of the liead region of the Axolotl [Aonhly stoma tigrinum). The 

 head of the Axolotl contained three segments behind the auditory 

 capsule. Three metaotic somites were developed in these 

 segments, of which the first soon disappeared, and the second and 

 third contributed to the formation of the temporal muscle. To 

 the first segment belonged the glossopharyngeal nerve ; to the 

 next two the vagus. The occipital condyles were developed 

 betweea the third and fourth somites. The two hypoglossal 

 roots corresponded to the fourth and fifth metaotic segments, and 

 passed out in front of the first and second vertebi'se. In the 

 Amniota all these segments were included in the head. The 

 skull of an Amphibian was thus shorter than that of a Mammal, 

 yet the condyles were homologous in the two animals. The 

 shifting backwards or forwards of , the condyles was brought 

 ahout, not by the inter- or excalation of segments, but by a 

 transposition from one segment to another. The sliifting of the 

 condyles was comparable to the transposition of the limbs on the 

 trunk-segments. 



Mr. Oldfield Thomas, F.K.S., F.Z.S., read a paper entitled 

 " The Mammals of the Tenth Edition of Linnsexis : an Attempt 

 to fix the Types of the Genera and the exact Bases and Localities 

 of the Species." It was shown that by the use of tautonymy the 

 types of nearly all the Linnean genera could be definitely fixed, 

 the conclusions arrived at by this means agreeing in most cases 

 with common usage. The type of Simia, however, would not be 

 ,S. fsatyrus but S. sylvana, and of Dasyjnis D. novemcinctus instead 

 of D. sexclnct'us, the consequences of which changes were pointed 

 out. 



Fygafhrix, as represented by the two species nemceus and 

 nigripes, was shown to be generically distinct from Fresbytis, so 

 that the latter name still remained available for the ordinary 

 Langurs. 



Changes in specific names, due to a complete examination, 

 were shown to be less numerous than might have been expected, 

 while the stability of mammalian nomenclature was much 

 increased by avoiding the danger of what such an examination 

 might lead to. 



Type localities, derived from the original authors quoted by 

 Linnseus, were defined for a considerable number of the species. 



Dr.W. E. HoYLE, M.A., F.Z.S., English Member of the Inter- 

 national Commission on Zoological ISTomenclature, explained the 

 following Report presented to the Graz Meeting of the Inter- 

 national Zoological Congress, and referied in particular to the 

 proposals made for the protection of well-known zoological 

 names. 



A discussion followed on the portion relating to the formation 

 of an Oflicial List of most frequently used Zoological Names. The 

 feeling of the Meeting was very strongly in favour of the Inter- 



