140 MASTACEMBELIDjE. 



from head 3 to 4 times length of latter. Snout 3 to 4 times as long as 

 eye, ending in an appendage which is about 1| times as long as eye ; 

 mouth extending to below anterior border of eye ; no praeorbital 

 spine; two strong praeopercular spines. Dorsal XXV-XXVII1 125- 

 150; last spine 1^ diameters of eye; distance between first spine 

 and head \ to f length of latter. Anal II 125-150. Caudal rounded. 

 Pectoral \ length of head. Scales very small, 13-15 between origin ot 

 soft dorsal and lateral line. Brown above, yellow beneath ; a dorsal 

 series of small dark brown spots; sides with lighter spots, some of 

 which are ocellar ; end of tail with large dark brown spots. 



Total length 330 millim. 



South Cameroon and Calabar. 

 1. Type. Akok, Kribi R., S. Cameroon. CI. L. Bates, Esq. (C). 



2-5. Ad. Oban, Calabar. P. A. Talbot, Esq. (P.). 



6. Skel. „ „ „ 



Fig. 95. 



Mastacembelus greslioffi. 

 Type. f. 



33. MASTACEMBELUS GRESHOFFI. 

 Bouleug. Ann. & Mag. N. H. (7) vii. 1901, p. 81, and Poiss. Bass. Congo, p. 408 

 (1901). 



Depth of body 19 times- in total length, length of head 9 times. 

 Vent much nearer end of snout than caudal, its distance from head 



3 times length of latter. Snout 3 times as long as eye, ending in an 

 appendage which is a little longer than eye ; mouth extending to below 

 anterior border of eye ; a strong erectile spine below posterior nostril ; 



4 praeopercular spines, upper very strong. Dorsal XXXI 150 ; spines 

 increasing in length, last 1\ diameters of eye; distance between 

 first spine and head f length of latter. Anal II 150. Caudal pointed. 

 Pectoral ^ length of head. Scales very small, 15 between origin of soft 

 dorsal and lateral line. Brownish, marbled with darker. 



Total length 200 millim. 

 Congo. 



1. Type. Stanley Pool. M. A. Greslioff (C.) ; 



Utrecht University (E.). 



