14 



POLTPTERID.F.. 



Upper Congo (Lake Leopold II. and New Antwerp) ; Shari.— Type 

 in Congo Museum, Tervueren. 

 1. One of the types. New Antwerp. Capt. Wilverth (C). 



8. POLYPTERUS SENEGALUS. 

 Cuvier, Regno Anim. 2nd ed. p. .330 (1829), and Regne Anim. lUiistr., Poiss. 



pi. cv. fig. 2 (1836) ; Guichen. Mag. de Zool. 1839, Poiss. p. 11, pi. i. ; 



Steind. Sitzb. Ak. Wien, lix. i. 1869, p. 106, pi. i. figs. 3-5 ; A. Diim. Hist. 



Poiss. ii. p. 394 (1870) ; Steind. Deiik<chr. Ak. Wien, xliv. 1882, p. 52, 



pis. viii. & ix. fig. 2 ; Bouleng. Ann. & Mag. N. H. (7) ii. 1898, p. 419; 



Budgett, Proc. C'ambr. Pbilos. See. x. 1900, p. 236 ; Bouleng. Proc. Zool. 



Soc. 1902, i. p. 12-4, pi. xi. fig. 3 ; Werner, Zool. Jahrb., Syst. xxi. 1904, 



p. 271, and Sitzb. Ak. Wien, cxv. i. 1906, p. 1119, pi. i. fig. 1 ; Bouleng. 



Fish. Nile, p. 11, pi. iii. (1907). 

 Polypterus senegalensis, part., Giinth. Petherick's Trav. ii. p. 268 (1869). 

 Polypterus amaudii, A. Dum. t. c. pi. xxiii. fig. 2. 

 Polypterus hichir, part., Giinth. Cat. Fish. viii. p. 326 (1870). 

 Polypterus senegalensis. Stein 1. Sitzb. Ak. Wien, Ixi. i. 1870, p. 718. 

 Polypterus bichir (non Geoffr.), Giinth. Proc. Zool. Soc. 1896, p. 218. 



Body cylindrical or slightly compressed. Head 1| to 2 times as long 

 as broad, of to 7 times in total length, with lateral eyes and convex 

 interorbital region ; snout projecting slightly beyond lower jaw ; eye 5 

 (young) to 8 times in length of head, 1^ (young) to 2^ times in inter- 

 Fig. 10. 



,==v r^ '"^ "^^ pS •-%, 



"\ 



Polypterus sener/altis. 

 From Khartum (F. X.). 1.. 



orbital width; head-shields all paired; a series of 2 or 3 (rarely 4) 

 shields between postorbital and spiracular shields ; suboperculum as 

 large as or smaller than eye. Dorsal with VIII-XI spines, more or less 

 widely separated from each other when folded. Anal 14-17. Pectoral 



