138 



CHIROPTERA 



leaf and absence of tragus. Tlie skull differs from that of all 

 other members of the fauna in tlie short, globularly inflated 

 rostrum and long, projecting maxillaries, between which lie the 



M 



c ^ d 



Fig. 26. 



Noseleaf of Rh'uwloiihv>i ferrfim-eqninum (a), R. hipposideros (W)., R. euryale (c), 

 and R. blasii (d). JTat. size. 



horizontal free premaxillaries (often lost in prepared specimens). 

 About 100 forms have been described,* eight of which occur in 



Europe. 



KEY TO THE EUROPEAN FORMS OF RHINOLOPHUS. 



Noseleaf with connecting process broadly 

 rounded above ; skull with nasal sweUiugs 

 long, rising gradually above line of fore- 

 head. 

 Forearm over 50 mm. ; condylobasal length 

 of skull over 20 mm. ; sella pandurate ; 

 large upper premolar in contact with 



canine (Greater Horseshoe) B. ferrum-equimim, ]^. 139. 



Wing relatively long ; forearm 54-58 mm., 

 longest finger 84 to 92 mm. (Southern 



and central Continental Europe) H. f. ferrum-equinum, p. 142. 



Wing relatively shorter ; forearm 52 to 

 55 mm., longest finger 83 to 88 mm. 

 (England) R. f. insulanus, 'p. 147. 



* See Andersen, Ann. and Mag. Nat. Hist., 7th ser., xvi, pp. 618-662. 



