14 



POLVPTKKID.K. 



Upper Conj^o (Lake Leopold IT. and New Antwerp); Shari. — Type 

 in Congo Musenin, Tervuercn. 

 1. One of tlio typos. New Antwerp. Capt. Wilverth (C). 



8. POLYPTERUS SENEGALUS. 



Cuvier, llc'one Anini. 2nd ed. p. 330 (1820), and Regne Anini. Illnstr., Pois?. 



pi. cv. fig. 2 (18.30) ; Gnichen. Mag. de Zool. 1839, Poiss. p. 11, jil. i.; 



Stein.l. Sit/.b. Ak. Wicn, lix. i. ISCO, j). Kx;, pi. i. Hg.s. W-'t : A. Diini. Hi.st. 



Poi.ss. ii. p. 3114 (1870); Stein.l. Denk^c-lir. Ak. Wien. xliv. lS,s2, j). .^2, 



pis. viii. & i.\. fig. 2 : Bouleng. Ann. k Mag. N. H. (7) ii. 1S'.»S. p. 41l«; 



Budgett, Proe. Cand.r. Pliilos. Soc. x. 1 '.•()(), p. -IWu : lionlcng. Pioc Zool. 



Soo. 1902, i. J). 124, pi. xi. tig. 3 : Werner, Zool. dahri).. Syst. xxi. ]'J04, 



p. 271, and Sitzl). Ak. Wieii, rxv. i. I.Kh;. p. 111'.'. |.l. i. tig. 1; P>oul.-ng. 



Fi.sh. Nile, p. 11, pi. iii. (1907). 

 I'olypterus senegalensis, jiart., Giintli. Pctlp rick's Trav. ii. p. 2G8 (18ti9). 

 Poli/pterus arnaiidi't, A. Diini. t. e. i>l. xxiii. lig. 2. 

 rohjpteriis hichir, part., Giintli. Gat. Fish, viii. ]>. 32ri (i-'^TU). 

 /'oli/jdfiriis senef/ulensis, Stein 1. Sitzh. Ak. Wien, Ixi. i. 1870, j). 7 IS. 

 J'olypterus hichir (non GeoflFr.), Giintli. Proc. Zool. Soc. 1890, p. 218. 



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

 as broad, 5f 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, H (young) to 2^ times in inter- 



Fiir. 10. 



-'^^. 



-V 



^ 



— ,.,*--k?WdiM::«'MK'«<»^fc^-^ r_^-^^- 





i "'■i2>t(fus sc»e<jaJiis. 

 From Kliartuin (F. X.). }^. 



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

 shields between postorbital and spiracular shields ; suboperculum as 

 large as or smaller than eye. Dorsal with ^*I^T-XI spines, more or less 

 widely separated from each other when foldi-d. Anal 11 17. Pectoral 



