TETEODON. 



145 



2. TETRODON MBU. 

 Bouleug. Ann. Mus. Congo, Zool. i. p. 56, pi. xxix. (1899), Poiss. Bass. Congo, 

 p. 503 (1901), and Ann. Mus. Congo, Zool. ii. pi. xv. fig. 5 (1902). 



Head as long as broad or a little longer than broad, its length 3 to 

 3^ times in total length. Snout rounded, f or | length of head ; inter- 

 orbital region feebly convex, 1| to 2 times in length of head ; eye 

 lateral, 4 (young) to 9 times in length of head ; no nostril, but two 

 nasal tentacles on each side, measuring f to f diameter of eye. Dorsal 

 rounded, 11-12. Anal rounded, 10-11, opposite dorsal. Pectoral 

 rounded-subtruncate, f to ^ length of head. Caudal rounded, as long as 

 or longer than head. Caudal peduncle ^ to f length of head, about 

 twice as long as deep. Head and body with minute spines, except 

 on snout and on sides and lower surface of caudal region ; lateral-line 



Fig. 98. 



Tetrodon mhu. 

 Type (A. M. C). 



system represented by very distinct furrows. Brownish above, with large 

 black spots or marblings (young), or with black vermicular lines forming 

 a handsome pattern ; young with one or two black longitudinal bands 

 on each side of the caudal peduncle ; lower parts uniform yellow or 

 orange ; fins unspotted, or caudal with black longitudinal streaks. 



Total length 670 millim. 



Congo. — Types in Congo Museum, Tervucren. 



1, 2. Types. 



3. Yg., type. 



4. Ad. 

 5-G. Hgr. 



7. Skel. 



8-9. Hgr.&y. 



VOL IV. 



Umangi, Upper Congo. 

 Monscnibe, ,, 



Stanley Falls, Upper Congo. 

 Upper Congo. 



Sankurii R. at Kondue, Kasai. 



Capt. Wilverth (C). 

 IJev. J.H. Weeks (P.). 

 Dr. C. Christy (C). 

 Biussols University. 

 Kev. Ct. Grenfell (P.). 

 M. E. Luja (C.) ; Luxem- 

 burg Museum (P.). 

 L 



