438 Canon Tristram on Birds from the 



3. Halcyon sancta, Vig. & Horsf. 

 Appears to be very common. 



4. Halcyon sviam, Reich, 



One specimen^ the most distinctly marked which I have 

 yet seen of this form, for I hesitate to assign specific value 

 to this bird. I have, however, never seen a bird more richly 

 coloured than this, which is evidently adult. The lores, fringe 

 of the collar, and the whole region behind the eye are dark 

 chestnut, with black ear-coverts, extending to tlie collar, 

 which is pale chestnut, as are the under wing- coverts, flanks, 

 abdomen, and under tail- coverts. 



5. Ceyx gentiana, sp. nov. (Plate XI.) 



C. rostro nigro; capite nigro, ultraraarino striate, macula inter 

 nares et oculos necnon macule postauriculari albis, dorso 

 medio et cauda azureo resplendentibus, utrinque ultra- 

 marine circumdatis ; alis ultramarino striatis, remigi- 

 bus atris : subtus tota alba. Long. tot. 5*8, rostr. 1-8, 

 alse 2'5, caud. 1*25, tars. 035, dig. med. 0"6, dig. post. 0'2. 

 This lovely little Kingfisher bears a slight resemblance in 

 the distribution of its colours to Alcyone jiusilla, but it is im- 

 possible to confound them. The three shades of brilliant 

 blue, the ultramarine spangles on the head and back of the 

 neck, and the spotless white of the whole under surface render 

 it one of the most chastely gorgeous of its family. It belongs 

 to the same group as Ceya; solitaria, Temm., hitherto the 

 only species known of black-billed Ceyx, but may be at once 

 distinguished by the pure white of its lower surface and its 

 considerably larger size. The iris is bluish black, and the 

 feet flesh-coloured. 



I have named it gentiana, as combining the colours of 

 three species of that plant. 



6. Dendrochelidon mystacea (Less.). 



7. CoLLOcALiA linchi, Horsf. & Moore. 



A single specimen, which I take to be of this species, is in 

 the collection. It agrees with the description, and is dis- 

 tinct from any of the aozen species before me ; but I have not 

 been able to compare it with a typical example of C. linchi. 



