130 Mr. R. Swinhoe on the Ornithology of Amoy (China). 



Sept. 1857). Two eggs containing mature embryons, which 

 cannot be referred to any other species, were found under a 

 bush. One of the specimens, procured for my collection, shows 

 that the eggs are as closely allied to those of the preceding 

 species as the birds themselves are to each other. It is 24 lines 

 long and 13 lines broad; it has a darker and browner ground- 

 colour, the grey and brown markings, and, besides, it is lineolated 

 with blackish on the broad extremity. The grain equals that of 

 the eggs of Larus hemprichii, but appears to be rather more 

 strongly developed. 



XIV. — Additions and Corrections to the "Ornithology of Amoy." 

 By Robert Swinhoe, of H.M. Consular Service. 



Mr. G. Schlegel of Amoy (son of the renowned Dr. Schlegel 

 of the Leyden Muse\im) having kindly lent me a copy of the 

 ' Fauna Japonica,^ I am enabled to make the following addi- 

 tions and corrections to my article on the " Ornithology of 

 Amoy," published in the last number of * The Ibis.^ 



Caprimulgi, sp. 13 and 14. 



The first of these, I find, is akin to C. jotaka of the ' Fauna 

 Japonica.^ The most striking points of difference are as fol- 

 lows : — In three individuals of our species the wing is half an 

 inch and the beak 2 lines longer. Instead of the second, 

 third, and fourth quills in the male having a white band, ours 

 has a white spot on the inner web of the fii'st and a band across 

 the second and third primaries only. The sides of the head, the 

 greater and lesser wing-coverts, and the scapulars are fronted 

 with white ; and a narrow line of pure white runs from the bill 

 to the top of the eye and extends in a broken manner beyond ; 

 but in most other respects our bird resembles C. jotaka, — the tail 

 being banded with w^hite, pretty much in the same style, and 

 the tarsus feathered down to the base of the toes. I have 

 named it for the present C. dytiscivorus, from its habit of feed- 

 ing on Dytiscidae, to which family belong several large insects 

 taken out of the stomach of specimens which I have shot. 



