438 On new Abyssinian Fislies. 



A single specimen from Baliardar, Lake Tsana, June 4, 

 1902. 



This is tlie first known African representative of the Cobi- 

 tidince. It belongs to a genus of wide distribution in Euro])e 

 and Asia, and its nearest ally appears to be X Leontime, 

 Loi-tet, from the Lake of Galilee. 



Clarias fsanensis. 



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

 3^ to 3i times. Head 1^ to 1§ as long as broad, perfectly 

 smooth above ; vertex very strongly flattened, almost concave 

 in the adult ; occipital process angular ; frontal fontanelle 

 knife-shaped, 3 to 4 times as long as broad, 4 to 5 times in 

 length of head ; occipital fontanelle indistinct; eye small, 2^ 

 (young) to 4 times in length of snout, 4 (young) to 6 times 

 in interoibital width ; width of mouth equal to interorbital 

 width, ^ length of head. Band of piremaxillary teeth 4 to 

 5-^ times as long as broad ; vomerine teeth granular, forming 

 a cresccntic band, wliich is as broad as the pramaxillary 

 band. Kasal barbel I to ^ length of head (| in the very 

 young) ; maxillary barbel | to 1 length of head (longer in 

 the vtry young) , reaching base or extremity of pectoral spine ; 

 cuter mandibular barbels ^ to | length of head (as long as 

 lit ad in the very young). Gill-rakers fine and closely set, 

 CO to 70 on first arch (45 in young). Dorsal 78-85, its 

 distance from the occipital process -i to ^ length of head, its 

 distance from the caudal hardly equal to the diameter of the 

 eye. Anal 60-70, touching root of caudal. Pectoral not 

 quite ^ length of head, the spine very slightly serrated on the 

 outer border, -| (joung) to § the length of the tin. Ventral 

 equally distant fiom end of snout and from caudal, or a little 

 nearer the former. Caudal nearly ^ length of head. Dark 

 olive-brown above, greyish beneath. 



Five specimens, measuring 125 to 430 millim., from Zegi, 

 Lake 'J'sana, May 12 and 22, 1902. 



The smooth head, combined with the high number of gill- 

 rakers and of dorsal rays, and the absence of a space between 

 the anal and caudal fins, distinguish this species from its 

 allies with granular vomerine teeth. 



Clarias Vinciguerrce. 



Depth of body 7 times in total length, length of head 3 

 times. Head If as long as broad, its upper surface strongly 

 granulated; occipital process angular; frontal fontanelle 

 knife-shaped, 3^ times as long as broad, 4^ times in lengtli of 



