Szekessy Vilmos (szerk.): A Magyar Természettudományi Múzeum évkönyve 55. (Budapest 1963)

Topál, Gy.: The bats of a Lower Pleistocene site from Mt. Kövesvárad near Répáshuta, Hungary

the bats of a lower pleistoncexe site from mt. kövesváb

ad 149 also the canine, of the upper row can also be smaller than the recent ones, while M

2 is already characteristically wider. Only the concurrent and thorough study of the fossil representatives of the emarginatus group (including also the examination of M. gundersheimwisis) will decide the allocation of the Répáshuta material. It seems probable that the specific state of AI. gundersheimensis will also become questionable. Myotis cf. baranensis KORMOS Right maxillary fragment with P

3

—P

4, separate upper C, M

2 2 ex., fragmentary M-; talons of left M

1, M

2; M

2. Distal portion of right humerus, proximal portion of radius, distal portion of radius, femur, proximal portion of tibia; distal portion of left humerus, proximal portion of tibia; clavicula fragment, 2 exemplars. The 22 remains represent at least 4 specimens. Length of M

1 2,0 mm, width of M

1 1,96 mm, length of M

2 1,60—1,86 mm, width of M

2 2,20—2,42 mm, trochlear width of humeri 3,40—3,64 mm. On the basis of the construction of the molars, as well as their sizes, one can safely relegate the findings to the subgenus Myotis. Namely, the teeth lack protoconuli, and there are no traces of a commissure directed from the paracone toward the protocone (fig. 10). Similarly, not even a vestigial commissure connects the bases of the hypocone and the metacone. P

3 is small and pressed inward from the row, but P

2, as shown by its alveolus, is within the row proper.. The shortness of the talon of P

4 and the complete absence of the anterio-interior supplementary conule excludes M. dasycneme, despite even the highly similar dimensions. The measurements of the molars found do not agree with any known recent species. They can be connected only with M. baranensis KORMOS

, found in Reremend, Villány, and Püspökfördő. Comparison with this taxon was made more difficult by the circumstance that the rostrum or the maxillary dentition of this species is unknown as yet. It is to be noted that the specimens of the rich Püspökfürdő material, identified by KORMOS as M. baranensis and now in the collection of the Hungarian State Institute of Geology, have the size of M. oxygnathus, hence I could not use them in my study. For comparison purposes, I had at my disposal only the type mandible of the fossil species and its original description (

KORMOS, 5, p.

11—12). By setting up the ratios of the measurements of its toothrow (C—M

3) with the same measurements of ten M. oxygnathus, and with the dimensions of the upper teeth of the corresponding animal, 1 received the following values: length of M

1 2,04 mm, width of M

1 2,16 mm, length of M

2 2,04 mm, width of Al

2 2,56 mm. As is to be seen, there is a discrepancy between the measurements of the available teeth and the computed values. With relation to the closely similar length of M

1, the fossil tooth is very narrow, and, in complete contrast with the computed value, it is narrower than long. And albeit the ratios of length and width of M

2 agree, both are smaller than the computed value, caused manifestly by this tooth being considerably smaller as related to that of M. oxygnathus. Nor are the bones of the extremities of M. baranensis known up to the present date. The two humeri identified as M. baranensis in the collection of the Institute of Geology belong indubitably to M. dasycneme. The distal fragments of humeri cited above had to be compared with the bones of the upper linbs of M. dasycneme and M. oxygnathus, since their measurements fall between these limits. At a cursory glance, they seem to conform with those of M. dasycneme

y since they have nearly corresponding sizes. I had occasion to compare them not