ANNOTATED LIST OF THE SPECIES 303 
Pithecocharax Fowler, 1906 (1907), Proce. Acad. Nat. Sci. Phila., LVIII, 319; 
Eigenmann, 1910, Rept. Princeton Univ. Exped. Patagonia, IIT, 425. 
Type: Salmo anostomus Linnaeus 
Amazon basin northward 
Small to medium-sized fishes; snout elliptical to nearly circular in cross-section ; 
mouth minute, vertical; lips thick and plicate; about eight teeth above and below, 
respectively, bilobed to multilobed; gill-membrane united with the isthmus. 
409. ANOSTOMUS TRIMACULATUS (Kner) 
Schizodon trimaculatus Kner, 1859, Denksch. KK. Akad. Wiss. Wien, X VII, 25, pl. vi, fig. 12; 
Cope, 1878, Proc. Amer. Phil. Soc., XVIT, 690, Maranon, Orton coll. 
Anostomus trimaculatus Giinther, 1864, Cat. Fish. Brit. Mus., V, 304; 
Eigenmann and Kigenmann, 1891, Proce. U.S. Nat. Mus., XIV, 50; 
Pellegrin, 1899, Bull. Mus. Hist. Nat., V, 406; 
Figenmann, 1910, Rept. Princeton Univ. Exped. Patagonia, IIT, 425; 
Figenmann, 1912, Mem. Carnegie Mus., V, 295, pl. xh, fig. 2. 
Amazon basin and British Guiana 
410. ANOSTOMUS UCAYALENSIS (Fowler) 
Pithecocharax ucayalensis Fowler, 1906 (1907), Proc. Acad. Nat. Sci. Phila., LVITT, 320; 
Eigenmann, 1910, Rept. Princeton Univ. Exped. Patagonia, III, 425. 
Peruvian Amazon or Ucayali 
Genus 166: SCHIZODON Agassiz 
Anostomus (in part) Gronow, 1754, Mus. Ichth., IT, 13. 
Schizodon Agassiz, 1829, Sel. Gen. et Spec. Pisce. Bras., 66, pl. xxxvi; 
Zigenmann, 1910, Rept. Princeton Univ. Exped. Patagonia, II, 425; 
Migenmann, 1912, Mem. Carnegie Mus., V, 297. 
Type: Curimatus fasciatus Spix 
The Guianas to La Plata basin 
Anostomus-like, but with cross-section of snout region more decidedly el- 
liptical; mouth terminal; mandibular teeth short and broad. 
411. ScHIZODON FASCIATUM (Spix) 
Curimatus fasciatus Spix, 1829, Sel. Gen. et Spec. Pisc. Bras., pl. xxxvi. 
Schizodon fasciatus Agassiz, 1829, Sel. Gen. et Spec. Pisc. Bras., 66; 
Cope, 1870, Proc. Amer. Phil. Soc., XI, 566, Para; 
Cope, 1878, Proce. Amer. Phil. Soe., XVII, 689, Maranon, Orton coll.; 
Fowler, 1906 (1907), Proc. Acad. Nat. Sci. Phila., LVIII, 322, Ambyiacu river, Hauxwell 
collection; 
Eigenmann, 1910, Rept. Princeton Univ. Exped. Patagonia, IIT, 425; 
Higenmann, 1912, Mem. Carnegie Mus., V, 297; 
