Phoebastria Immutabilis Bird

English Name:  Laysan Albatross
Latin Name:  Phoebastria immutabilis
Protonym:  Diomedea immutabilis Bull.Br.Orn.Club 1 p.48
Taxonomy:  Procellariiformes / Diomedeidae / Phoebastria
Taxonomy Code:  layalb
Type Locality:  Laysan Island.
Author:  Rothschild
Publish Year:  1893
IUCN Status:  Near Threatened

DEFINITIONS

PHOEBASTRIA
(Diomedeidae; Ϯ Short-tailed Albatross P. albatrus) Gr. φοιβαστρια phoibastria  prophetess  < φοιβος phoibos  prophet (see Phoebetria); "Genera et Species typicæ.  ...   4. a. *Phoebastria Rchb. brachyura (Diomedea - T.) Rchb.  Ic. Av. t. 26. ic. 345. t. 27. ic. 2616." (Reichenbach 1853); "Phoebastria Reichenbach, Av. Syst. Nat., p. v, "1852" (= 1853)—type, by monotypy [= by original designation], Diomedea brachyura Temminck = Diomedea albatrus Pallas." (Hellmayr & Conover 1948, XIII, 41).
Var. Phaebastria.
Synon. Galapagornis, Julietata, Laysanornis, Penthirenia.

immutabilis
L. immutabilis unchangeable  < in-  not; mutabilis  changeable  < mutare  to change (cf. immutabilis changed  < immutare to alter).
• "DIOMEDEA  IMMUTABILIS, sp. n.  ...  This Albatross belongs to the typical section of Diomedea as limited by Mr. Salvin, and is at once distinguished by attaining the coloration of the adult bird in the first plumage." (Rothschild 1893) (Diomedea).
• "Prinia mistacea immutabilis, subsp. nov.   This race, hitherto confused with tenella Cab. (which is limited to the coastal belt), is characterised by being considerably larger and much darker" (van Someren 1920) (syn. Prinia subflava melanorhyncha).