SYNODONTIS. 



DO 



granulate, without keel, extending as far back as occipito-nuchal process. 

 Dorsal I 7 ; spine as long as head, slightly curved, striated, smooth in 

 front (except towards the end), serrated behind. Adipose dorsal 4c to 4^ 

 times as long as deep, 1^ times as long as its distance from rayed dorsal. 

 Anal IV 8, rounded. Pectoral spine shorter than dorsal, not reaching 



Fur. 325. 



Sifnodontls macrostigma. 

 Type. 3. 



ventral, rather strongly serrated on outer border, very strongly on inner. 

 Caudal deeply forked. Caudal peduncle as long as deep. Brown above, 

 lighter beneath ; back and sides with large round or oval blackish spots ; 

 head and fins with smaller spots. 



Total length 160 millim. 



Lake N garni district, Bechuanaland. 

 1-2. Types. Okoviinoo \\. R. B. Woosnam, Esq. (C). 



27. SYNODONTIS OBESUS. 



Sijnodontis serratus (non Riipp.), Giinth. Ann. & Mag. N. H. (6) xvii. 1896, 



p. 277. 

 Si/noilontis ohesiis, Bouleng. op. cit. (7) ii. 1898, p. 115. 

 Synodontis rohbianus (non Smith), Giinth. Proc. Zool. Soc. 1902, ii. p. .337. 

 VOL. II. 2 F 



