maxillary barbels at least to middle of pectorals, mandibulary 

 ones a little shorter. Distance between origin of dorsal 

 and occipital process 4 ] / 2 5 ! / 2 times in the distance from 

 lastnamed to snout. Caudal rounded, not united with anal and 

 dorsal. Ventrals rounded, extending on anal, about 2 /s f pec- 

 torals. Pectorals rounded, about as long as head without snout, 

 their spine more or less denticulated, as long as or longer 

 than postorbital part of head. Villiform teeth in the maxil- 

 laries in two contiguous quadrangular patches, about twice as 

 broad as long. Mandibulary teeth in two contiguous quadran- 

 gular patches, with the posterior, exterior corner laterally 

 produced. Vomerine teeth in a crescentic band as broad as 

 or narrower than the supermaxillary band, its hindborder 

 more or less prominent in the middle. 16 19 gillrakers, the 

 two anterior ones very short, shorter than branchial filaments. 

 Dark above, belly and underside of head light. Sometimes 

 transverse rows of light spots along the sides of body and tail. 

 Length over 400 mm. 



Nomen in dig. : Ikan leleh (Malay, Sundan. and Javan.). 

 Ikan maut (Gajo, Atjeh). 



Habitat: Java (Batavia!, Bekassi, Tandjong-Oost, Tjampea, 

 Buitenzorg!, Serang!, Bantam, Dano, Tjibilong, Perdana, 

 Tjandjur, Tulong Agung, Tjipanas, Bandung, Situ Bagendit !, 

 Tragan !, Cheribon, Samarang, Ambarawa, Wonosobo, Lesti, 

 Ngantang, Bator, Grati, Palabuan, Lawang!, Dj ember!); Bali; 

 Lombok ! ; Sumatra (Lahat, lakes Singkarah !, Manindjau ! and 

 Toba, Taluk ! Solok ! Fort de Kock, Pajakomboh, Upper-Lang- 

 kat, Deli, Laut Tawar, Atjeh!); Simalur!; Singapore; Banka; 

 Biliton; Borneo (rivers Mahakam, Barito, Kapuas, Sambas, 

 Baram). -- Philippines, Malacca, westwards to Burmah, British 

 India and Ceylon. Brackish and freshwater. 



4. Clarias teysmanni Blkr. 



Clarias Teysmanni Bleeker, Nat. Tijdschr. Ned.-Ind. XIII, 1857, p. 344. 

 Clarias Teysmanni Bleeker, Atl. Ichth. II. 1862, p. 104. 

 Clarias teysmanni Giinther, Cat. Brit. Mus. v. 1864, p. 19. 

 Clarias Teysmanni Vinciguerra, Ann. Mus. Civ. Geneva, X.VI. 1880, p. 164. 

 Clarias Teysmanni Day, Fishes of India 4. 18781888, p. 484. 

 Clarias Teysmanni Perugia, Ann. Mus. Civ. Geneva, XXXIII. 1893, p. 243. 

 Clarias Teysmanni Vaillant, Nouv. Arch. Mus. Hist. Nat. (3). v. 1893, p. 62. 

 ? Clarias pulcher Popta, Notes Ley den Mus. XXVII. 1906, p. 21 (mutilated 

 specimen). 



