128 



MASTACEMBELIDvE. 



Dorsal XXV- XXVII 70-80; spines very short; distance between 

 first spine and head £ length of latter. Anal II 70-80. Caudal 

 rounded. Pectoral \ length of head. Scales extremely small, 30-35 

 between origin of soft dorsal and lateral line. Brown, tail with 

 a wide-meshed blackish network ; dorsal and anal fins whitish. 

 with a series of blackish spots or vertical bars ; anal and caudal 

 edged with blackish. 



Total length 440 millim. 



Lake Tanganyika. 

 1-2. Types. Mbity Bocks. Prof. J. E. S. Moore (C). 



3 _7. Y"-. Utinta. Dr. W. A. Cunnington (O.j. 



Fig. 81. 



-.___:_.._ — z^£i|W.i 



Mastacembelus moorii. 

 Type (Tr. Z. S. 1S9S). |. 



17. MASTACEMBELUS SHIRAN US. 



Glinth. Ann. & Mag. N. H. (6) xvii. 1896, p. 397 ; Bouleng. Tr. Zool. Soc. xv. 

 1898, p. 23. 



Depth of body 12 to 14 times in total length, length of head 7 to 8 

 times. Vent equally distant from end of snout and from caudal, its 

 distance from head 2§ to 3 times length of latter. Snout 3 times as 

 long as eye, ending in an appendage which is as long as or slightly 

 longer than eye ; mouth extending to below anterior border of eye ; 

 no prseorbital or praeopercular spines. Dorsal XXVI-XXIX 65-70 ; 

 spines short, last about lij diameters of eye; distance between first 

 spine and head \ length of latter. Anal II 60-65 ; first spine very 

 short, often indistinct. Caudal rounded. Scales very small, J 8-22 

 between origin of soft dorsal and lateral line. Greyish or brownish, 

 spotted or handsomely marbled with dark brown; dark brown streak 



