1. CLARIAS. 19 



width between the gill-openings is but little more than two-thirds 

 of its length. liarbels long : the nasal extending to the base of the 

 occiiiital process, and that of tlie maxillary to the extremity of the 

 pectoral. The pectoral spine is finely serrated, the serrature being 

 hidden below the skin ; its length is two-thirds, or somewhat less 

 than two-thirds, of that of the fin. 

 China. 



«. Five and one-third inches long. China. Presented by J. R. 



Keeves, Esq. — Type of CI. puVicaris. 

 h, c-d. Young. China. 



e-ff. Young. Hongkong. Presented by J. C. Bowring, Esq. 

 h-i. Young. From the Haslar Collection. 



13. Clarias abbreviatus. 



Cm. Sf Val. XV. p. 886. 



D. 62. A. 32. 

 The height of the body is one-fifth of the total length ; maxillary 

 barbel thick, not extending on to the gill-opening ; nasal barbel 

 longer and more slender. ( Val.) 

 Macao. 



14. Clarias melanoderma. 



Clarias melanoderma, Bleek. Verh. Bat. Gen. xxi., Silur. Batav. p. 54; 



Prodr. Silitr. p. 341 ; and Ail. Ichth. Silur. p. 102. tab. 97. fig. 2. 

 melasoma(melanosoraa),5/eeA. iVa<. Tydscltr.Ned.Ind. iii.p.427. 



D. 68-73. A. 51-61. P. 1/9. 



Caudal fin free. Vomerine teeth obtuse, forming a crescent-shaped 

 band which, in its middle, is rather broader than that of the inter- 

 maxiUaries. Head rather smooth, its length being one-foui'th of the 

 total (without caudal); the occipital process is very obtuse. Barbels 

 long ; those of the nostril reach to the end of the head, those of the 

 maxillary beyond the extremity of the pectoral. Pectoral spine 

 strong, much compressed, rather more than two-thirds of the length 

 of the fin ; its extremity is ai-med with rather strong, recurved spi- 

 nous teeth. 



Java, Sumatra, Banka, Borneo. 



a. Adult. Purehased of Mr. Frank. 



Bleeker has observed two specimens in which the band of vomerine 

 teeth was divided into two by a toothless space in the middle ; another 

 specimen had the last ray of the dorsal and anal fins united with the 

 caudal. 



15. Clarias teysmanni. 



Bkeh-r, Nat. Ti/dscfir. Xederl. Ind. xiii. p. ;344; Prodr. Silur, p. 348; 

 and Atl. Ichth. Silur. p. 104. tab. 99. fig. 1. 



D. 70-77. A. 60-63. P. 1/7-9. Vert. 16/41. 

 Caudal fin free. Vomerine teeth obtuse, forming a crescent-shaped 

 band which, in its middle, is not broader than that of the intor- 

 maxillaries. Head rather smooth, its length being two-ninths of the 



c2 



