MASTACEMBELL'S. 



139 



a space equal to 3^ to 4i times its loiigtli. Snout 2 to 2^ times as long 

 as eye, ending in an appendage shorter than latter ;. mouth extending 

 to below posterior nostril or anterior border of eye : no jmrorbital spine ; 

 a small pneopercular spine. Dorsal XXXVI-XXXIX 50-60 ; distance 

 between first spine and head f to i length of latter. Anal TI oO-GO ; 



Fig. 93. 



"" iJ^w* V'jsi^' ■ 



Miislacenibeliis tiniijanicw. 

 Type. 3. 



first spine extremely small. Caudal roundcMl. Pectoral \ length of 

 head. Scales extremely small, about 20 between origin of soft dorsal 

 and lateral line. Brownish (discoloured), with traces of dark vertical 

 bars on tlie caudal region. 



Total length 170 millim. 



Lake Tanganyika, 

 l-l). Types. Ni'iir I jiji. 



E. Cooae Horc, Esq. (P.). 



Fig. 94. 



Alaslacembelus lunyiMuda. 

 Type. S. 



?d. MASTAOEMBELUS LONGK'AUDA. 

 Poulcng. Ann. & M:ig. N. II. (7) xx. U)07, p. 487, 



De])th of body 1(5 to 24 times in total length, length of head 01 to 

 11 times. Vent niucli nearer end of snout tiian caudal, its distance 



