Dark-backed Imperial-Pigeon

Here the details of the Dark-backed Imperial-Pigeon named bird below:

SCI Name:  Ducula lacernulata
Protonym:  Columba lacernulata Pl.Col. livr.28 pl.164
Taxonomy:  Columbiformes / Columbidae / Ducula
Taxonomy Code:  dbipig1
Type Locality:  Java.
Author:  Temminck
Publish Year:  1822
IUCN Status:  Least Concern

DEFINITIONS

DUCULA
(Columbidae; Ϯ Mountain Imperial Pigeon D. badia insignis) Nepalese name Dukul for the imperial pigeons (cf. Hindi names Dunkul and Doomkul); "Genus or Sub-genus — DUCULA nobis. — DUKUL OF THE NIPALESE (genericé)    Character of the genus:—bill equal to the head, straight, cylindric, very feeble; both mandibles membranous for three-fourths from the gape; tip of the upper mandible gently inclined—of the lower, strongly compressed; nares broad, linear, obliquely transverse, central; their groove faint; their tect subtumid.  Wings short, not rounded, 3, 4, 5 quills sub-equal and longest; central primaries with their tips wavily truncated.  Tail 14, long, strong and square; tarsi very low, and plumed nearly to the toes laterally, less in front; toes depressed with broad flat soles; lateral fores sub-equal, hind large; nails strong, arched and acuminated; central and hind equal, lateral fores equal, less; orbits nude; plumage simple.  The above is a tedious charcater, but it is a distinct one. Those who love more summary proceedings may perhaps approve the following: "Bill and wings as in Goura; legs and feet as in Vinago."  ...  Lastly, though Ducula, like Vinago, be exclusively arboreal and fruit-eating; the latter is eminently gregarious—the former, almost a solitary.   Species new. DUCULA INSIGNIS. Great Ducula, nobis." (Hodgson 1836); "Ducula Hodgson, As. Res., 19, 1836, p. 160. Type, by monotypy, Ducula insignis Hodgson." (Peters, 1937, III, p. 42).   
Synon. Carpophaga, Carpophagella, Compsoenas, Globicera, Lamprura, Muscadivora, Muscadivores, Myriphaga, Myristicivora, Phaenorhina, Pterocolpa, Ptilocolpa, Rinopus, Serresius, Zonoenas, Zonophaps.

lacernulata / lacernulatus
Mod. L. lacernulatus  mantled, cloaked  < L. lacernula  small cloak  < dim. lacerna  mantle (cf. Late L. lacernula  tippet).

SUBSPECIES

Dark-backed Imperial-Pigeon (Gray-headed)
SCI Name: Ducula lacernulata lacernulata
lacernulata / lacernulatus
Mod. L. lacernulatus  mantled, cloaked  < L. lacernula  small cloak  < dim. lacerna  mantle (cf. Late L. lacernula  tippet).

Dark-backed Imperial-Pigeon (Pink-headed)
SCI Name: Ducula lacernulata williami
williami
● William Doherty (1857-1901) US traveller, adventurer, naturalist, collector (subsp. Ducula lacernulata).
● “Dédié à M. William Wilson de Paris, amateur distingué, dont la modestie rehausse le grand mérite” (de Lattre & Bourcier 1846); William Savory Wilson (fl. 1853) US financier resident in Paris (per Beolens et al. 2014) (Metallura).
● William Washa Chikundulo (fl. 1949) African collector with C. White in Northern Rhodesia (= Zambia) (syn. Turdus pelios stormsi).

Dark-backed Imperial-Pigeon (Gray-crowned)
SCI Name: Ducula lacernulata sasakensis
sasak / sasakensis
Malay name Tanah Sasak for the island of Lombok, Indonesia.