232 Dr. A. B. Meyer on a new 



PODICEPS MINOR. 



The Little Grebe is found breeding, but is rare. 



COLYMBUS SEPTENTRIONALIS. 



Henke once obtained an example of the Red-throated Diver 

 in autumn. 



CoLYMBUS ARCTICU&. 



The Black-throated Diver is a very rare winter visitor. 



XVII. — On Ninox rudolfi, a new Species of Hawk-Owl from 

 the Malay Archipelago. By A. B. Meyer, M.D., F.M.B.O.U. 



(Plate VI.) 



Ninox rudolfi. 

 Supra griseo-brunnea, albo variegata ; capite et nucha nigres- 

 centihus velfusco-brunneis, maculis velfasciis albis ornatis; 

 fronte, loris, superciliis, facie anteriore, mento, gula et 

 collo antico albis, plumarum pilosarum rhachibus 

 nigris, plumis suborbitalibus et auriculavibus fusco-brun- 

 neis ; pectorc, abdomine et subcaudalibus rufescenti et 

 albo fasciatis, fasciis rufescentibus auguste nigricanti vel 

 fusco marginatis ; subalaribus rufescentibus, striis trans- 

 versis plus minusve fulvescentibus ; alis dorso conco- 

 loribus ; remigibus supra et subtus fasciis pallidioribus, 

 albidis et albis notatis ; cauda supra remigibus et dorso 

 concolori, subtus pallidiore, rectricibus fasciis 9-11 trans- 

 versis pallidioribus et albidis ornatis ; tibiis et tarsis totis 

 plumosis, rufescentibus, striis obscurioribus et pallidi- 

 oribus parum conspicuis ; rostro nigro, culmine flaves- 

 cente ; digitis pallidis setosis. 

 Long. tot. circa 350 mm., al. 243, caud. 145, rostr. hiat. 

 circa 30, tars, circa 40. 



Hah. Ins. Sumba {Riedel coll.). 



Above greyish brown, spotted or streaked with white, 

 darker from the hind neck to the head, which is blackish ; 

 each feather of the head bears two white spots or streaks ; 

 most of the feathers of the hind neck and mantle with a 

 white coherent spot on their apical third, and another one or 

 two, not coherent, subterminal ones ; on the middle of some 

 of the feathers, besides, a third lengthened white spot. On 



