252 On two neio PMUjopine- Island Birds. 



the number of species, and to determine the existence of some 

 others. The three genera are severally constituted in species 

 as follows : — 



Trimerella grandis, Billings. 



acumiuata, Billings. 



Lindstiomi, Dall. 



Billing'sii, Dall. 



ohioensis, Meek. 



Dalli, Dav. 8f King. 



wisbjensis, Dav. >i!- King. 



Dinobolus Conradi, Hall. 

 canadensis, Billings. 



Dinobolus galteusis, Billings. 



Davidsoni, Salter. 



transversus. Salter. 



Woodwardi, Salter. 



magnifica, Billings. 



Monomerella AVahnstedti, Dav. ^• 

 King. 



prisca, Billings. 



orbicularis, Billings. 



With one or two exceptions, all the species will be fully 

 illustrated in five lithographic plates in our forthcoming 

 memoir ; in addition to which there will be two woodcut 

 plates of diagram figures explaining the various parts briefly 

 noticed on the present occasion, and another showing the 

 relationsliip of Lingula to the family. 



XXXVIII. — On two new Species of Birds from the Philippine 

 Islands. By Arthur Viscount Walden, P.Z.S., F.R.S. 



Hyloterpe iDhilijypinensis^ n. sp. 



Feathers of the chin, cheeks, throat, and upper breast silky 

 white, edged more or less with cinereous, a dingy sordid aspect 

 being thus given to these parts ; an indistinct obscure zone 

 crossing the breast and bordering the upper breast-plumage, 

 consisting of feathers which are dark ashy at their base, then 

 pure white, tipped with dirty yellow ; the remainder of the 

 under plumage with the flanks and under tail-coverts sul})hur- 

 yellow, each feather, however, being iron-grey at the base 

 and then white ; entire head dark smoke-brown, lighter on 

 the ear-coverts ; remainder of upper plumage olive green, 

 rather darker on the outer edges of the quills and on the 

 rectrices ; under carpals and axillaries pale lemon- white ; tail 

 slightly forked ; bill horn -brown. 



From an example obtained in Luzon by Dr. B. Meyer and 

 labelled a "male." 



Orfhotomus castaneiceps^ n. sp. 



Entire head, lores, streak under the eyes, and the ear-coverts 

 chestnut ; nape and interscapulary region dark ashy, with 



