Search

SynopsisThe colour-pattern of hybrids between Ara chloroptera male and Ara ararauna female (Aves, Psittaci) combines parental features with a character which is found in some more “primitive” species of the genus but does not occur in the two parent species. The anatomical significance of this “ancestral” pattern mark is discussed.

1. 1. Blood from different avian species displays the presence of either two major hemoglobin components, type 1 and type 2, or a unique one similar to type 2. 2. 2. Some aspects of oxygen equilibrium are reported for both types of hemoglobin obtained from several species, namely oxygen affinity in the absence or presence of inositolhexaphosphate, the Bohr effect and the heme-heme interaction. 3. 3. The analogies and differences illustrated at the level of the physicochemical parameters are also observed at the level of the physiological properties.

Descriptions and keys are given for the known species. The 11 new species and their type-hosts are: hyacinthini from Anodorhynchus hyacinthinus, rubrogenysi from Ara rubrogenys, mitratae from Aratinga mitrata, farinosae from Amazona farinosa, chloropterae from Ara chloroptera, carrikeri from Ara militaris, brotogerisi from Brotogeris jugularis, pyrrhurae from Pyrrhura picta, molinae from Pyrrhura molinae, patagoni from Cyanoliseus patagonus, and aratingae from Aratinga aurea. There are 2 new synonymies: P. genitalis Carriker ( = Psittacobrosus nobilis Carriker) and P. forpi Carriker ( = Colpocephalum burhinoides Carriker).