ANNOTATED LIST OF THE SPECIES 319 
Giinther, 1870, Cat. Fish. Brit. Mus., VIII, 4; 
Boulenger, 1898, Trans. Zool. Soc. London, XIV, 427, Jurua. 
Sternarchorhynchus oxyrhynchus FKigenmann and Kigenmann, 1891, Proc. U.S. Nat. Mus., XIV, 62; 
Eigenmann and Ward, 1905, Proce. Wash. Acad. Sei., VIL, 167; 
Eigenmann, 1910, Rept. Princeton Univ. Exped. Patagonia, III, 449; 
Eigenmann, 1912, Mem. Carnegie Mus., V, 437; 
Ellis, 1913, Mem. Carnegie Mus., VI, 140. 
Sternarchorhynchus miillert Castelnau, 1855, Anim. Amér. Sud, Poiss, 95. 
Sternarchus mormyrus Steindachner, 1868, Sitzb. KIX. Akad. Wiss. Wien, 5, pl. i, fig. 3; 
Ginther, 1870, Cat. Fish. Brit. Mus., VIII, 4, Peruvian Amazon; 
Eigenmann and Eigenmann, 1891, Proc. U.S. Nat. Mus., XIV, 62. 
Sternarchorhynchus mormyrus Eigenmann and Ward, 1905, Proc. Wash. Acad. Sci., VII, 167, 
Peruvian Amazon; 
Eigenmann, 1910, Rept. Princeton Univ. Exped. Patagonia, IIT, 449. 
Sternarchus (Rhamphosternarchus) curvirostris Boulenger, 1887, Proc. Zool. Soe. London, 282, pl. 
xxiv, two specimens, Canelos. 
Sternarchorhynchus curvirostris Eigenmann and Eigenmann, 1891, Proc. U.S. Nat. Mus., XIV, 62; 
Eigenmann and Ward, 1905, Proc. Wash. Acad. Sei., VII, 167; 
Eigenmann, 1910, Rept. Princeton Univ. Exped. Patagonia, III, 449. 
Guianas and Upper Amazon 
15991, 1, about 310 mm., Iquitos, Morris, 1922. 
Genus 177: STERNARCHORHAMPHUS Eigenmann and Ward 
Sternarchorhamphus Eigenmann and Ward, 1905, Proc. Wash. Acad. Sci., VII, 165; 
Eigenmann, 1910, Rept. Princeton Univ. Exped. Patagonia, III, 449; 
Ellis, 1913, Mem. Carnegie Mus., VI, 142. 
Type: Sternarchus miilleri Stemndachner 
Peruvian Amazons to Para 
Fontanels present; caudal fin; snout produced, straight; mouth large; body 
very elongate and compressed; maximum depth at or just behind the pectoral fins; 
head medium to moderately large, pointed, produced; gape rather straight; small 
conical teeth above and below; eyes small and covered; scales cycloid; lateral line 
straight and complete; anal long, widest forward, tapering caudally; caudal fin 
very small. 
443. STERNARCHORHAMPHUS MACROSTOMUS (QGiinther) 
Sternarchus macrostoma Giinther, 1870, Cat. Fish. Brit. Mus., VIIT, 4. 
Rhamphosternarchus macrostomus Cope, 1878, Proc. Amer. Phil. Soc., XVII, 682, Xeberos and 
Peruvian Amazon. 
Sternarchorhynchus macrostoma EFigenmann and Eigenmann, 1891, Proc. U.S. Nat. Mus., XIV, 62. 
Sternarchorhamphus macrostomus Eigenmann and Ward, 1905, Proc. Wash. Acad. Sci., VII, 166, 
Peruvian Amazon; 
EKigenmann, 1910, Rept. Princeton Univ. Exped. Patagonia, III, 449; 
Ellis, 1913, Mem. Carnegie Mus., VI, 144. 
Peruvian Amazon 
