134 Zoological Society, 



inches ; beak to front, 1^ inch ; to gape, 11 inch ; wing, 5 J 

 inches ; medial rectrices, 4| inches ; external ditto, 21 inches ; tarsus, 

 10^ lines ; middle toe and claw, 13 lines; reversed ditto, 10 lines; 

 hind-toe entirely wanting. 



The beak is of moderate length, the culmen nearly straight, the 

 gonys ascending, the apex compressed, a slight but distinct ridge 

 running parallel to the culmen, and the nostrils are covered with 

 incumbent feathers. As the Tiga tridactyla resembles in its style of 

 plumage the orange-backed woodpeckers, Brachypteimus and Chryso- 

 colaptes, so the more uniform coloration of this species calls to mind 

 the green woodpeckers which form the typical Gecini. But the beak 

 is stronger and more adapted for chopping wood than in the latter 

 group, and resembles more the structure of that organ in the red- 

 winged and yellow- crested Gecini ^ such as G. nipalensis (Gray), G. 

 mentalis (Tem.), &c. 



Tiga tridactyla. — Identical with specimens sent by Mr. Jerdon 

 from Madras, except in being smaller. The wing measures only 5 

 inches, while in the Madras ones it is 5^ inches. Mr. Blyth has 

 already noticed this distinction, but I cannot consider it as a sjDe- 

 cific one. 



Hemicercus rubiginosus, Swains. Birds W. Af. v. 2. p. 150. (Picus 

 ruhiginosus, Eyton.) 



Hemicercus concretus (Tem.), PI. Col. 90. {Dendrocopus sordidus, 

 Eyton.) 



Cuculus Sonnerati, Lath. — This species, which occurs also in 

 Southern India, appears never to assume a typically adult plumage, 

 being invariably barred with brown and rufous above, and brown 

 and white below. 



Centropus rectunguis, Strickland. C. corpore nitide ceeruleo- 

 nigro, alis rufis, primariis fusco terminatis, ungue hallucis sub- 

 brevi, redo. 



Body and tail glossy black, with a deep blue tint on the head, 

 neck and breast ; wings wholly rufous, the primaries slightly tipped 

 with fuscous ; hind-claw short and straight. Total length, 14-15 

 inches; beak to front, Ij inch; to gape, Ij inch; height J inch; 

 width, ^ inch ; wing, 6 inches ; medial rectrices, 7^ inches ; external 

 ditto, 6^ inches ; tarsus, 1 J inch ; claw of hind-toe, ^ inch. Nearly 

 allied in size, form of beak and coloration to C. fJiilippensis , BufF. 

 PI. Enl. 824. (C. bubutus, Horsf.) of India, Java and the Philippines ; 

 but differs in the shorter wings and tail, and in the hind-claw being 

 almost perfectly straight, and only half an inch long ; while in C. 

 philippensis (sent by Mr. Jerdon from Madras) this claw is three- 

 quarters of an inch long and considerably curved : the wing measures 

 7^ inches and the tail 10 inches. 



Treron Capellei (Tem.), PI. Col. 143. — The largest of the genus, 

 and erroneously named militaris, in many museums. I inadvertently 

 described this as new, under the name of magnirostris in the Ann. 

 Nat. Hist., v. xiv. p. 116. 



