260 



CHIKOPTERA 



does not extuiul outward to level of parastyle and nietastyle ; 

 Wpattern normal ; m-' with three cusps and three commissures, 

 its crown area about half that of m'-', its transverse diameter 

 through metacone about half length of anterior border. Lower 

 molars with no special peculiarities except that protoconids and 

 inner cusps are unusually high and slender ; ciugulum forming a 

 barely indicated postero-internal cusp behind entoconid ; second 

 triangle of riu much narrower than tirst, but about equal to it 

 in area. 



3Icnsurcmeiiis. — Adult female from Chelmsford, Essex, 

 England: head and body, 42; tail, 45; tibia, 17; foot, 9*6; 

 forearm, 39 ; thumb, 7 ; third hnger, 69 ; fifth finger, 52 ; 

 ear from meatus, .'56 ; width of ear, 23 ; tragus, 19. Two adult 

 males from Silos, Burgos, Spain: head and body, 50 and 51 ; 

 tail, 46 and 46 ; tibia, 18 and 17 ; foot, 8 and 8-4 ; forearm, 

 41 and 38; thumb, 7' 2 and 7 •4; third finger, 72 and 70; fifth 

 finger, 57 and 53 ; ear from meatus, 35 and 37 ; width of ear, 

 26 and 26 "4 ; tragus, 17 and 18. Adult female from La Granja, 

 S(•go^ ia, Spain : head and body, 45 ; tail, 44 ; tibia, 20 ; foot, 9 ; 

 forearm, 40 ; thumb, 9 ; third finger, 72 ; fifth finger, 53 ; ear 

 from meatus, 37 ' 4 ; width of ear, 23 ; tragus, 17 ■ 6. Adult female 

 from I'lorence, Italy : head and body, 49 ; tail, 48 ; tibia, 19" 2 ; 

 foot, 9; forearm, 39-4; thumb, 7-8; third finger, 69; fifth 

 finger, 54 ; ear from meatus, 34 ; width of ear, 23*4 ; tragus, 17. 

 For cranial measurements see Table, p. 262. 



Specimens examined. — Eighty, from the following localities : — 



Scotland : Montrose, Forfar, 4. 



Ireland : Antrim, 1 ; Co. Longford, 2. 



England: Alderley, Cheshire, 1; Bowdon, Cheshire, 1; Diss, Norfolk, 1; 

 Winfarthing, Norfolk, 1 ; Woburn Sands, Bedfordshire, 1 ; Pembrokeshire, 

 no exact locality, 1 ; Chelmsford, Essex, 1 (U.S.N.M.) ; Tring, Hertford- 

 shire, 1 ; Boxniore, Hertfordshire, 1 ; Hoddesdon, Hertfordshire, 1 ; 

 London, 4 ; Gtodalming, Surrey, 1 ; Surrey, no exact locality, 1 ; 

 Bonchurch, Isle of Wight, 1; near Honiton, Devonshire, 2 ; Devonshire, 

 no exact locality, 8 ; no exact locality, 1. 



Holland : Oosterlieek, Guelderlaud, 4. 



France : Near Barcelonnette, Basses- Alpes, 1 (Mottaz). 



Germany : Wernigerode, 3 ; Ummerstadt, Thiiringen, 2 ; Magdeburg, 2 ; 

 Niesky, Silesia, 4 ; Damsdorf , Silesia, 1. 



Austria-Hungary : Csallokoz-Somorja, Pressburg, 7. 



Switzerland : Geneva, 2 (Mottaz) ; Lausanne, Vaud, 1 (Mottaz) ; 

 Morat, Fribourg, 1 (Mottaz) ; Boudrv. Neuchatel, 2 (Mottaz) ; Teufen, 

 Appenzell, 1 (U.S.N.M.); Thurgau, St. Gallen, 1; St. Gothard, Uri, 3 

 (U.S.N.M.) ; no exact locality, 1. 



Italy: i3orzoli, near Genoa, 1 (Genoa); Florence, 1 (Mottaz) ; Kimini,!; 

 Rome, 1 ; no exact locality, 1 ; Sicily, 1. 



Spain : Silos, Burgos, 2 (U.S.N.M.) ; La Granja, Segovia, 1. 



IteniarJcs. — Plecotus auritus is so readily distinguished from all 

 other European bats by the great size of the ears that no sj^ecial 

 comparisons are required. 



6, 3 ?. Montrose, Scotland. J. H. Coward (c & p). 11. 1. 3. 48-51 

 6 St. Antrim, Ireland. Hon. N. C. Rothschild 1. 9. 3. 5. 



