619 



Ameghino, P., Enumeration synoptique des especes de Mammiferes fossiles 

 des formations Eocenes de Patagonie. Buenos Aires. 8°. 196 pp. 66 fig. 



Andrews, Chas W., On some Remains of Aepyornis in the British Mu- 

 seum. Pr. Zoolog. Soc. of London for 1894, Pt. 1 p. 108—123. 



Grandidier et Filhol, Observations relatives eux ossements d'hippopotames 

 trouves dans le marais d'Ambolisatra ä Madagascar. (Suite.) Ann. sc. 

 natur. zool., Anne*e 59, S. 7 T. 11 N. 4/6 p. 177 — 190. 1 pi. 



Grönberg, G., Beiträge zur Kenntnis der polydaktylen Hühnerrassen. 

 (S. Cap. 6a.) 



Last, J. T., On the Bones of the Aepyornis and on the Localities and 

 Conditions in which they are found. Pr. Zoolog. Soc. London for 1894, 

 Pt. 1 p. 123—130. 



Marsh, 0. C, Restoration of Camptosaurus. 1 PI. The Geolog. Magaz. 

 N. 359, N. S. Decade 4 V. 1 N. 5 p. 193—195. (Vgl. A. A., B. 9 

 N. 15 p. 467.) 



— — Restoration of Elotherium. 1 PI. The Americ. J. Sc. May, S. 3 

 V. 47, Whole N. 147 (N. 281) p. 407—408. 



— — A new miocene Mammal. 3 Fig. Ibidem p. 409. 

 Woodward, A. Smith, On a second British Species of the Jurassic Fish 



Eurycormus. The Geolog. Magaz., N. 359, N. S. Decade 4 V. 1 N. 5 

 p. 214—216. 



Aufsätze. 



Nachdruck verboten. 



On the Milk Dentition of the Rodentia with a Description of a 

 Testigial Milk Incisor in the Mouse (Mus musculus). 



By M. F. Woodwaed, 



Demonstrator of Zoology, Royal College of Science, London. 



With 3 Figures. 



The representatives of the incisors and premolars of the first or 



milk dentition attain but a very slight development in the Rodentia. 



This is due to a process of reduction consequent upon the enormously 



enlarged development of the corresponding teeth in the adult set. 



The tooth change is generally thought to be restricted to the 

 Duplicidentata and to the Squirrel and Guinea Pig amongst the Sim- 

 plicidentata. 



I here record the occurrence of vestigies of an early set of teeth 

 (? milk teeth) for another form of the latter group viz: — the com- 

 mon Mouse (Mus musculus). 



41* 



