266 



CHIROPTERA 



space between it and cingulum of canine is very narrow ; lower 

 incisors forming a less broadly U-shaped row. Canines as in 

 P. auritus. Anterior upper premolar very minute, crowded 

 inward completely from tooth-row, the diameter of its crown 

 barely one-quarter that of outer incisor, its cusp and cingulum 

 distinct ; large upper premolar much as in P. auritus but less 

 narrowed on inner side and with a narrow concave crushing 

 surface ; no antero-internal basal cusp. Lower premolars almost 

 exactly similar to middle and posterior lower premolar of Plecotus 

 auritus, but crown area of larger tooth slightly exceeding that of 

 canine. Molars not appreciably different from those of Plecotus 

 auritus except that they are smaller and the concave median 

 region of the upper teeth is larger relatively to area of crowns. 



Measurements. — Adult male from Cheshire, England : head 

 and body, 48; tail, 49; tibia, 19; foot, 7-2; forearm, 38-4; 

 thumb, 6 ; third finger, 69 ; fifth finger, 52 ; ear from meatus, 

 15 ; width of ear, 14. Adult female from Epping, Essex, 

 England : head and body, 49 • 6 ; tail, 46 ; tibia, 18' 2 ; foot, 7 ; 

 forearm, 36; thumb, 5-8; third finger, 69 ; fifth finger, 51 ; ear 

 from meatus, 16 ; width of ear, 14. Average and extremes of 

 five adults from Damsdorf, Silesia, Germany : head and body, 

 50 (47-52); tail, 47-1 (45-49); tibia, 18-5 (18-19); foot, 6-6 

 (6-7); forearm, 38 (37-4-39); thumb, 5-8 (5-4-6-2); third 

 finger, 70 (68-72) ; fifth finger, 52-6 (51-54) ; ear from meatus, 

 15-5 (15-16); width of ear, 14-1 (13-6-15). For cranial 

 measurements see Table opposite. 



Specimens examined. — Sixty-one, from the following localities : — 



England : Elton, Huntingdonshire, 1 ; Ellingham, Norfolk, 1 ; Arrow 

 Lodge, Warwickshire, 1 ; Alcester, Warwickshire, 1 ; Rugby, Warwick- 

 shire, 1; Welford, Rugby, 1 ; Pilton, Oundle, Northamptonshire, 1; Epping, 

 Essex, 1 ; Llanelwedd, Radnorshire, 1 ; Swindon, Wiltshire, 1 ; Milton, 

 Hampshire, 1. 



France : Caterille, Haute-Garonne, 1, 



Germany : Biichenberg, Harz Mountains, 1 ; Niesky, Silesia, 4 ; 

 Bavaria, no exact locality, 3 (U.S.N.M.) ; near Wernigerode, Saxony, 1. 



Switzerland : Grotte de Vallorbe, Vaud, 40 (Mottaz). 



Remarks. — This species is immediately recognizable among 

 European bats by its short, joined ears, and by the peculiar form 

 of the muzzle. 



9. Llanelwedd, Radnorshire, H. E. Forrest (c & p). 4. 7. 3. 1. 



Wales. 



9. Elton, Huntingdonshire, Lord Lilford (p). 94. 9. 5. 1. 



England. 



6. Ellingham, Norfolk. E. R. Alston (p). 81. 6. 9. 1. 



(Dr. W. M. Crowfoot.) 



S. Arrow Lodge, Warwickshire. Tomes Collection. 7.1.1.348. 



1. Alcester, Warwickshire. Tomes Collection. 7. 1. 1. 348. 



(5 st. Rugby, Warwickshire. G. Dalgleish (c & p). 4. 10. 13. 2. 



S. Oundle, Northamptonshire. Lord Lilford (c & p). 94. 4. 16. 1. 



9 al. Epping, Essex. H. Doubleday (o & p). 44. 5. 1. 1. 



<5. Milton, Hampshire. Rev. J". E. Eelsall (p). 11. 1. 3. 59. 



