1898.] OP THE FAMILT M011MTRID.E. 817 



duced, about as long as the postocular part of the head, its 

 length 2| times its least depth ; mouth very small, lower jaw 

 slightly projecting ; eye small. Dorsal 83, originating in advance 

 of base of ventral, 6 times as long as anal, 1| as long as its 

 distance from end of snout. Anal IS, oi-iginatiug at equal 

 distance from tlie base of the i)ectoral and tliat of the caudal. 

 Pectoral rounded, i length of head. Caudal with obtusely pointed 

 lobes. Caudal peduncle twice as long as deep, g length of head. 

 About 100 scales in the lateral line, about 20 round caudal 

 peduncle. Greyish olive. 

 Senegal. — Paris Museum. 



10. MORilTBUS LONGIROSTEIS. 



Mormyrus longirostris, Peters, Mon. Berl. Ac. 1852, p. 275 ; 

 Giinth. Cat. vi. p. 216 (1866); Peters, Eeise n. Mossamb. iv. 

 p. 83, pi. xvi. fig. 2 (1868). 



Mormyrus mucupe, Peters, 11. cc. pp. 275, 87, pi. xvi. fig. 1 ; 

 Giinth. 1. c. p. 215. 



Mormyrus geoffroyi, Giinth. 1. c. p. 216. 



Mormyrus oxyrhynchus (non Geoffr.), Schilth. Tijdschr. Nederl. 

 Dierk. Ver. (2) iii. 1891, p. 84. 



Depth of body 3| to 5 times in total length, length of head 

 4 to 4g. Head Ij to If as long as deep, with curved or nearly 

 straight descending upper profile ; snout produced, as long as or 

 a little shorter than the postocular part of the head, its length 

 2 to 3| times its least depth ; mouth very small, lower jaw 

 slightly projecting ; teeth small, notched, 5 or 7 in the upper 

 jaw, 8 or 10 in the lower ; eye moderate, its diameter about twice 

 in interorbital width. Dorsal 71-78, originating in advance of 

 ventral, 5 to 5h times as long as anal, 1^ to 1| as long as its 

 distance from the end of the snout. Anal 18-20, originating at 

 nearly equal distance from the base of the pectoi-al and that of the 

 caudal. Pectoral pointed, f to | length of head, ventral f to |. 

 Caudal with pointed lobes, densely scaled. Caudal peduncle twice 

 as long as deep, about g length of head. 95-108 scales in the 

 lateral line, |g in a transverse series on the body, 40-50 in a 

 transverse series between dorsal and anal, 20-26 round caudal 

 peduncle. Olive above, whitish below. 



Total length 190 millim. 



Nile, Zambesi, Congo. 



11. MOBMTEUS KAIfNUME, 



Mormyrus Jcannume, Porsk. Descr. Anira. p. 74 (1775) ; Mar- 

 cusen, Mem. Ac. St. Petersb. (7) vii. 1864_, no. 4, p. 114. 



Mormyrus oxyrhynchus, Geoffr. Descr. Egypte, Poiss. i. p. 270, 

 pi. vi. fig. 1 (1829) ; Joannis, Mag. Zool. 1835, iii. pi. xiii. ; Cuv. 

 & Val. xix. p. 242 (1846) ; Giinth. Cat. vi. p. 216 (1866) ; Hilgend. 

 Sitzb. Ges. nat. Fr. Berl. 1888, p. 78. 



Mormyrus bachiqua, Cuv. & Val. 1. c. p. 248. 



