ClTHARINtrS. 291 



Synopsis of the Species. 



I. Base of adipose fin shorter than its distance from the dorsal ; Dorsal 17-21 • 

 Anal 25-31. 



Sc. 77-90 2-0E25' 17-21 between lateral line and 



ventral ; dorsal originating behind vertical of 



base of ventral ; snout projecting a little be- 

 yond lower jaw i, c. citharus, Geoffr., p. 291. 



Sc. 60-66 jg^, 13-14 between lateral line and 



ventral ; dorsal originating above last ray of 



ventral ; snout projecting a little bej'ond 



lower jaw 2. T. co72fficus, Blgr., p. 293. 



Sc. 55-60 jgTfy, 10-12 between lateral line and 



root of ventral; dorsal originating above last 



ray of ventral ; snout not projecting beyond 



lower jaw 3. C. macrolepis, Blgv., p. 29i. 



II. Base of adipose fin at least nearly as long as its distance from tlie dorsal ; 

 Dorsal 20-23 ; Anal 20-27. 



Sc. 63-71 jgi20' 14-16 between lateral line and 

 root of ventral ; dorsal originating just be- 

 hind vertical of base of ventral ; snout pro- 

 jecting a little beyond lower jaw .... 4. C. latus, M. & T., p. 295. 



Sc. 53-59 .,. ,„ ■ 10-12 between lateral line and 

 14-16' 



root of ventral; dorsal originating above base 

 of ventral ; snout projecting rather strongly 

 beyond lower jaw 5. C. ffibbosux, Blgr., p. 297. 



1. CITHARINUS CITHARUS. 

 Serrasalmus cithaini.s, GreofEr. Descr. Egypte, Poiss. p. 40, pi. v. figs. 2 & 3 (1809). 

 Citharinus geoffroyi, Guv. Regne Anim. 2nd ed. ii. p. 313 (1829 ) ; Miill. & Trosch. 



Hor. Ichthyol. i. p. 9 (1845); Guv. & Val. Hist. Poiss. xxii. p. 95 (1849) ; 



Giinth. Gat. Fish. v. p. 302 (1864), and Petherick's Trav. ii. p. 240 (1869) ; 



Steind. Sitzb. Ak. Wien^ Ixi. i. 1870, p. 538 ; Bouleng. Ann. Mus. Congo, 



Zool. i. p. 93 (1899). 

 Distichodus marnoi, Steind. Sitzb. Ak. Wien, Ixxxiii. i. 1881, p. 200. 

 Citharinus citharus, Bouleng. Proc. Zool. Soc. 1905, i. p. 151 ; Fowler, Proc. Ac. 



Philad. 1906, p. 319 ; Bouleng. Fish. Nile, p. 153, pi. xxv. (1907). 



Depth of body If to 2|- times in total length, length of head 3 to 4 

 times. Head 2 to 2^ times as long as broad, upper profile deeply con- 

 cave ; snout short, If to 2 times as broad as long, a little longer than 

 eye in adult, a little shorter in young, projecting slightly beyond mouth ; 



U2 



