262 



Nomen indig. : Wakkal (Java), Rios tjaring (Banjermassin), 

 Lantjang (Mahakam), Juara (Djambi). 



Habitat: Java (Surakarta, Wonogiri, Kediri !, Gempol, 

 Surabaya!); Sumatra (Djambi!); Borneo (rivers Kapuas, Barito, 

 Mahakam !). 



In rivers. 



Doubtful species. 



About Pangasius delicatissimus Blkr., recorded by Bleeker 

 in a note on p. 73, Atlas ichthyologique II, 1862, from 

 Krawang, Java, nothing else is known besides his very short 

 description after a drawing, made by an artist of the former 

 ^Commission for natural history research in Netherlands India". 

 The n bandelette nacree qui commence sur le museau, monte 

 vers la tempe et suit la courbure du dos jusque pres de la 

 nageoire caudale" which distinguishes it according to Bleeker 

 from all other species of Pangasius, exists, after our obser- 

 vation, also in P. macronema. 



6. Fam. BAGARIDAE. 



Dorsal fin short, with a pungent spine and 6 7 soft rays, 

 placed anteriorly on the trunk in advance of the ventrals. 

 Adipose fin equal to anal and opposite to it. Lower surface 

 of head and abdomen flat. Paired fins horizontal. Pectorals 

 with a pungent spine. Ventrals 6-rayed. Caudal forked. Eyes 

 subcutaneous. Anterior and posterior nostrils placed close 

 together, a membranaceous fold with a short nasal barbel 

 between them. Mouth transverse or crescentic, at the lower 

 side of the snout, the upper jaw being prominent. Eight 

 barbels, a pair of small nasal ones, maxillary pair with a stiff 

 base, a mandibulary and a mental pair in a curved or trans- 

 verse line. Palate edentulous. Small teeth, sometimes mixed 

 with larger ones, in bands on the jaws. Gillmembranes con- 

 fluent with the isthmus or free. 5 12 branchiostegals. 



Key to the genera. 



I. A thoracic adhesive apparatus between the pectorals 



composed of longitudinal plaits of the skin Glyptosternum p. 263. 



II. No adhesive apparatus. 



A. Head compressed, gillmembranes confluent with 



