274 



URACENTRON 



URACENTRON FLAVICEPS (Guichenot) 



IBS'! Doryphorus flaviceps Guichenot, in Castelnau, Exp. Amér. Mlrid., Rept.; 26, pi. 3> fig- 2. Type- 

 locality: Sarayacu, Peru. 

 I87I Doryphorus castor Cope, Proc. Amer. Phil. See, 11 (I87O): 556. Type-locality: Pebas, Peru. 

 1925 I Uracentron flay iceps j — Mertens, Senckenberg iana, 7: 75' 

 1968 Uracentron f lav iceps — Ether i dqe. Bull. Brit. Mus. (Nat. Hist.) Zool., I7: 55. 



Distribution: Western part of Amazonian basin in northwestern Brazil, southeastern Colombia, 

 eastern Ecuador, and eastern Peru. 



URACENTRON GUENTHERI (Soulenger) 



I854 Urocentrum quentheri Boulenger, Proc. Zool. Soc. London, 1854: 725, pi. 47, fig. 3. Type- 

 locality: Iquitos, Peru. 

 1525 Uracentron quentheri — Mertens, Senckenberg iana, ]: 75- 

 1968 Uracentron quentheri —Ether i dqe. Bull. Brit. Mus. (Nat. Hist.) Zool., I7: 53. 



Distribution: Ri'o Ucayali system in Departamento Loreto, eastern Peru, and western Amazonian basin 

 in northwestern Brazil. 



URACENTRON WERNER I Mertens 



1525 Uracentron werner i Mertens, Senckenberg ¡ ana, ]: 75' Type-locality: Upper Rio Orinoco, Venezuela 

 1968 Uracentron werner i — Ether i dqe, Bull. Brit. Mus. (Nat. Hist.) Zool., 17: 55. 



Distribution: Upper R'o Orinoco valley in Venezuela; western tributaries of Orinoco in Colombia. 



