338 Lord AYalden's Sketch 



Species belonging to the Cucididce, but classed by Gnielin 

 under other genera : — 



1. Trogon [Lamprococcyx) maculatus^ Gin., '' Zeylon." 



2. Phasianus {Geococcyx) mexicanus, Gm., ''Nov. Hispan. 

 calidioribus." 



The species of the genus Eudynamis have remained in so 

 much confusion, partly in consequence of the males being clothed 

 in a uniform black garb, v/hile the females and young males 

 assume a spotted and barred or otherwise variegated plumage, 

 that I avail myself of this opportunity to offer a sketch of the 

 group. It must be remembered that the adult males are only 

 to be distinguished specifically by their respective dimensions, 

 the relative proportions of their dimensions, and by the form, 

 and in two, if not in more instances, by the colour of the bill. 

 Perhaps in some species the practised eye may safely rely on the 

 nature of the iridescent hues of the plumage. But it is in the 

 colouring, and its distribution, of the young birds and adult 

 females that the m»st distinct and palpable difference prevails. 

 A superficial observer might, for instance, confound the adult 

 males of E. honorata (L.) and E. ransomi, Bp., but never the 

 females and young birds. 



1. Eudynamis honorata*, (L.), ex Briss. iv. p. 136, no. 15, 

 " Malabaria," $ vel av. juv. 



Cuculus niger, L., ex Edw. Birds, p, 58, t. 58, "Bengala/' ^ 

 adult. 



? C. scolopaceus, L., ex Edw. p. 59, t. 59, " Bengala,^^ ? vel 

 av. juv. 



C. indicus, Lath., Ind. Orn. i. p. 211, no. 11, ex Lath. Syn. 

 Sup. p. 99 (1790), " India," S adolesc. 



C. orientalis, L. var. y, Lath., Ind. Orn. i. p. 211, "Ben- 

 gala," J. 



? C. crassirostris, Steph., Gen. Zool. ix. pt. 1. p. 86 (1815), ex 

 Le Vaill. Ois. d'Afr. v. p. 59, t. 214, '' Africa " (!). Bengala j . 



? a crassirostris, Vieill., N. Diet. viii. p. 229, $ (1817), ex 

 Le Vaill. {I.e.). 



* I give honorata, L., precedence, as it comes first in the 'Systenia.' 



