2OI 



2. Corner of mouth reaches to the vertical through anterior 



border of eye, 9 gillrakers W. Iceri p. 202. 



3. Corner of mouth reaches below frontpart of eye, 9 



gillrakers W. miostoma p. 202. 



i. Wallago attu (Bl. Schn.). 



Silurus attu Bloch, Schneider, Syst. Ichth. 1801, p. 378. 



Silurus Mulleri Bleeker, Nat. Geneesk. Arch. Ned. Ind. III. (2), 1846, p. 289. 



Wallago Mulleri Bleeker, Nat. Tijdschr. Ned.-Ind. III. 1852, p. 585. 



Wallago Rusellii Bleeker, Verb. Bat. Gen. XXV. 1853. Nalez. Ichthyol. Fauna 



Bengalen p. 108. 



Wallago attu Bleeker^ Atl. Ichth. II. 1862, p. 79. (See Synon.). 

 Wallago attu Gunther^ Cat. Brit. Mus. v. 1864, p. 36. 

 Wallago attu Day^ Fishes of India 4. 18781888, p. 479. 



B. 1 8 20; D. I. 4; A. 8693; P. I. 1314; V. 10. 



Height 5 7, head 4 3 / 5 4 ! / 4 , eye 6'/ 2 J O, entirely above 

 the mouthopening, its hindborder a little before the hind- 

 border of the mouth. Interorbital space nearly 3 times in the 

 convexity of the interorbital space, shout produced, spatulate, 

 2 3 / 4 in length of head. Profile descending obliquely from 

 dorsal to snout in a more or less straight line. Lower jaw 

 prominent. Maxillary barbels extending to the anterior part 

 of the anal, mandibulary barbels about as long as snout. 

 Height of dorsal more than length of postorbital part of 

 head, its distance from the snout nearly 2 ! / 2 in its distance 

 from the caudal. Anal not reaching to caudal, which is deeply 

 incised. Ventrals behind the dorsal. Pectorals about i ! / 2 in 

 length of head, their spine entire, feeble, their stiff part nearly 

 as long as the postorbital part of the head. 21 very short gill- 

 rakers. In the jaws broad bands of depressible, pointed teeth, 

 the posterior rows increasing in size, those on the vomer also 

 depresible, in two oblique oval patches. Lateral line very 

 conspicuous. Blackish above, margaritaceous below. Fins hyaline 

 or more or less dusky. Length over 500 mm. 



No in en indig.: Limpok djambal, Tjaba, Tjangop (Mai. 

 Batavia). 



Habitat: Java (Batavia, Udjong Krawang, Udjong Tan- 

 gerang, Gempol) ; Sumatra (Palembang !). Siam, Burmah, British 

 India and Ceylon. 



In rivers. 



