234 On a new Species of Hawk- Oivl. 



Nino X fuse a (V.), from Timor^ which species Mr. Riedel, 

 the Avell-known resident and explorer of the jNIalay archi- 

 pelago, also procured on Sumba. It is barred with smaller 

 longitudinal but transverse bars on the under surface, and is 

 without white spots on the head. Cf. Sharpe, Cat. ii. 1875, 

 pi. xii. fig. 1. 



Ninox florensis (Wall.), from Flores, which Mr. Sharpe 

 identifies with Ninox scutulata (Raffl.), loc. cit. pp. 157, 165. 

 This species has no spots on the head, and only five cross bars 

 on the tail. 



Ninox punctulata (Q. & G.), from Celebes, reminds one 

 somewhat of Ninox riidolfi as regards its spotted upper sur- 

 face; but, besides other characters, is much smaller; the 

 wings, for instance, measuring only 160 millimetres in speci- 

 mens collected by myself near Gorontalo, against 243 milli- 

 metres in N. riidolfi. 



This new species would require a special division in Mr. 

 Sharpens "Key ^' (loc. cit. p. 152), which runs as follows : — 



c. Breast spotted or transversally barred, 

 e'. Head spotted or barred. 



e". Size large, wing 10'o-18'5 inclies. 



/". Size smaller, wiugs uot exceeding 8"5 inches in length. 



The length of the wiugs in N. rudolji is 9"5 inches ; it 

 therefore ranges between the divisions e" and /", and seems to 

 be rather isolated among the various known species of the 

 genus Ninox — a view shared by my friend Mr. Sharpe, who 

 has kindly inspected one of the specimens, the types of which 

 are now preserved in the Dresden Zoological Museum. 



I have great pleasure in naming this new species Ninox 

 rudolfi, in honour of the illustrious patron of ornithology. 

 His Imperial & Royal Highness Archduke Rudolph, CroMn 

 Prince of Austria, as a slight token of respect for his personal 

 virtues and scientific attainments. 



Dresden, December 1881, 



