CLAllIAS. 230 



interorbital width ; width of mouth a little less than intcrorbital width, 

 f lenglh of head. Band of prse maxillary teeth 5 J times as long as 

 broad ; vomerine teeth granular, forming a crescentic band which is as 

 broad as the |)r8emaxillaryband. Nasal barbel nearly f length of head ; 

 maxillary barbel slightly shorter than head, reaching base of pectoral 

 fin ; outer mandibular barbel f length of head, inner f . Gill-rakers 

 fine and closely set, about 90 on first arch. Dorsal 67, its distance from 

 the occipital process ^ length of head, its distance from the caudal 

 2 diameters of eye. Anal 53, narrowly separated from caudal. Pectoral 

 not quite i length of head, the spine finely serrated on the outer 

 border, f the length of the tin. Ventrals a little nearer end of snout 

 than caudal. Latter nearly J length of head. Dark brown above, 

 whitish beneath ; anal and caudal with a fine light edge. 



Total length 410 millim. 



Kassam River (Hawash System), Southern Ethiopia. 

 1. Type. Kassam R. at Awhorra Mullka, Shoa, 4000 ft. Mr. E. Degen (C). 



7. CLARIAS LAZERA. 



Silurus anguillaris (non Linn.), A. Russell, Nat. Hist. Aleppo, 2nd ed. ii. p. 217, 



pi. viii. (1794). 

 Macropteronotus charimith, part., Lacep. Hist. Poiss. v. p. Hb (1803). 

 Heterohranchus anguillaris (non Linn.), I. Geoff r. Descr. Egypte, Poiss. p. 305, 



pi. xvi. fig. 1 (1827) ; Joannis, Mag. Zool. 1835, pi. xiv. 

 Garniout Lasera, Rifaud, Voy. Egypte, pi. cxcv. (1830). 

 Clarias lazera, Cuv. & Val. Hist. Poiss. xv. p. 372 (1840) ; Giinth. Cat. Fish. v. 



p. 16 (1864) ; Peters, Reise Mossamb. iv. p. 36 (1868) ; Giinth. Petherick's 



Trav. ii. p. 218 (1869) ; Bouleng. Poiss. Bass. Congo, p. 252 (1901) ; 



Hilgend. Zool. Jahrb., Syst. xxii. 1905, p. 409 ; Bouleng. Fish. Nile, p. 288, 



pi. lii. (1907), and Proc. Zool. Soc. 1907, p. 1073. 

 Clarias sytiacvs, Cuv. & Val. t. c. p. 375. 

 Clarias capensis (non Cuv. & Val.), Huxley, Mem. Geol. Surv. x. pp. 30 & 32, fig. 



(1861). 

 ? Clarias ngamensis, Castoln. Poit^s. At'r. Austr. p. 63 (1861). 

 Clarias orontis, Giinth. (Jat. Fish. v. p. 15 ; Sauv. N. Arch. Mus. (2) vii. 1884, 



p. 18, pi. 1. fig. 2. 

 Clarias macracanthvs, Giinth. t. c. pp. 16 & 429, and Petherick's Trav. ii. 



p. 219; Lortet, Arch. Mus. Lyon, iii. 1883, p. 151, pi. xvii. ; Tristram, 



Faun. Palest, p. 169, pi. xix. fig. 1 (1884). 

 Clarias xenodoii, Giinth. Cat Fish. v. p. 16. 

 Clarias longiceps, Bouleng. Ann. Mus. Congo, Zool. i. 1899, p. 103, pi. xli. fig. 1, 



and Poiss. Bass. Congo, p. 256 (1901). 



