THE IBIS. 



NEW SERIES. 



No. XV. JULY 1868. 



XXI. — Notes on Mr. LayarcFs 'Birds of South Africa' 

 By J. H. GuRNEY, F.Z.S. 



(Plate VIII.) 

 [Concluded from p. 164.] 



NuMiDA coRONATA, G. R. Gray. Crowned Guinea-fowl. 



In 1844 Mr. G. R. Gray (List B. Br. Mus. iii. p. 29) gave 

 this name to a South-African Guinea-fowl, which differs from 

 the true Numida mitrata (No. 519 of Mr. Layard^s catalogue) 

 in the markings of the neck and wings, and more conspicuously 

 in the shape of the casque, which is broad throughout instead 

 of being narrowed to a point at the upper end as in N. mitrata. 

 Mr. Layard does not include iV. coronata in his catalogue; but 

 Mr. Gray has recently informed me that a further comparison 

 of specimens has confirmed his view as to its specific distinct- 

 ness, and I have recently received an example of it from Natal*. 



539. Struthio australis, nob. Southern Ostrich. 



Mr. Layard, in his notice of the South-African Ostrich, re- 

 marks that it " is now recognized as distinct from the North- 

 African bird, to which probably the name of ' camelus ' was 

 originally given." The name Struthio camelus was given by 



* [This species is not recognized by Mr. Sclater in his list of the genus 

 (P. Z. S. 18G3, pp. 125, 126), and does not appear to have been described. 

 —Ed.] 



N. S. VOL. IV. T 



