Page:The Fauna of British India, including Ceylon and Burma (Birds Vol 2).djvu/17

b'. Second primary very much shorter than fifth. c". Frontal feathers of ordinary structure, not concealing the nostrils. '". Rictal bristles short and few in number, generally less than six. 4 . Sexes different. a 3 . In both sexes base of tail white, upper tail-coverts black, upper plumage brown or rufescent, never blue nor black SIPHIA, p. 7. b 5 . Males with whole upper plu- mage blue or black ; lower plumage never entirely blue or greeii. Females brown or rufescent above, never com- bined with black upper tail- coverts and white on tail. a 6 . Bill wide at base and strong. CYORNIS, p. 11. b 6 . Bill narrow throughout, and feeble NITIDULA, p. 27. c 5 . Both sexes with the entire plumage suffused with blue or green STOPAROLA, p. 27. 6 4 . Sexes alike ; plumage plain brown or rufous throughout. d s . First primary never less than half second. c 6 . Bill laterally compressed ; lower mandible pale MUSCITREA, p. 30. d 6 . Bill flattened ; lower man- dible dark ANTHIPES, p. 31. e 5 . First primary much less than half second ALSEONAX, p. 34. b'". Rictal bristles very long and nume- rous, about ten on each side. c 4 . Tail much rounded; first primary much longer than half second . . OCHROMELA, p. 37. d*. Tail quite even ; first primary much less than half second .... CULICICAPA, p. 38. d". Frontal feathers lengthened and very dense, concealing the nostrils. c'". Bill carinated and narrow; both sexes with a brilliant neck-spot . . NILTAVA, p. 39. if". Bill broad and flattened ; no neck- spot in either sex PHILENTOMA, p. 42. b Tail as long as, or longer than, wing. c . Head crested TERPSIPHONE, p. 44. d'. Head not crested. e". Tail about equal to wing. e'" '. Length of culmen about twice the breadth of bill at forehead HYPOTHYMIS, p. 48. /'". Length of culmen about equal to breadth of bill at forehead CHKLIDORHYNX, p. 51. f". Tail considerably longer than wing . . RHIPIDURA, p. 52.