1907.] AFRICAN SILURID FISHES. 1071 



Clarias anguillaris, part,, Grilntlier, Oat. Fish. v. p. 14 (1864). 

 Clarias hudgetti Boulenger, Proc. Zool. Soc. 1900, p. 513. 



Depth of body 6| to 7| times in total length, length of head 

 3 to 3 1 times. Head 1| to 1|^ times as long as broad, upper surface 

 more or less coarsely granulate in the adult ; occipital process 

 angular ; frontal fontanelle sole -shaped, 3 to 5 times as long as 

 broad, 4 to 4| times in length of head ; occipital fontanelle very 

 small, in advance of occipital pi-ocess ; eye small, 3 to 4 times in 

 length of snout, 5| to 7 times in interorbital width in the adult ; 

 width of mouth nearly equal to interorbital width, i length of 

 head ; band of prsemaxillary teeth 6 to 8 times as long as broad ; 

 vomerine teeth mostly granular, forming a crescentic band, which 

 is as broad as or a little narrower than the praemaxillary band ; 

 nasal barbel -^ to ^ length of head ; maxiUary barbel | to once 

 length of head (a little longer in the young), reaching about 

 middle or end of pectoral spine ; outer mandibular barbel \^ to 

 1^ times as long as inner, which measures 4 to | length of head, 

 Oill-rakers on first arch fine and closely set, 30 to 40 in number. 

 Clavicles striated and covered with thin skin. Dorsal 65-80, its 

 distance from the occipital process y to | length of head, its dis- 

 tance from caudal not or but little greater than diameter of eye. 

 Anal 46-58, narrowly separated from caudal. Pectoral nearly 

 5 length of head, the spine serrated on the outer border, ^ the 

 length of the fin. Yentrals midway between end of snout and 

 caudal or a little nearer the former. Caudal about ^ length of 

 head. Olive or dark brown above, with or without darker spots 

 or marblings, white beneath ; anal with a light edge. 



Total length 850 millim. 



Senegal, Gambia, Niger. Type (in Paris Mus.), stufied, 

 examined. 



5. Clarias mossambicus. 



Clarias mossambicus, 'paxt., Peters, Mon. Berl. Ac. 1852, p. 682, 

 and Reise Mossamb. iv. p. 32, pi. vi. fig. 3 (1868). 



Clarias gariepinus, part., Giinther & Playfair, Fish. Zanzib. 

 p. 113 (1866). 



Clarias mossambicus Fischer, Jahrb. Hamb. Wiss. Anst. i. 1884, 

 p. 28 ; Vinciguerra, Ann. Mus. Genova (2) xv. 1895, p. 31, fig. 1, 

 and xvii. 1896, p. 25 ; Pfeffer, Thierw. O.-Afr., Fische, p. 27, fig. 

 (1896) ; Pellegrin, Mem. Soc. Zool. France, xvii. 1905, p. 176. 



Clarias robecchii Yinciguerra, Ann. Mus. Genova (2) xiii. 1893, 

 p. 450, and xv. 1895, p, 30, fig. ; Boulenger, Poiss. Bass. Congo, 

 p. 253 (1901), and Fish. Nile, p. 285, pi. li. fig. 1 (1907). 



Clarias lazera (non Cuvier & Valenciennes) Giuither, Proc. Zool. 

 Soc. 1894, p. 89 ; Boulenger, Proc. Zool. Soc. 1901, ii. p. 161. 



Clarias smithii Giinther, Proc. Zool. Soc. 1896, p. 219, fig. 



Clarias microphthalmus Pfefier, op. c. p. 28 ; Hilgendorf, Zool, 

 Jahrb., Syst. xxii. 1905, p. 410. 



Clat'ias giinther i Pfefier, 1. c. 



