THE ANNALS Am> MAGAZINE OF NATUEAL HISTOEY. [SIXTH SERIES.] No. 22. OCTOBER 1889. XXX. — On the Genera Nototherium and Zjgomaturus, in repli/ to Mr. Lydekker. Queensland Museum, Brisbane, May 21, 1889. To the Editors of the Annals and Magazine of Natural History. Gentlemen, — Permit me to offer 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
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