SSO SAIS I cL ORIN A FA LLM SLL PEON Ta SAFI PN Fi SSL lA ENS tl LM APR DL INTRODUCTION. Wa mbers t the fen) Oy ct has a { oe : oe : CUrvat 13. Eupsychortyx parvicristatus : s : : : ; TAL, SOT rs and the », = ~ "NE upper surf 14. —___—_—— leucopogon . : : : : ; : Pl. XIII. se of the Members dd spotted Markiy mats OL the IS decorated with simil For the fourth section I propose the generic term =) a le male Eh SN aU ( es iS | PHILORTYX, S s ) Zk WITH THE FOLLOWING CHARACTERS :— “ QC SA Habitus idem ut im genere ‘ Ortyx” dicto. Indumentum plumatile, molle et laxum, dorsi superioris plumis, nec non scapularum, pectoris et laterum latis et truncatis; illis et pectoris et laterum transversim distincté nigro Pl. IX alboque fasciatis, at non guttatis. EN 2 ae : General form that of Ortyx ; plumage soft and yielding ; feathers of the mantle, scapularies, chest and flanks broad P] ae : : X] and truncate ; those of the two latter distinctly barred across with black and white, and not spotted. The only known species is 0 5 15. Philortyx fasciatus : Pl. XIV. Ortyx Perrotiana, O. Des Murs, Rev. Zool. 1845, p. 207. I have had no opportunity of examining the bird described by M. O. Des Murs, under the above appel- lation; but, judging from the description, I believe it to be identical with this species. The Philortyx fasciatus is confined to Mexico, and I believe the sexes are similar in their markings. it moment, | For the fifth section I retain Wagler’s name of differences to warrant its