White-breasted Antbird

Here the details of the White-breasted Antbird named bird below:

SCI Name:  Rhegmatorhina hoffmannsi
Protonym:  Anoplops hoffmannsi Bull.Br.Orn.Club 19 p.52
Taxonomy:  Passeriformes / Thamnophilidae / Rhegmatorhina
Taxonomy Code:  whbant5
Type Locality:  Borba, Rio Madeira, Brazil.
Author:  Hellmayr
Publish Year:  1907
IUCN Status:  Near Threatened

DEFINITIONS

RHEGMATORHINA
(Thamnophilidae; Ϯ Bare-eyed Antbird R. gymnops) Gr. ῥηγμα rhēgma, ῥηγματος rhēgmatos  fissure, cleft; ῥις rhis, ῥινος rhinos  nostril; “12. Rhegmatorhina^Ϯ gymnops, sp. nov.  ...  ^Ϯ Rhegmatorhina, genus novem Formicariidarum (ῥηγμα = fissura; ῥις = nasus).   GEN. CHAR.—Similar to Phlogopsis but differing very materially in the form of the nostril, which consists of a narrow longitudinal slit-like opening, overhung by a broad, rather thickened, membrane or operculum.  Orbital region entirely naked, the bare space broadly oval, slightly pointed anteriorly (about midway of the lores), but rounded posteriorly.  Feathers of pileum lengthened, narrow, decurved, rather stiff, and distinctly individualized, forming a loose crest when erected; those of the forehad and lores (anterior half) shorter, straighter, and more dense.  Tail more than two-thirds as long as wing, slightly rounded, the feathers broad and rounded.  Wing about three times as long as tarsus, much rounded (fifth and sixth quills longest).  Tarsus more than twice as long as bill from nostril, booted.  Colors plain.   Type, R. gymnops, sp. nov.” (Ridgway 1888).

hoffmannsi / hoffmansi
Wilhelm Hoffmanns (1865-1909) German collector in Peru 1903 and Brazil 1905-1908 (syn. Crypturellus soui albigularis, Dendrocolaptes, Epinecrophylla, syn. Pipra coronata x, Rhegmatorhina, subsp. Thamnomanes caesius).