Elliot's Storm-Petrel

Here the details of the Elliot's Storm-Petrel named bird below:

SCI Name:  Oceanites gracilis
Protonym:  Thalassidroma gracilis Ibis p.391
Taxonomy:  Procellariiformes / Oceanitidae / Oceanites
Taxonomy Code:  wvspet1
Type Locality:  west coast of South America.
Author:  Elliot
Publish Year:  1859
IUCN Status:  Data Deficient

DEFINITIONS

OCEANITES
(Oceanitidae; Ϯ Wilson's Storm-petrel O. oceanicus) Gr. myth. Oceanides or Oceanitides, the sea nymphs, three thousand in number, the daughters of the sea god Oceanus and the goddess Tethys; Wilson’s Storm-petrel is the most numerous seabird in the world, breeding on sub-Antarctic islands in its millions; "GEN. 158.  OCEANITES NOV. GEN.    452. O. WILSONI Bonap. — Thalassidroma Wilsoni Bonap. Syn. p.367. — Bonap. List of the Birds p. 64. n. 483.  An den südlichen Küsten Nord-Amerika's; ist in den Brittischen Meeren vorgekommen.    Anmerk.  Zu dieser Gattung gehört ferner:  1. PROCELLARIA GRALLARIA Lichtenst.   ...   2. PROCELLARIA MARINA Lath.   ...    b⁵. Läufe gestiefelt; der Daumnagel ist kurz, konisch, ein nach innen gekehrter Höker, nicht bis zur Zehenwurzel ragend; die Mittelzehe mit Nagel über 2mal so lang als der Schnabel; Lauf fast 3mal so lang als der Schnabel; Bürzelfedern weiß oder grau, ohne schwarze Spitzen.   158. Oceanites.    ...   GEN. 158. OCEANITES.  Schwanz schwach gegabelt; die Flügel überragen den Schwanz; Gefieder braunschwarz; nur die obern und untern Schwanzdeckfedernspitzen weiß; die Spitzen der großen Flügeldeckfedern bilden eine grauweißliche Querbinde.   452. O. Wilsoni." (von Keyserling & Blasius 1840); "Oceanites Keyserling and Blasius, Wirbelth. Eur., 1, 1840, p. xciii, 131, 238. Type, by subsequent designation, Procellaria wilsonii Bonaparte = Procellaria oceanica Kuhl. (Gray, List Gen. Bds., 1841, p. 99.)" (Peters 1931, I, 68). 
Var. Oceamtes, Oceanitis.
Synon. Procellata.

gracilis
L. gracilis or gracilus  slender, elegant, slim, thin.
● “has many characters in common with the Ptilotis chrysotis ... and the Ptilotis similis ... but it differs from both in the greater slenderness of its form, in its diminutive size, and, especially from the former, in the uniform colouring of its throat and abdomen” (Gould 1866) (Microptilotis).
● ex “Gracile Goatsucker” of Latham 1801 (syn. Podargus strigoides).

SUBSPECIES

Elliot's Storm-Petrel (galapagoensis)
SCI Name: Oceanites gracilis galapagoensis
galapagensis / galapagoensis
Galápagos Is. (Spanish galopegos  tortoises).
● Erroneous TL. Galápagos Is. (= California) (syn. Zonotrichia coronata).

Elliot's Storm-Petrel (gracilis)
SCI Name: Oceanites gracilis gracilis
gracilis
L. gracilis or gracilus  slender, elegant, slim, thin.
● “has many characters in common with the Ptilotis chrysotis ... and the Ptilotis similis ... but it differs from both in the greater slenderness of its form, in its diminutive size, and, especially from the former, in the uniform colouring of its throat and abdomen” (Gould 1866) (Microptilotis).
● ex “Gracile Goatsucker” of Latham 1801 (syn. Podargus strigoides).