FISHES OF THE PHILIPPINE ISLANDS AND ADJACENT SEAS 735 



Uhlarias Scopoli, Introd. Hist. Nat., p. 455, 1777. (Type, Silurus batrachus 

 Liuuaeus.) (Evident misprint for Clarias.) 



Clarius Bi^eeker, Act. Soc. Sci. Indo-Nc^erl., vol. 4, p. 28, 1858. (Type, Silurus 

 batrachus Linnaeus.) 



Macropteronotus LACi:pii;DE, Hist. Nat. Poiss., vol. 5, p. 84, 1803. (Type, 

 Macropteronotus charmuth La.cep^6.e= Silurus anguillaris Linnaeus, desig- 

 nated by Jordan and Evermann, Genera of Fishes, pt. 1, p. 65, 1917. ) 



Cossyphus (not Valenciennes) McCi^lland, Calcutta Journ. Nat. Hist., vol. 4, 

 p. 403, 1844. (Type, Cossyphus ater 'M.cGleUa.n(l=Macropteronotus jagur 

 Buchanan-Hamilton. ) 



Phagorus McClelland, Calcutta Journ. Nat. Hist., vol. 4, p. 403, 1844. (Type, 

 Cossyphus ater McClelland, virtually. Phagorus McClelland proposed to 

 replace Cossyphus McClelland.) 



Body well elongated, long tail tapering. Head greatly depressed. 

 Eye well advanced in head, lids free. Sides of head protected by 

 bony plates. Branchiostegals 9. Air bladder with bony sheath 

 formed by transverse processes of fourth and fifth vertebrae. 

 Vertebrae 60 to 78. Males with long conic anal papilla. Paired 

 fins well developed. 



Throughout Africa and western Asia to India, Ceylon, Burma, 

 Siam, Malaya, East Indies, Philippines, Indochina and China. 



ANALYSIS OF SPECIES 



a\ Pectoral spine smooth, rough or with few and not very prominent serratures. 



l»\ Dorsal and anal united with caudal, at least with its base nieuhofi 



&". Median fins not united. 

 c\ Dorsal 60 to 78 ; anal 45 to 63. 



d\ Occipital process triangular, with blunt top, height twice its base; 



front border of fontanel reaches opposite line through middle of 



eyes or farther forward. 



e\ Space between dorsal fin and occipital process 4^/^ to 5% in head from 



snout end to occipital process; head to occipital process 3^/^ to 



3% in body without caudal batrachus 



el Space between dorsal fin and occipital process 2% in head from 

 snout end to occipital process, 4 or 5 in body without caudal. 



teijsmanni 



d'. Occipital process triangular, top rounded, height nearly 3 times base; 



front border of front fontanel nearly reaches opposite hind border 



of eyes leiacanthus 



c". Dorsal 58 to 63 ; anal 38 to 40 fuscus 



a-. Pectoral spine with more or less vertical strong teeth on front edge. 



dussumieri 

 CLARIAS NIEUHOFI Valenciennes 



Clarias nieuhofi, Valenciennes, Hist. Nat. Poiss., vol. 15, p. 386, 1840 [on 

 Bontael of negenoogeii Nieuhof, Gedenkw. Zee en lantreize, vol. 1, pt. 2, p. 

 271, 1682 (type locality: Oostindien)].— Bleekeb, Atlas Ichth, Ind. N^erland., 

 vol. 2, pi. (51)99, fig. 2, 1S62.— GiJNTHEE, Cat. Fishes British Mus., vol. 5, 

 p. 20, 1864 (Philippines).— Eleka, Cat. Fauna Filip., vol. 1, p. 566, 1895 

 (Philippines).— SuvATTi, Index Fish. Siam, p. 84, 1937 (Nong Kho; Trat 

 River, Khau Saming). 



