20 



ALLEN'S NATURALIST'S LIBRARY. 



greatly from Cuckoos, and are, moreover, entirely confined t 

 the Ethiopian Region. 



The Family CucitUdce, which is co-equal in extent wit 

 the Sub-order, as defined above, contains six Sub-familie 



. F.n. 



Left foot of a Cuckoo (Endynamis cyanocephald), to show the arrange- 

 ment of the plantar tendons. [From the Catalogue of Osteological Speci- 

 mens in the Museum of the Royal College of Surgeons.] F.H., Flexor 

 longiis halhicis : F.P., Flexor perforans digit arum. 



viz., the True Cuckoos (Cuculince\ found all over the world, 

 the Lark-heeled Cuckoos ( Centropodinct), distributed over the 

 tropical portions of the Old World, the Bush Cuckoos (Pha>m- 

 cophaince), inhabiting the tropics in Africa, India, and the 



