from Northern Yucatan. 205 



Fam. Cuculedae. 



62. Grotqphaga suleirostris, Sw. 



63. Piaya mehleri, Bonap. 



64. Geococcyx inexicanus (Gin.). 



Fam. Picidae. 



65. Dryocopus scapularis ( Vigors). 



66. Picus scalaris, Wagl.; {parvus, Cabot) 



67. Sphyropicus varius (Li?m.). 



68. Centurus aXbifrons {Sio.)\ (<luhiu#, C<ih<>t.) 



In the collection are eight specimens which have the nasal 

 feathers and middle of abdomen bright scarlet, without an 

 exception; and in all, the two central rectrices are of an im- 

 maculate black. Prof. Sundeval {Cons. Av. Picinarum, 1866, 

 p. 52) places C. santacruzi, Bp. under alhifrons as a variety ; 

 Dr. Cabanis (J.f o. 1862,^;. 324) is of the same opinion ; the 

 yellow of the belly being more or less tinged with red is 

 thought due to age. Malherbe, however, considers thera dis- 

 tinct. I have seven specimens labelled C. santaerusi, from 

 Mexico and Guatemala; four Mexican examples from Jalapa 

 are in fine plumage, and have the nasal feathers and spot on 

 abdomen orange, some with a tinge of red; another, a female 

 from Orizaba, has these parts more red, but not so bright as 

 in the birds from Yucatan; of the two from Guatemala, one, :i 

 male, has these parts the nearest in color to Yucatan Bpecimens, 

 the other, a female, has them pale orange; this last has tin- 

 central tail feathers without spots or bars, whereas in all the 

 others called C. santaerusi, these feathers arc more or less 

 barred with white on the inner webs. 



In addition to the birds from Yucatan showing no oral 

 colors, they are whiter about the face and throat, and have the 

 white transverse Btriae of the upper plumage perceptibly finer 

 than the birds from Mexico. 



Here are some very decided points of difference apparently, 



JUNE, 1869. 14 Anw. Lyo, Nat. Hiht.. Vol. IX. 



