442 GEOGRAPHICAL ZOOLOGY. [part iv. 



(15 sp.), Java, Sumatra, and Borneo, with a species in the 

 Ganges, in Siam, and (?) in Amboyna; Callichrous (10 sp.), 

 Afghanistan to Borneo and Java; Sehilbe (5 sp.), Tropical Africa; 

 Eutropius (6 sp.), Tropical Africa and Central India ; Hemisilurus 

 (2 sp.)* Java and Sumatra ; Siluranodon (1 sp.), Nile ; Ailia 

 (2 sp.), Bengal ; Schilbichthys (1 sp.), Bengal ; Lais (1 sp.), Java, 

 Sumatra, Borneo ; PseudetUropius (6 sp.), India and Sumatra ; 

 Pangasius (7 sp.), Ganges, Sumatra, Java, Borneo; Hclicophagus 

 (2 sp.), Sumatra ; Silondia (1 sp.), Ganges. 



Sub-family 3 (Silurid^ Axomalopteile) is confined to 

 Equatorial America ; it consists of the group Hypopthalmina, 

 containing 2 genera : Helogenes (1 sp.), Hypopthalmus (4 sp.), 

 from the country north of the Amazon, Surinam, and the Rio 

 Negro. 



Sub-family 4 (Silurid^e ProteropteRjE) ranges over all the 

 tropical and most of the temperate parts of the globe, except 

 Europe and Australia, It consists of four groups : Bagrina 

 (16 genera), ranging over most of the Old World and North 

 America; Pimelodina (15 genera), confined to Tropical America, 

 except one genus which is African ; Ariina (10 genera), all 

 Tropical regions ; and Bagarina (3 genera), Oriental region. The 

 distribution of the genera is as follows : — 



Bagrus (2 sp.), Nile ; Chrysichthys (5 sp.), Tropical Africa ; 

 Clarotes (1 sp.), Upper Nile; Macrones (19 sp.), India, Ceylon 

 to Borneo, and one species in Asia Minor ; Pseudobagrus (4 sp.), 

 Japan, China, and Cochin China ; Liocassis (5 sp.), Japan, China, 

 Java, Sumatra, and Borneo ; Bagroides (3 sp.), Sumatra and 

 Borneo ; Bagrichthys (1 sp.), Sumatra and Borneo ; Rita (5 sp.), 

 Continental India and Manilla ; Acrochordanichthys (6 sp.), Java 

 and Sumatra ; Akysis (3 sp.), Java and Sumatra ; Olyra (1 sp.), 

 Khasya ; Branchiosteus (1 sp.), Khasya; Amiurus (13 sp.), 

 Nearctic region to Guatemala and China ; Hopladelus (1 sp.), 

 North America ; Noturus (4 sp.), North America ; Sorubim 

 (1 sp.), Amazon ; Platystoma (11 sp.), Tropical South America; 

 LTemisorubim (1 sp.) Bio Negro, Brazil; Platistomatichthys 

 (1 sp.), Bio Branco, Brazil ; PTiractocephalus (1 sp.), Amazon ; 

 Piramutana (2 sp.), Equatorial America ; Platyncmatichthys 



