294 ALCEDlNIDiI\ 



Key to the Species, 

 a. With no white on the lower back. [Mo- 



NACHALCYON.] 



«'. Under surface of body rufous, with no bars 

 across the breast or ochreous bars on the 

 back ; head bkie, lighter on the nape. 



n". Entire sides of face blue monachus cJ , p- 294. 



//'. Lores, eyebrow, and cheeks deep rufous 



like the sides of the neck monachus 5 , p. 294. 



b'. Under surface of body and collar round the 

 hind neck ochreous or yellowish white, 

 with numerous cross bars of dusky black- 

 ish ; head uniform deep blue cyanocephalns, p. 295. 



h. Lower back and rump silvery white ; under 

 surface of body pure white ; rest of plumage 

 blue-black. [Caeidonax.] fulgidus, p. 296. 



1. Monachalcyon monachus, 



Dacelo princeps, Forsten, MSS. ; Gray, Sand-l. B. i. p. 89, no. 1068 



(1369). 

 Halcyon monachus, Gray, Gen. B. i. p. 79 (1846) ; Cass. Cat. Sale. 



Philad. Mns. p. 8 (1852) ; Bi). Consp. i. p. 1-54 (1850) ; Wall. 



Ibis, 1862, p. 142. 

 Dacelo monachus, Gray, List Fissir. Brit. Mus. p. 53 (1848) ; 



Bhjth, Cat. B. Mus. As. Soc. p. 46 (1849). 

 Monachalcyon princeps, Wald. Tr. Z. S. viii. p. 4-3 (1872) ; Salvad. 



Ann. Mus. Genov. mix. p. G53 (1877) ; Meyer, Ibis, 1879, p. 60. 

 Halcyon princeps, Cass. Cat. Hale. Philad. Mus. p. 8 (1882). 

 Paralcyon princeps, Bj}. Consp. Valuer. Anis. p. 9 (1854). 

 Dacelo princeps, Schl. Mus. Pays-Bas, Alced. p. 24 (1863) ; id. Voij. 



Nederl. hid. pp. 20, 53, pi. vii. figs. 1, 2 (1864) ; id. Mus. Pays- 

 Bas, Alced. Reme, p. 16 (1874). 

 Monachalcyon monachus, Sharpe, Monoc/r. Alced. p. 255, pi. 98. 



figs. 1, 2 (1870) ; Guillem. P. Z. S. 1885, p. 547 (Kema). 



Adult male. General colour above olive-green, the wing-coverts 

 like the back ; the rump, upper tail-coverts, and tail dull bluish 

 green, the tail with a decided blue shade ; quills dusky brown, 

 externally olive-green, with a little more blue on the primaries and 

 primary-coverts ; head and nape blue, the forehead and lores dusky, 

 with a little reddish on the latter ; cheeks and ear-coverts blue 

 like the crown ; throat huffy white ; sides of neck deep ferruginous, 

 not forming a collar on the hind neck ; under surface of body also 

 ferruginous, paler in the centre of the abdomen ; under wing- 

 coverts and axillaries like the breast ; quills dusky brown below, 

 fulvescent about the base of the inner web. Total length 13 inches, 

 culmen 1'75, wing 5-5, tail 4-5, tarsus 0-8. 



Adult female. Differs from the male in the markings on the head 

 and neck, as follows : — the base of the forehead is washed with 

 ferruginous ; the lores, eyebrows, and ear-coverts are ferruginous, 

 as also the sides of the neck, foi'ming moreover a complete collar 

 round the hind neck ; the blue crown inclines slightly to lighter 



