O. G. Dely szerk.: Vertebrata Hungarica 6/1-2. (Budapest, 1964)

Topál, Gy.: The subfossil Bats of the Vass Imre-Cave 109-120. o.

ments: right 7 ex.; left 12 ex. The material belongs to at least 24 specimens. Length of humerus 24,4 - 27,3 (H * 26) M= 26,0 mm. Width of distal portion of humerus (trochlear width) 1,12 - 1,32 (N = 27) M = 1,23 mm. Length of radius 41,5 - 43,9 (N » 20) M = 42,38 mm. Width of proximal articulating surface of radius 2,15-2,40 (N»19) M =2,23 mm. Length of proximal articulating surface of radius 1,95 - 2,20 (N » 18) M = 2,12 mm. Measurement readings of skulls and mandibles shown on Table 2. Myotis bechatelni is today a rare species in the Carpathian Basin, although it had been one of the commonest cave-dwelling bats during the whole glacial era, indeed, probably even after this period. The remains found during the past few years are still to be worked out. However, one might state even now that the evolution of the species had probably advanced toward the decrease in size as concerns the larger-sized and thus taxonomically more or leas distinguishable nearly related forms. The same as in the case of Myotis nattereri

, the majority of the means of the skull, mandible and tooth measurements somewhat exceeds the recent values. On the other hand, the cross-section length of the crown of the recent upper canines la slightly greater. The width of the recent is also greater (hence the crown of this tooth is obviously shorter). The mean of the crownlength of the lower canineB is also slightly greater in the recent material, despite the fact that I have found exceptionally large-sized specimens in this regard in the VASS IMRE - Cave material. TheBe strikingly greater sized animals from the Cave point back toward the glacial forms,hence this population can be satisfactorily relegated between the extinct and recent Myotis bechatelni populations.