418 



SILURID/E. 



14. SYNODONTIS MELANOSTICTUS. 

 Bouleng. Trans. Zool. Soe. xvii. VM)G, p. '553, pi. xxxiv. 



Depth of body 4 times in total length, length of head Sf to 4 times. 

 Head as long as broad or slightly longer than broad, strongly rugose 

 above ; snout rounded or obtusely pointed, as long as or slightly longer 

 than postocular part of head ; eye supero-lateral, 6 to 6^ times in length 

 of head, 2 J to 2^ times in interorbital width ; lips moderately developed ; 

 pracm axillary teeth forming a short and broad band ; movable man- 

 dibular teeth not quite ^ diameter of eye, 30 to 40 in number. 

 Maxillary barbel with a narrow marginal membrane at base, Ij to 1^ 

 times length of head, reaching anterior third on middle of pectoral 

 spine ; outer mandibular barbel 2^ to 3 times as long as inner, both 

 with long slender branches without ramifications. Gill-opening not 

 extending downwards beyond root of pectoral spine. Occipito-nuchal 

 shield rough like the occiput, obtusely tectiform, li to 1^ times as long 



Fig. 314. 



^'^t^. 



Si/nodonii.<i melanostictns. 

 Type (Tr. Z. S. 1906). ^ 



as broad, with rounded or truncate posterior processes. Humeral 

 process much longer than broad, not distinctly keeled, sharply pointed, 



