ANNOTATED LIST OF THE SPECIES 289 
Fowler, 1906 (1907), Proe. Acad. Nat. Sei Phila., LVIII, 325: 
Higenmann, 1910, Rept. Princeton Univ. Exped. Patagonia, IIT, 427. 
Peruvian Amazon 
Highth Division—A nostomatine Group of Subfamilies 
Subfamily: CURIMATINAE 
Genus 157: POTAMORHINA Cope 
Potamorhina Cope, 1878, Proc. Amer. Phil. Soe., XVII, 685, Maranon; 
Eigenmann and Eigenmann, 1889, Ann. N. Y. Acad. Sci., IV, 411; 
Eigenmann, 1910, Rept. Princeton Univ. Exped. Patagonia, III, 420. 
Type: Curimatus pristigaster Steindachner 
Amazons from the Andes to Rio Negro 
A Curimatus with clupeoid form of belly, breast strongly flattened, predorsal 
area without scales, scales small. 
381. POTAMORHINA PRISTIGASTER (Steindachner) 
Curimmatus pristigaster Steindachner, 1876, Sitzb. KK. Akad. Wiss. Wien, LX-XIV, 25, pl. vi. 
Potamorhina pristigaster Cope, 1878, Proc. Amer. Phil. Soc., XVII, 685, Rio Maranon, Orton 
collection; 
Eigenmann and Eigenmann, 1889, Ann. N. Y. Acad. Sci., IV, 411; 
Fowler, 1906 (1907), Proc. Acad. Nat. Sci. Phila., LVIII, 306; 
Eigenmann, 1910, Rept. Princeton Univ. Exped. Patagonia, III, 420. 
Rios Negro, Solimdes, Maranon 
15665, 1, 195 mm., Iquitos, Allen, September, 1920. 
Genus 158: PSECTROGASTER Eigenmann and EKigenmann 
Psectrogaster Eigenmann and Eigenmann, 1889, West. Amer. Sci., VI, 7; 
Eigenmann and Eigenmann, 1889, Ann. N. Y. Acad. Sci., IV, 412; 
Eigenmann and Eigenmann, 1891, Proc. U.S. Nat. Mus., XIV, 46; 
Eigenmann, 1910, Rept. Princeton Univ. Exped. Patagonia, III, 420. 
Type: Psectrogaster rhomboides Eigenmann and EKigenmann 
Rio Paraguay northward 
Edentulous; postventral area trenchant, the scales of each side with a flange 
enclosing the ventral line, and terminating in a median spinous process; preventral 
area rounded; predorsal scaled; scales large, 50-60 on the lateral line. 
382. PSECTROGASTER AMAZONICUS Eigenmann and Eigenmann 
Psectrogaster amazonica Bigenmann and HKigenmann, 1889, Ann. N. Y. Acad. Sei., TV, 413; 
Eigenmann and Eigenmann, 1891, Proc. U. 8. Nat. Mus., XIV, 46. 
Psectrogaster amazonicus Eigenmann, 1910, Rept. Princeton Univ. Exped. Patagonia, III, 420. 
Psectrogaster ciliatus Fowler, 1906 (1907), Proce. Acad. Nat. Sei. Phila., LVIII, 305. 
