12. AITHUETJS. 65 



Trocliilus Diaria, Gosse, Ann, ^'- Mag. N. H. 1849, iii. p. 258; id. III. 



B. Jam. pi. 22. 

 Polytnuis ceplialatra, Bp. Consp. Av. i. p. 72 ; id. Reo. Zool. 1854, 



p. 354 ; ScL P. Z. S. 1861, p. 79 ; Muls. 4- Ven: Class. Troch. 



p. 36. 

 Aithurus polytmus, Cab. 4" Seine, 3Ius. Hein. iii. p. 50 ; Scl. Cat. 



Am. B. p. 293 ; Gould, Intr. Troch. p. 75 ; Gray, Hand-l. B. i. 



p. 134 ; Elliot, Ibis, 1872, p. 353 ; id. Sijn. Troch. p. 9o ; Muls. Hist. 



Nat. Ois.-Mouches, i. p. 335, pi. 29, iv. p. 185 ; id. Ann. 80c. Linn. 



Lyon, xxii. p. 207 ; Budes-Desl. Ann. Mus. Cae?i, i. p. 296 ; <S'«/y. 



Cat. Strickl. Coll. p. 362 ; Cory, B. West Ind. p. 147. 

 Aithurus forticatus, Heine, J.f. O. 186-3, p. 205. 

 Aithiu'us fuligiuosus, Hill (apud Gray, Hand-l. i. p. 134). 



Adult male. Upper surface shining grass-green ; crown, elongated 

 crest, and sides of the head as far as a line below the eyes black ; 

 under surface glittering grass-green ; under tail- coverts blue-black ; 

 wing-coverts like the back ; tail blue-black, the central rcctrices 

 washed with green : bill flesh-colour, tip dark ; feet dark hazel. 

 Total length about 10 inches, wing 2-6 ; tail — pair of rectrices next 

 the outermost 7'2, outermost pair 1-7, central pair 1-2 ; bill 0-95. 



Adult female. Upper surface shining grass-green ; crown brown, 

 each feather with a green discal spot ; under siu-face white, each 

 feather of the sides of the neck and flanks with a shining green 

 discal spot ; under tail-coverts white ; tail blue-black, the two 

 lateral feathers on either side tipped with white, the central pair 

 washed with green. 



Touncj male. Upper surface, including the head, shining grass- 

 green ; under surface dull green, throat and belly sooty black ; tail 

 blue-black, the central rectrices washed with green, the rest tipped 

 with the same colour ; maxilla of the bill hazel, mandible flesh- 

 colour ; the pair of rectrices next the outermost hardly exceed the 

 outer pair in length. As the young males advance to maturity the 

 adult plumage first appears in the glittering green feathers of the 

 throat, the lateral rectrices lose their green tips, and the pair next 

 the outermost gradually elongate ; the maxilla too becomes paler, 

 and gradually assumes the flesh-colour of the adult. 



Hah. Jamaica. 



a. S ad. ; b. $ Jamaica. H. Bryant [P.] 



ad. sk. 



c, d. c? ad.; e, Jamaica. {H. Bryant). Salvin-Godman & 



/. 5 ad. sk. Sclater Colls. 



17. c? ad. sk. Jamaica. (0-?bi(rn). Sclater Coll. 



h, i. S ad. ; j. Moneague, Jamaica, Aug. Salvin-Godman Coll. 



2 ad. sk. (0. .S'. ^- F.D.G.). 



k. cS ad. ; /, wi, Jamaica. Salvin-Godman & 



n. (S juv. ; o. Gould Colls. 



2 ad.'sk. 



p, q. (S ad. ; r, s. Jamaica. Capt. Hamilton [P.J. 



2 ad. sk. 



f, u, V. S ad. ; w. Jamaica (/. Hill). Gould & Sclater 



(^ juv. sk. Colls. 



VOL. XVI. F 



