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Genus MEGARHYNCHUS, Thunb. 



Megarhynchus pitangua (Linn.). 

 (PJate Y. fig. 4.) 



Megarhynchus pitangua, Scl. Cat. Birds B. M. xiv..p. 189 (1888); Salv. 

 Sf Godm. tiiol. Centr.-Amer., Aves, ii. p. 51 (1889) ; Nehrk. Cat. 

 Eiersamml. p. 140 (1899) ; von Iheriny, Rev. Mus. Paulista, iv. 

 p. 235 (1900) ; Sharpe, Hand-l iii. p. 130 (1901). 



The eggs of the Pitangua Tyrant-bird in the Collection are of a 

 regular oval shape, slightly glossy and cream-coloured, densely 

 speckled, spotted, and blotched with reddish brown and lavender. 

 The markings are more dense at the broad end than elsewhere, 

 forming at that part an irregular cap. Two examples measure 

 respectively : 1-15 by -82 ; 1-11 by -82. 



4. Costa Rica, 14th May. C. F. Underwood, Esq. [C.]. 



Megarhynchus chrysocephalus (Tscliudl). 



Myiodynastes chrysocephalus, Scl. Cat. Birds B. M. xiv. p. 187 (1888). 

 Megarhynchus chrysocephalus, Sharpe, Hand-l. iii. p. 130 (1901). 



Of the eggs of the Golden-headed Tyrant-bird in the Collection, 

 two specimens are inseparable from those of Myiodynastes luteiventcr, 

 and two very closely resemble the eggs of Pitangus caudifasciatus. 

 Four examples measure respectively : 1*1 by '71 ; 1*03 by -73 ; 

 1-03 by -72; 1-05 by -71. 



4. Venezuela (Gugenheimer). Crowley Bequest. 



Genus ONYCHORHYNCHUS, Fischer. 



Onychorhynchus mexicanus (Scl.). 

 (Plate V. fig. 12.) 



Muscivora mexicana, Scl. Cat. Birds B. M. xiv. p. 193 (1888) ; Salv. Sf 

 Godm. Biol. Centr.-Amer., Aves, ii. p. 53 (1889) ; Nehrk. Kat. 

 Eiersamml. p. 141 (1899). 



Onychorhynchus mexicanus, Sharpe, Hand-l. iii. p. 130 (1901). 



The eggs of the Fan-crested Tyrant-bird are of a regular oval 

 shape and devoid of gloss. They are of a pinkish cream-colour, very 

 thickly streaked and smeared with deep vinous brown, to such an 

 extent in some specimens that little of the ground-colour remains 

 visible. Four examples measure respectively : -8 by '58 ; -81 by '56 ; 

 85 by '55 ; -84 by '55. 



4. Panama (McLean-nan). Salvin-Godman Coll. 



