32 MORMYRID.E. 



II. Caudal peduncle not or but little longer than deep, ^ to ^ length of head. 



A. 16-28 teeth in each jaw ; D. 24-32 ; head not twice as long aa deep. 

 D. 24-25 ; A. 40-43 ; L. 1. 62-67 ; 16 scales 



round caudal peduncle ; depth of body 



4-4£ times in total length 11. M. curtus, Blgr., p. 41. 



D. 29-32 ; A. 46-50 ; L. 1. 80-90 ; 16-18 scales 



round caudal peduncle ; depth of body 5-6 



times in total length 12. M. lineolatas, Bigr., p. 42. 



D. 24-25 ; A. 38-41 ; L. 1. 54-58 ; 12 scales 



round caudal peduncle ; depth of body 



5-5£ times in total length 13. M. nigricans, Blgr., p. 43. 



B. 12-20 teeth in each jaw ; D. 33-45 ; head nearly twice as long as de^p. 



1. Teeth truncate. 



D. 45 ; A. 70 ; L. 1. 102 ; 14 scales round 



caudal peduncle ; depth of body G^ times 



in total length 14. M. microstoma, Blgr., p. 44. 



D. 34-39 ; A. 47-59 ; L. 1. 100-106 ; 22-24 



scales round caudal peduncle ; depth of 



body 5|-7 times in total length . . . .15. M. marice, Schilth., p. 44. 

 D. 41-43 ; A. 63-64 ; L. 1. 90-95 ; 16 scales 



round caudal peduncle ; depth of body 



8-85 times in total length 16. M. attenuatus, Blgr., p. 45. 



2. Teeth bicuspid, deeply forked. 



D. 33-35 ; A. 55-61 ; L. 1. 90-95 ; 14 scales 

 round caudal peduncle ; depth of body 7£ 

 times in total length 17. M. fuvcidens, Pellegr., p. 46. 



1. MORMYROPS DELICIOSUS. 



Oxyrhynchus deliciosus, Leach, in Tuckey, Exped. R. Zaire, p. 410 (1818). 



Mormyrus tuckeyi, Cuv. & Val. Hist. Poiss. xix. p. 263 (1846). 



Mormyrus zambanenje, Peters, Mon. Berl. Ac. 1852, p. 275 ; Giinth. Proc. Zool. 



Soc. 1896, p. 224. 

 Mormyrops tuckeyi, Marcusen, Bull. Ac. St. Petersb. xii. 1854, p. 14. 

 Mormyrops deliciosus, Giinth. Cat. Fish. vi. p. 224 (1866) ; Steind. Sitzb. Ak. Wien, 



lxi. i. 1870, p. 555, pi. v. fig. 1 ; Perugia, Ann. Mus. Genova, (2) x. 1892, 



p. 976; Steind. Notes Leyd. Mus. xvi. 1894, p. 65 ; Bouleng. Proc. Zool. Soc. 



1898, p. 782, and Poiss. Bass. Congo, p. 58 (1901) ; Pappenh. Mitth. Zool. 



Mus. Berl. iii. 1907, p. 341. 

 Mormyrops zambanenje, Giinth. 1. c. 

 Mormyrus (Mormyrops) zambanenje, Peters, Reise Mossamb. iv. p. 88, pi. xv. fig. 2 



(1868). 

 Mormyrus (Mormyrops) swanenburyi, Schilthuis, Tijds. Nederl. Dierk. Ver. (2) iii. 



1891, p. 91. 



