io8 



surrounded by rather thin continuous lips. Barbels small, 

 especially the rostral ones, which may be wanting. A recumbent 

 spine in front of the dorsal, pointing forwards, sometimes 



Fig. 48. Mystacoleucus padangensis (Blkr.) X Vi- 



Fig. 49. Mystacoleuciis marginatus (C. V.) 

 Portion of back carrying anterior part 

 of dorsal fin </, to show the procum- 

 bent spine s in front of dorsal. 

 Enlarged. 



Fig. 50. Pharyngeal teeth of 

 Mystacoleucus marginatus (C.V.) 



hidden by the scales. Gillopenings extend to below angle of 

 praeoperculum. Gillmembranes united with isthmus. Gillrakers 

 short, conical. Pharyngeal teeth obtuse, uncinate, 4.3.2 2.3.4. 

 Distribution: Fresh water of Sumatra, Java, Borneo and 

 Malacca. 



Key to the species. 



1. L. 1. 26 29. Barbels 4 M. marginatus p. 108. 



2. L.I. 37 39. Barbels 2 or wanting M. padangensis p. HO. 



i. Mystacoleucus marginatus (C.V.). 



Bar bus obtusirostris van Hasselt, Algem. Konst- en Letterbode II. 1823, p. 132. 



(no description). 



Barbus marginatus Cuvier & Valenciennes, Hist. Nat. Poissons XVI. 1842, p. 164. 

 Barbus obtusirostris Cuvier & Valenciennes, Hist. Nat. Poissons XVI. 1842, p. 167. 

 Barbus marginatus Bleeker, Nat. Tijdschr. Ned. Indie V. 1853, p. 518. 

 Systomus (Barbodes) marginatus Bleeker, Icht. Arch. Ind. Prodr. II. Cyprini, 



1860, p. 351. 



