ON THE " PERROQUET MASCAR1N " OP BRISSON. 97 



Palceornis. Moreover the beak is red *, as in most of the species of the 

 two last named genera ; whereas in Psittacus or Ooracopsis it is black, or 

 dirty white. The head is fully feathered t, the frontal plumes covering ibis, 1879, 

 the cere, so that the nostrils are concealed by them. The lores also are P' ^ 4 ' 

 fully feathered, and there is only a narrow circum orbital ring left naked. 

 In all the species of Coracopsis the cere is large and conspicuous, being 

 quite bare of feathers, there is a large nude circumorbital ring, and, par- 

 ticularly in C. vasa, the lores are sparingly feathered J. In Psittacus the 

 cere and nostrils are equally conspicuous, and the lores and cheeks even 

 more sparingly feathered. 



The feet (figs. 2, 3) differ from those of Ooracopsis in their shorter 

 and thicker tarso-metatarsi and shorter nails. Prof. Alphonse Milne- 

 Figs. 2 & 3. 



Feet of Mascarinus duboisi. 



Edwards extracted the lower mandible from the stuffed specimen in the 

 gallery of the Museum, and has figured it in his article on the various 

 forms of that bone in the different groups of Parrots . He says that it 



differs markedly from that of the species of Coracopsis, and perhaps more Ibis, 1879, 



p. 305. 



* Du Bois (cf. Ibis, 1876, p. 286) calls it " couleur de feu." 



t The figures, both of D'Aubenton (PI. Enl. 35) and Levaillant (Hist. Nat. Perr. ii. 

 pi. 139 [1805]), show a red beak, narrow naked orbital ring, and feathered lores and 

 cere. Hahn's figure does the same; but Wagler says the cere was uncovered (cf. 

 Fiusch, Pap. ii. p. 297). 



\ Wagler, who founded the genus Coracopsis (Abh. Math. Phys. Akad. Mun. i. 

 p. 501, 1832), says, in his characters of the genus, "Rostrum basicerd latd nudd cinctum 

 ..... nares maxima, patulcs Pili in loris et prope nares." 



Ann. Sci. Nat. Zool. 5 ine s^rie, vol. vi. p. 105, t. ii. fig. 4, and t. iii. fig. 8 (1866). 



H 



