Bismarck Whistler

Here the details of the Bismarck Whistler named bird below:

SCI Name:  Pachycephala citreogaster
Protonym:  Pachycephala citreogaster Proc.Linn.Soc.NewS.Wales 1 p. 66-67
Taxonomy:  Passeriformes / Pachycephalidae / Pachycephala
Taxonomy Code:  biswhi1
Type Locality:  New Britain.
Author:  Ramsay, EP
Publish Year:  1876
IUCN Status:  

DEFINITIONS

PACHYCEPHALA
(Pachycephalidae; Ϯ Golden Whistler P. pectoralis) Gr. παχυς pakhus  large, thick; κεφαλη kephalē  head; from the appearance of their large rounded heads the Indomalayan and Australasian whistlers were formerly known as 'thickheads'; "The interval betweeen the present groups and those of the Pari, where we entered on the family [Pipridæ], appears to be filled up by a race of birds peculiar to New Holland, and hitherto uncharacterized, of which the Muscicapa pectoralis, Lath. is the type*. These, uniting many external characters, at least, both of the Berry-Eaters and Flycatchers, exhibit also in general appearance a considerable resemblance to the Pari, and will be found, I conjecture, to be the connecting bond between all these groups.  ...  * Mr. Swainson has lately formed this group into a genus by the name of Pachycephala.  Nov. 1824." (Vigors 1825); "Genus. PACHYCEPHALA*. Swains. MSS.  ... Caput tumidiusculum.  ...  In their general appearance some of the species exhibit a resemblance to the birds of the genus Procnias, Ill., while by the puffed-out appearance of the feathers about the head, we trace an approximation to some of the Linnean Pari.  ...  * παχυς crassus, and κεφαλη caput" (Vigors & Horsfield 1827). 
Var. Pachycephalus. 
Synon. Alisterornis, Gilbertornis, Hylocharis, Hyloterpe, Lewinornis, Malacolestes, Mattingleya, Musciterpe, Muscitrea, Mutevodia, Pachycilodryas, Psaltricephus, Pucherania, Timixos.

citreogaster
L. citreus  citrine  < citrus  citrus tree, citron; gaster, gasteris  belly.

SUBSPECIES

Bismarck Whistler (tabarensis)
SCI Name: Pachycephala citreogaster tabarensis
tabarensis
Tabar I., Tabar Group, Bismarck Archipelago, Papua New Guinea.

Bismarck Whistler (ottomeyeri)
SCI Name: Pachycephala citreogaster ottomeyeri
ottomeyeri
Fr. P. Rudolf Otto Maria Meyer (1877-1937) German missionary to the Bismarck Archipelago 1902-1937 (subsp. Lalage leucomela, subsp. Pachycephala pectoralis, subsp. Zosterops griseotinctus).

Bismarck Whistler (goodsoni)
SCI Name: Pachycephala citreogaster goodsoni
goodsoni
Arthur Thomas Goodson (1873-1931) assistant ornithologist at Tring Mus. 1893-1931 (subsp. Anthus leucophrys, subsp. Colluricincla megarhyncha, subsp. Cyanoderma ruficeps, syn. Eclectus roratus solomonensis, subsp. Edolisoma melas, subsp. Hypotaenidia philippensis, subsp. Macropygia mackinlayi, subsp. Pachycephala pectoralis, Patagioenas, Phylloscopus, syn. Sericornis rufescens, syn. Stachyris leucotis obscurata, subsp. Tangara aurulenta, syn. Treron aromaticus).

Bismarck Whistler (citreogaster)
SCI Name: Pachycephala citreogaster citreogaster
citreogaster
L. citreus  citrine  < citrus  citrus tree, citron; gaster, gasteris  belly.

Bismarck Whistler (sexuvaria)
SCI Name: Pachycephala citreogaster sexuvaria
sexuvaria
L. sexus  sex; varius  diverse, variegated, various.