ICHTHYOLOGY OF VENEZUELA — SCHULTZ 79 



Symhranchus marmoraius Peters, Monatsb. Akad. Wiss. Berlin, 1877, p. 473 

 (Calabozo, Venezuela). — Eigenmann, Indiana Univ. Studies, vol. 7, No. 44, 

 p. 13, 1920 (Isla del Euro; rocks on shores of Lake Valencia and mud at depth 

 of 15 meters; Rfo Guaire, near Caracas, and at Caracas; Maracay; all in 

 Venezuela).— Pearse, Univ. Wisconsin Studies, No. 1, p. 23, 1920 (Isla del 

 Euro, Lago de Valencia, Venezuela), 



4 specimens, 82 to 104 mm., near Caripito, William Eeebe, May 6, 1942. 

 3 specimens, 88 to 108 mm., near Caripito, William Eeebe, April 11, 1942. 



Order SYNENTOGNATHOIDEA 

 Family BELONIDAE: Needlefishes; Feces agujas, o Agujones 



KEY TO THE NEEDLEFISHES REPORTED FROM VENEZUELA 



la. Postorbital length of head about equal to base of anal fin, much longer than 

 base of dorsal fin, and contained about 2.5 times in distance from insertion 

 of pectoral fins to that of pelvic fins; longest pelvic fin ray about 1.5 times 

 in longest pectoral fin ray; caudal fin not forked but deeply concave, lower 

 lobe a little longer than upper; side of body with a blackish streak; post- 

 orbital length of head about 1.9 in snout, 1.1 in anal fin base, and 0.8 in 

 dorsal fin base; dorsal origin notably behind anal origin. 



Potamorrhaphis guianensis (Schomburgk) 



16. Postorbital length of head much shorter than length of anal fin base, about 



equal to or much shorter than base of dorsal fin and contained more than 



3 times in distance from insertion of pectoral fins to that of pelvic fins. 



2a. Longest pelvic fin ray nearly equal to longest pectoral fin ray; caudal fin 



forked, lower lobe longest, pointed; dorsal origin nearly over anal origin; 



postorbital length of head contained about 2.5 in snout, 2.2 in anal fin 



base and 2.5 in that of dorsal fin; side of body without dark lengthwise 



streak Strongylura raphidoma (Ranzani) 



26. Longest pelvic fin ray about 2 or more than 2 times in longest pectoral fin 

 ray; caudal fin not forked but posterior margin concave, lobes rounded; 

 dorsal origin notably behind anal fin origin; postorbital length of head 

 contained from 2.75 to 3 in snout, 1.6 in anal fin base, and 1.4 in dorsal 

 fin base; side of body with a black streak running lengthwise. 



Strongylura timucu (Walbaum) 



Genus POTAMORRHAPHIS Giinther 



Potamorrhaphis Gunther, Catalogue of the fishes in the Eritish Museum, vol. 6, 

 p. 256, 1866. (Genotype, Belone taeniata Gunther.) 



POTAMORRHAPHIS GUIANENSIS (Schomburgk) 



Belone guianensis Schomburgk, The natural history of the fishes of [British] 

 Guiana, vol. 2, p. 131, pi. 1, 1843 (Guiana; Paduiri) (ref. copied). 

 One specimen, 225 mm., Rfo Apure at San Fernando de Apure, F. F. Bond, 



February 16, 1938. 



Genus STRONGYLURA van Hasselt 



Strongylura van Hasselt, Alg. Konst. Letter-Bode, No. 35, 1823; Bull. Sci. Nat. 

 Ferussac, vol. 2, p. 374, 1824. (Genotype, S. caudimaculata van Hasseit= 

 Belone strongylura van Hasselt, 1823.) (Ref. copied.) 



