Subspecies and Distribution. C.c.calvus1.GeoffroySaint-Hilaire,1847—BrazilianAmazon,mainlyrestrictedtothelargefluvialislandborderedbytheriosJapura,Auati-Parana,andSolimoes. C.c.novaesiHershkovitz,1987—BrazilianAmazon,restrictedtotheupperRioJurua(Sbank),betweentheriosEiruandTarauacainthestateofAmazonas.C.c¢.rubicundus1.GeoffroySaint-Hilaire&Deville,1848—WAmazonBasininBrazil(disjunctdistribution,withonepopulationintheJapura-Solimoesinterfluvium,WoftheAuati-Parana,andanotheralongtheRioSolimoes,upriverfromtheRioI¢a-Putumayo);possiblyextendingintotheColombianTrapeziumbutneverrecordedthere. C. c. ucayalu Thomas, 1928 — W Amazon Basin in E Peru (S of the Rio Amazonas, between the rios Ucayali and Yavari, in the regions of Loreto and N Ucayali) and W Brazil (known from a single locality, Estirao do Ecuador, on the E bank ofthe lower RioJavari). in Phitheciidae

Subspecies and Distribution. C.c.calvus1.GeoffroySaint-Hilaire,1847—BrazilianAmazon,mainlyrestrictedtothelargefluvialislandborderedbytheriosJapura,Auati-Parana,andSolimoes. C.c.novaesiHershkovitz,1987—BrazilianAmazon,restrictedtotheupperRioJurua(Sbank),betweentheriosEiruandTarauacainthestateofAmazonas.C.c¢.rubicundus1.GeoffroySaint-Hilaire&Deville,1848—WAmazonBasininBrazil(disjunctdistribution,withonepopulationintheJapura-Solimoesinterfluvium,WoftheAuati-Parana,andanotheralongtheRioSolimoes,upriverfromtheRioI¢a-Putumayo);possiblyextendingintotheColombianTrapeziumbutneverrecordedthere. C. c. ucayalu Thomas, 1928 — W Amazon Basin in E Peru (S of the Rio Amazonas, between the rios Ucayali and Yavari, in the regions of Loreto and N Ucayali) and W Brazil (known from a single locality, Estirao do Ecuador, on the E bank ofthe lower RioJavari).