CITIIARINUS. s. 201 



Synopsis of the Species. 



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

 Anal 25-31. 



Sc. 77-90^0^, 17-21 between lateral line and 



ventral ; dorsal ori<;inating behind vertical of 



base of ventral ; snout projecting a little be- 

 yond lower jaw 1. C. citliants, Geoffr., p. 291. 



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



ventral ; dorsal originating above last ray of 



ventral ; snout projecting a little beyond 



lower jaw 2. C. conr/irus, Blgr., p. 293. 



Sc. 55-60 i5^, 10-12 between lateral line and 



root of ventral; dorsal originating above last 



ray of ventral ; snout not projecting beyond 



lower jaw 3. C. /7iaf?-o/^y)/^-, Blgr., p. 291. 



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

 Dorsal 20-23 ; Anal 20-27. 



Sc. 63—71 TTTioQ, 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. gibhosus, B!gr., p. 297. 



1. CITHARINUS CITHARUS. 

 Serrasalmus citharus, Geoffr. Descr. Egypte, Poiss. p. 40, pi. v. figs. 2 & 3 (1809). 

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



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



Gunth. Cat. 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. Concho, 



Zool. i. p. 93 (1899). 

 Disticliodus niarnoi, 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 1| 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 adnlt, a little shorter in young, projecting slightly beyond mouth ; 



