ORDER CHIROPTERA. 1461 



Family Rhinolophid.e. — In the existing genera of this family 



II 2 7, 



the dental formula never exceeds I. -, C. -, Pm. -, M. -, and the 



21 3 3 



nose carries a peculiar leaf-like expansion. The type genus Rhin- 



olophus, in which the dental formula is as above, is represented in 



the cave-deposits of Europe by remains of existing species. Two 



Bats, from the Upper Eocene Phosphorites of France, have been 



referred to this genus under the names of R. dubius and R. a?ztiquus, 



but the latter species is regarded by some authorities as entitled to 



generic distinction, and the term Pseadorhinolophus has accordingly 



been proposed for its reception. A/astor, from the same deposits, 



is an extinct genus characterised by the extreme shortness of the 



nasal region and other features of the skull. Palceonycteris, from 



the Lower Miocene of France, is stated to be allied to Rhinolophus, 



but the premolars are -, and the limb-bones are said to resemble 



those of the South American Molossus. Phyllorhina, in which the 



(1-2) 

 premolars are , is represented by the living oriental P. diadema 



in the Pleistocene cave-deposits of Madras, and perhaps by a species 



in the Quercy Phosphorites. 



Family VESPERTiLiONiDiE. — In the Vespertilio?iidce the nose does 



not carry a distinct follicular appendage, the number of incisors is 



(1-2) 

 usually , and in some genera there are three premolars in each 



jaw. Of Pkcotus, the existing P. auritus occurs in the cavern- 



2 

 deposits of Europe. Vesperugo, with incisors usually -, and pre- 



molars - } is perhaps represented in the Upper Eocene of the Paris 



2 



basin by the well-known V. parisiensis, which appears closely allied 

 to the existing V. serotina, although generically separated by some 

 writers under the name of Nyctitherium. This genus has also been 

 described from the Eocene of North America, where it is repre- 

 sented by several species, ranging as low down as the Bridger 

 horizon, some of which have been described under the name of 

 Nyctitherium. Nyctilestes serotinus, from the same deposits, is the 

 type of an allied genus. Remains of the existing V. noctula (fig. 

 1345) occur in the English Pleistocene. In the type genus Vesper- 



21 7. 7. 



tilio the dental formula is I. -, C. -, Pm. -, M. -. The existing 



3i33 

 V. murinus occurs in the cave-deposits of France, and a considerable 

 number of species have been referred to this genus from the Middle 

 Tertiaries of the Continent, but the generic reference must be con- 



