MASTACEMBELUS. 



121 



with round yellow spots snrrouiulcd by a dark network ; alternating 

 dark and light bars may be present at the base of the anal fin. 



Total length 190 niilliin. 



Cameroon, Lower Niger, Sierra Leone, Chad Basin. — Types in Stock- 

 holm Museum. 



Bonge, Cameroon. 



1. One of the 



type.s. 

 2-:?. Ad. 

 4. A<\. 

 ru Ad. 

 C. All. 

 7. Ad. 



1(1. All. 

 11. A.I. 

 1-2. Ad. 



yiv. Y. Sjr.stc<U (C.) : 



Stockholm Museum (P.). 

 G. L. Bates, Esq. (C;.). 



Dr. \V. ,1. Ansorgc (C). 



Kribi R., S. Cameroon. 



Nyong H., „ 



O^iUta, liuwcr Nigi-r. 



Aho, ., 



Agl)eri, „ „ 



Grcgani, „ „ 



Assay, .. „ 



N. Slierho Dislri^-t, .Sierra Leone. N. W. Thomas, Esij. {V.). 



Victoria, Sierra Leone. „ 



y\o 



Mastaccnihchis <juru. 

 Type (A.M. C). i- 



9. MASTACEMBELUS GORO. 

 Bouleng. Ann. Mus. Oonoo, Zool. ii. p. .54, pi. xv. fig. 3 (li)(l2). 



Depth of body IG to 20 times in total length, lengtli of head 8 to 

 10 times. Vent nearly equally distant from eye and from caudal, its 

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

 long as eye, ending in an appendage which is li times as long as eye; 

 mouth extending to below anterior border of eye ; no praM)rbital spine ; 

 two prEeopercular spines. Dorsal XXIX-XXXII S0-8o ; spines very 

 short, last U times as long as eye; distance between first spine and 

 head nearly equal to length of latter. Anal II 80-85. Caudal rounded. 

 Pectoral al)ont f length of head. Scales very smull, 10-18 between 

 origin of soft dorsal and lateral line. Dark grey-brown above, with 

 darker marblings or vermiculations, yellowish or dirty white beneath ; 

 a series of large dark spots may be present on each side of the anterior 

 part of the back; dorsal and anal tins blackish, with or without small 

 white spots or marblings; anal edged with white; pectoral whitish, 

 with Idack spots. 



