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Message: <blockquote data-quote="l_raty" data-source="post: 3612747" data-attributes="member: 24811">"Habitat in sylvis fluvii Tonantins" = "Lives in the forests of the river Tonantins."Spix says us, just a bit higher [<a href="https://archive.org/stream/bub_br_1918_017354-09#page/n149/mode/2up" target="_blank">on the very same page</a>], about his Macropus phasianellus: "Habitat in sylvis Tonantins, fluvii lateralis fl. Salimoëns", i.e., "Lives in the forests of the Tonantins, a side river (= tributary) of the river Salimoëns".The Rio Tonantins flows into the Solimões in Tonantins, Amazonas, see [<a href="http://www.gifex.com/imapa/americas/md_amazonas_brazil.pdf" target="_blank">this map</a>].(Beware also: Tonantins, not Tocantins. Google tends to mix them up, [<a href="https://www.google.com/maps/place/Tonantins+-+State+of+Amazonas,+69685-000,+Brazil/@-2.8855614,-67.849602,13z/data=!4m5!3m4!1s0x91f7bd6247b0e423:0xc808b3e7778de70f!8m2!3d-2.7915832!4d-67.6662231" target="_blank">Google maps</a>] even calls the Rio Tonantins in Amazonas "Rio Tocantins" -- which your source above might (?) do as well; "Caiueshana (Caixana) -- rios Japurá - Tocantins" = the Caiueshana, also known as Caixanas, are/were to be found along the Rios Japurá and 'Tocantins'=Tonantins? As I understand it, Tocantins is a state, Tonantins a municipality in the state of Amazonas; both have a river bearing their name; the true Rio Tocantins flows northwards through the state of the same name, and from there, through the state of Pará, to the region of Belem.)Re. the ID of Macropus caixana Spix, see Hellmayr 1906 [<a href="http://biodiversitylibrary.org/page/35672089" target="_blank">here</a>]. Spix gave this name tentatively to two birds, calling them male and female of a single species, but with a question mark in the case of the female. Hellmayr identified:<ul> <li data-xf-list-type="ul">The male (#1 on the plate) as "Piaya rutila (Illiger)", citing Coccyzus minutus Vieillot as a synonym. That bird now goes under the latter species name, as Coccycua minuta (Vieillot), Little Cuckoo.</li> <li data-xf-list-type="ul">The female (#2 on the plate) as "Piaya melanogastra (Vieillot)". We now write this Piaya melanogaster, Black-bellied Cuckoo.</li> </ul>From the distribution maps I have at hand, both are present in W Brazil and absent from the E; I think neither occurs anywhere sympatrically with Eupsittula cactorum; neither occurs in Caxias, Maranhão; both occur in Tonantins, Amazonas.</blockquote>

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