Black-chested Snake-Eagle

Here the details of the Black-chested Snake-Eagle named bird below:

SCI Name:  Circaetus pectoralis
Protonym:  Circoeetus pectoralis S.Afr.Comm.Advertiser 4
Taxonomy:  Accipitriformes / Accipitridae / Circaetus
Taxonomy Code:  bkbsne1
Type Locality:  South Africa.
Author:  Smith, A
Publish Year:  1829
IUCN Status:  Least Concern

DEFINITIONS

CIRCAETUS
(Accipitridae; Ϯ Short-toed Eagle C. gallicus) Gr. κιρκος kirkos  type of hawk, here associated with the harrier; αετος aetos  eagle; like its congeners, commonly called snake eagles, the Short-toed Eagle has a flattened owl- or harrier-like face; "11. CIRCAËTE, Circaëtus.  Falco, Linn. Gm. Lath.  Bec presque droit à la base, convexe en dessus. — Cire un peu poilue. — Tarses alongés. —Doigts un peu courts; les extérieurs unis à l'origine par une membrane. —Ongles courts, presque égaux.   Esp. Jean-le-Blanc, Buff.  ...  Circaetus [κιρκος, circus,  αετος, aquila]." (Vieillot 1816); "Circaëtus Vieillot, Analyse, 1816, p. 23. Type, by monotypy, "Jean-le-Blanc" Buffon = Falco gallicus Gmelin." (Peters, 1931, I, p. 269). 
Var. Circaetos, Circaetes, Circaeetus, Circaeatus, Circaestus.
Synon. Melanaetus, Occipiter, Senex, Smithaetus.

pectorale / pectoralis
L. pectoralis  of the breast, pectoral  < pectus, pectoris  breast.
● ex “Engoulevent à collier” of Levaillant 1806 (Caprimulgus).
● ex “Janfréderic” of Levaillant 1801-1804, pl. 111 (syn. Cossypha caffra).
● ex “Austral Quail” of Latham 1823 (Coturnix).
● ex “Gold-breasted Manakin” of Latham 1801 (Euphonia).
● ex “Petit Merle brun à gorge rousse de Cayenne” of d’Aubenton 1765-1781, pl. 644, fig. 2, and “Yellow-breasted Thrush” of Latham 1785 (syn. Gymnopithys rufigula).
● ex “Red-breasted Snipe” of Montagu 1813 (syn. Limnodromus griseus).
● ex “Black-breasted Flycatcher” of Latham 1787 (Pachycephala).
● ex “Mbatuitui pecho listado” of de Azara 1802-1805, no. 389 (syn. Pluvialis dominica).
● ex “Tachurí pecho amarillo” of de Azara 1802-1805, no. 165 (Polystictus).
● ex “Black-breasted Grosbeak” of Latham 1783 (syn. Sporophila americana).
● ex “Cordon Noir” of Levaillant 1805, pl. 150 (artefact).
● ex “Hausse-Col Noir” of Levaillant 1802, pl. 110 (artefact).