THE ANNALS 



AND 



MAGAZINE OF NATURAL HISTORY. 



[SIXTH SERIES.] 

 No. 22. OCTOBER 1889. 



XXX. — On the Genera Nototherium a?ic/ Zjgomaturus, in 

 reply to Mr. Lydekker. 



Queensland Museum, Brisbane, 

 May 21, 1889. 



To the Editors of the Annals and Magazine of Natural 

 History. 



Gentlemen, — 



Permit me to ofter some observations on Mr. Lydekker's 

 view of Nototherium and Zygomaturus. 



For the behoof of those who may be interested in the dis- 

 pute I beg leave to place at your disposal a cast of the maxilla 

 twice referred to in my remarks *, and to be 



Yours most respectfully, 



C. W. DE Vis. 



In the skull to which it is proposed to restore Macleay's 

 name Zygomaturus are two premolars — the one on the right 

 side well preserved and complete though worn, the other, 

 taken by itself, in a condition less conducive to safe interpre- 

 tation. Mr. Lydekker, in his late attempt to set aside my 

 reasons for separating Zygomaturus from Nototherium^ 



* [The cast has been presented to the Geological Department of the 

 British Museum (Natural History). — Eds.] 



Ann. & Mag. N. Hist. Ser. 6. Vol. iv. 18 



