijdschr. Ned. Indie XIV. 1857, p. 475 



(mutatio nominis specific!). 

 Barbichthys laevis Bleeker, Ichth. Arch. Ind. Prodr. II. Cyprini 1860, p. 209. 



Atl. Ichth. III. 1863, p. 49. 



Barbichthys laevis Giinther, Cat. Brit. Mus. VII. 1868, p. 158. 

 Barbichthys laevis var. sumatranusVolz, Revue Suisse de Zoologie XII. 1904, p. 478. 



6J 



0.3.8; A. 3.5; P. 1.15 ; V. 1.8; L.I. 37 39; L.tr.jtJ. 



6^ 



Height about 3 ! / 2 in length, 4.7 5 in length with caudal. 

 Head 3.4 3.5, 4.7 4.8 in length with caudal. Eye 4, some- 

 what more than half snout and half interorbital space. Barbels 

 subequal, about half eye. Origin of dorsal much nearer to snout 

 than to root of caudal, separated by 12 scales from occiput, 

 opposite to 8th scale of lateral line. Dorsal concave, its height 

 less than length of head. Anal truncate, about equal to head 

 without snout. Ventrals slightly shorter than pectorals, their 

 origin separated by 4 scales from nth O r I2th scale of lateral 

 line. Pectorals about */ 3 shorter than head. Caudal bifurcate, 

 the lobes pointed, longer than head. Least height of caudal 

 peduncle less than its length, more than twice in head, sur- 

 rounded by 1 6 scales. Silvery, back dark. A blackish intra- 

 marginal band on each caudal lobe, in young specimens a 

 black band across the middle of the dorsal. Length 340 mm. 



