418 



S1LUBIDJE. 



14. NYXODOXTIS MELANO.STICTUS. 

 Bouleng. Trans. Zool. »Soc. xvii. l'.iOu, p. 553, pi. xxxiv. 



Depth of body 4 times in total length, length of head 3f 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\ to 2\ times in interorbital width ; lips moderately developed ; 

 prae maxillary 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, 1| to 1J 

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

 spine ; outer mandibular barbel 2J 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, 1-^ to lj times as long 



Tig. 314. 



Synodontits melanostictiis. 

 Type (Tr. Z. 8. 1906). \. 



as broad, with rounded or truncate posterior processes. Humeral 

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



