Reunion Gallinule

Here the details of the Reunion Gallinule named bird below:

SCI Name:  Porphyrio caerulescens
Protonym:  Apterornis caerulescens Rev. Zool. 1848 292-295
Taxonomy:  Gruiformes / Rallidae / Porphyrio
Taxonomy Code:  reugal1
Type Locality:  
Author:  Sélys-Longchamps
Publish Year:  1848
IUCN Status:  Extinct

DEFINITIONS

PORPHYRIO
(Rallidae; Ϯ Purple Swamphen P. porphyrio) L. porphyrio, porphyrionis  swamphen  < Gr. πορφυριον porphurion  swamphen  < πορφυρα porphura  purple; "Porphyrio. Genus 87.  ...  Le genre de la Poule-Sultane.  Genus Porphyrionis.  ...  **1. LA POULE-SULTANE.  ...  PORPHYRIO.  ...  Elle est à peu près de la grosseur d'une Poule" (Brisson 1760): based on "Porphyrio" or "Porphyrion" of many authors, and Fulica Porphyrio, Linnaeus, 1758; "Porphyrio Brisson, Orn., 1760, 1, p. 48; 5, p. 522. Type, by tautonymy, Porphyrio Brisson = Fulica porphyrio Linné." (Peters 1934, II, 207). The Purple Swamphen has a wide distribution in the Old World from Spain to Samoa, but some of its forms may warrant specific separation, as in Peters 1934, II, who recognised P. porphyrio, P. madagascariensis, P. poliocephalus, P. pulverulentus, and the extinct P. albus.
Var. Parphyrio, Porphyrion (Gr. πορφυριον porphurion  swamphen), Porphirio. 
Synon. Caesarornis, Cyanornis, Glaucestes, Hydrornia, Ionornis, Jonocicca, Kentrophorina, Mantellornis, Notornis, Porphyriola, Porphyrula.

porphyrio
● Gr. πορφυριος porphurios  purple-clad, bright-red (syn. Habia rubica).
● L. porphyrio, porphyrionis  swamphen  < Gr. πορφυριον porphurion  swamphen, gallinule  < πορφυρα porphura  purple; "82. FULICA.  ...  Porphyrio.  3. F. fronte calva, corpore violaceo, digitis simplicibus.  Fulica major pulla, fronte cera coccinea oblongo-quadrata. Brown. jam. 479.  Porphyrio. Alb. av. 3. p. 79. t. 84. Raj. av. 116. n. 13. Edw. av. 87. t. 87. Dodart. act. 3. p. 30?  Habitat in Asia, America." (Linnaeus 1758) (Porphyrio).

caerulescens
Unattested L. caerulescens, caerulescentis  bluish (neither caerulescere nor caerulescens have been found in Classical Latin, but their existence may be inferred from caeruleus  azure-blue, by the example, amongst others, of rufus  red, ruddy, giving rufescere  to become reddish, and rufescens  reddish).
● "61. ANAS.  ...  cærulescens.  10. A. grisea, subtus alba, tectricibus alarum dorsoque postico cærulescentibus.  Anser canadensis, alis cæruleis. Edw. av. 152. t. 152.  Habitat in Canada." (Linnaeus 1758) (Anser).
● "43. LANIUS.  ...  cærulescens.  8. L. cauda forficata, corpore nigro cærulescente, abdomine albo.  Lanius cauda forcipata. Edv. av. 96. t. 56.  Habitat in Benghala." (Linnaeus 1758) (Dicrurus).
● ex “Héron bleuâtre de Cayenne” of d’Aubenton 1765-1781, “Crabier bleu à cou brun” of de Buffon 1770-1785, and “Blue Heron” of Latham 1785 (syn. Egretta caerulea).
● ex “Blue Roller” of Latham 1785 (syn. Eurystomus glaucurus).
● "41. FALCO.  ...  cærulescens.  7. F. cera palpebris pedibus subtusque luteus, dorso nigro-cærulescente, temporibus linea alba inclusis.  Accipiter minimus benghalensis. Edv. av. 108. t. 108.  Habitat in Asia." (Linnaeus 1758). This epithet is the thirteenth name in avian nomenclature. (Microhierax).
● ex "Oiseau bleu" of Dubois 1671, and "Gros oiseau" of Brown 1724 (‡Porphyrio).
● ex “Blue-necked Rail” of Latham 1785 (Rallus).
● ex "Fauvette bleuâtre de S. Domingue" of de Buffon 1770-1783, and "Blue-grey Warbler" of Latham 1783 (Setophaga).
● ex “Batara negro y aplomado” of de Azara 1802-1805, no. 213 (Thamnophilus).
● ex “Caerulean Creeper” of Latham 1801 (syn. Zosterops lateralis).