MYOTIS 181 



Upper incisors essentially as in M. mystacinus but more slender. 

 Lower incisors slightly imbricated, the row as a whole (J -shaped 

 or very broadly V-shaped, the form of the individual teeth not 

 peculiar. Canines with no special peculiarities. Small upper 

 premolars completely in tooth-row, not crowded, the crown area of 

 first equal to about half that of canine, that of second to about 

 two-thirds that of first, the height of first a little less than half 

 that of canine, that of second about two-thirds that of first ; 

 cingulum complete but not forming secondary cusps. Large 

 upper premolar with crown area nearly three-quarters that of 

 first molar, its antero-internal cusp well developed. Lower 

 premolars essentially as in M. nattereri. Upper molars with no 

 special peculiarities except that m 3 is more reduced than in the 

 other small species, its tranverse diameter through metacone 

 noticeably less than half length of anterior border. Lower 

 molars normal, but second triangle of m 3 a little more reduced 

 than in the other small species, though much less so than in 

 M. myotis and M. oxygnathus. 



Measurements. — Adult female from Sweden : head and body, 

 46 ; tail, 38 ; tibia, 19 • 6 ; foot, 9 • 8 ; forearm, 42 ; thumb, 9 • 6 ; 

 third finger, 67 ; fifth finger, 56 ; ear from meatus, 22 ; ear 

 from crown, 19; width of ear, 13 - 6; tragus, 10. Two adults 

 from the New Forest, Hampshire, England : tibia, 18-8 and 20 ; 

 foot, 9 • 8 and 10 • 6 ; forearm, 39 and 42 ■ 4 ; thumb, 8 • 4 and 10 ; 

 third finger, 64 and 68 ; fifth finger, 53 and 57. Adult male 

 from Lugano, Switzerland (Geneva : type of ghidinii Fatio) : 

 tibia, 19-4; foot, 10; forearm, 41 - 2; thumb, 10- 4; third 

 finger, 65; fifth finger, 53; ear from meatus, 21 ±; ear from 

 crown, 19; width of ear, 13; tragus, 11±. Adult female from 

 Ste. Baume, Var, France : head and body, 53 ; tail, 37 • 4 ; tibia, 

 20; foot, 10-4; forearm, 42- 6; thumb, 9; third finger, 70; 

 fifth finger, 57 ; ear from meatus, 25' 6 ; ear from crown, 24; 

 width of ear, 16' 2; tragus, 11" 8. Adult male from Cadillac, 

 Gironde, France : head and body, 45-)- ; tail, 42 ; tibia, 20 ; 

 foot, 9 ; forearm, 41 ; thumb, 8 ■ 8 ; third finger, 67 ; fifth 

 finger, 56; ear from meatus, 26; width of ear, 15 • 6. Adult 

 male from La Granja, Segovia, Spain (type of favonicus Thomas) : 

 head and body, 48 ; tail, 38 • tibia, 20 ; foot, 8 • 4 ; forearm, 40 ; 

 thumb, 8 • 2 ; third finger, 66 ; fifth finger, 55 ; ear from meatus, 

 23; ear from crown, 19; width of ear, 14-6; tragus, 10-4. 

 Adult female from Zay-Ugrocz, Hungary : head and body, 46 • 6 ; 

 tail, 44 ; tibia, 22 ; foot, 9 ; forearm, 44 ; thumb, 9 ; third 

 finger, 73 ; fifth finger, 59 ; ear from meatus, 25 ; ear from 

 crown, 22-6; width of ear, 16; tragus, 11 8. For cranial 

 measurements see Table, p. 183. 



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

 England : Henley-on-Thames, Oxfordshire, 1 ; New Forest, Hamp- 

 shire, 6. 



Sweden: Skane, 1 (U.S.N.M.). 



