Slaty Tanager

Here the details of the Slaty Tanager named bird below:

SCI Name:  Creurgops dentatus
Protonym:  Malacothraupis dentata Proc.Zool.Soc.London Pt2 p.353 pl.31
Taxonomy:  Passeriformes / Thraupidae / Creurgops
Taxonomy Code:  slatan2
Type Locality:  Tilotilo, Prov. Yungas [=Yungas of La Paz], Bolivia.
Author:  Sclater & Salvin
Publish Year:  1876
IUCN Status:  Least Concern

DEFINITIONS

CREURGOPS
(Thraupidae; Ϯ Rufous-crested Tanager C. verticalis) Genus Creurgus Morris, 1837, shrike; ωψ ōps, ωπος ōpos  appearance; “123. CREURGOPS VERTICALIS, sp. et gen. novum. (Pl. CXXXII. fig. 2.)   CREURGOPS *, genus novum, Lanioni et Trichothraupidi affine, sed rostro diverso.  Rostrum breve, crassum, culmine versus apicem incurvo, gonyde vix ascendente, commissura modice arcuata, mandibula superiore dente mediali distincto et altero finali instructo; vibrissis rictalibus nonnullis: alæ modicæ, caudæ tertiam partem attingentes, remigibus secunda, quarta et quinta æqualibus et longissimis, prima his paulo breviore: cauda longa, apice quadrata.   ...  This peculiar Tanager seems to belong to the neighbourhood of Lanio, Tachyphonus and their allies, and, like the former, has a very sharply defined notch about two-thirds of the distance along the edge of the upper mandible. But the bill is otherwise very different from that of Lanio, being much shorter, broader, thicker, and more swollen, with the culmen much arched towards the tip.   ...   *κρεουργος lanius, et ωψ facies.” (P. Sclater 1858); "Creurgops P. L. Sclater, 1858, Proc. Zool. Soc. London, 26, p. 73. Type, by monotypy, Creurgops verticalis Sclater." (Storer in Peters, 1970, XIII, p. 287).
Synon. Malacothraupis.

dentata / dentatus
L. dentatus  toothed  < dens, dentis  tooth.