Question on Melanotrochilus (1 Viewer)

I know that this question may be here the wrong place but I don't know on which subforum it might be correct.

OK I understood Melanotrochilus is now a synonym for Florisuga and I do not have an issue with this. Nevertheless I found Eugène Eudes-Deslongchamps publication of the name here and here.

But I found also that Deslongchamps published the name first in Guide du Naturaliste, 2, 1880, p. 7. Till now I failed to find it? Does anyone know if this is somewhere online? If yes where? I assume it is not Le Naturaliste: journal des échanges et des nouvelles.

To be more precise it should be

E. Deslongchamps, Étude sur le groupe des Jacobines (Florisuga) et le nouveaux sous-genre Melanotrochilus Guide du Naturaliste 2. Année. N. 1. 7–9

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P.S. At least above source may not the oldest published. See Errors Concerning the Date and Source of the Name Melanotrochilus Eudes-Deslongchamps (Trochilidae).

I have not found it online. Full name: Guide du Naturaliste, Revue Bibliographique des Sciences Naturelles. Bulletin Mensuel. Par A. Bouvier. A=M. Aimé Bouvier, de Bourg, vient de fonder a Paris un Guide de: Naturaliste.