TWO VARIETIES OF RANA ARVALIS. 
Í8l 
viduals ; a contradictory observation being thus contained in his following 
statement: «Dabei bemerkte ich, dass die Thiere eine ganz gewaltige Spring- 
fertigkeit besassen, die an die von Bana agilis erinnerte, so dass namentlich 
erwachsene Exemplare, die grösser sind als die norddeutschen, schwer 
zu erbeuten waren». Considering this latter enunciation I should think, 
with regard to the presence of var, Wolter storffi in the Western parts of 
Hungary, to be able to conclude to its occurrence in Austria also ; 
the Neudorf near Basel (Switzerland) specimen, the measurements of 
which are contained in Mr. Boulenger’s «Tailless Batr.» (p. 292), seems 
in some respect to be rather different from other typical specimens 
of B. arvalis, not being able however to examine a larger material, I have 
no reason to emit any opinion on the systematical position of the Swiss 
individuals of our species. The Northern confines of the var. Wolter» 
storffi’s geographical distribution remain also to be established, but I do 
not think I could fail much in supposing that these confines are to be 
searched for in the vicinity of the Carpathian Mountains. 
Regarding the osteology and phylogenetical connexion of var. Wol¬ 
ter storffi, — and Bana arvalis Nilss. in general — exhaustive data shall 
be offered in a future Monography of mine. At present I should like but to 
observe that, concerning the o u t e r-m orphological markings, 
var. Wolterstorffi approaches the Asiatic Bana macrocnemis Blgr., differing 
nevertheless from it by its colour-dress ; Bana Gameranoi Blgr. also bears 
some analogies to the variety here described, the phylogenetical and syste¬ 
matical value of these differences could however only be established by 
more detailed studies, so'that in this case also I am obliged to refer to my 
Monography above quoted. — Finally I must yet mention the interesting 
historical fact of var. Wolterstorffi being described from Agram (Croatia) 
by Dr. Wolterstorff (op. cifc.) under the name of Bana agilis, for which 
he mistook it, prooving by this the striking difference in the habit by 
which this variety differs from the typical B. arvalis Nilss., certainly 
well known by Wolterstorff from various localities of Germany. 
Rana arvalis Nilss. var. asiatica de Bedr. 
Bana temporaria var. asiatica , Bedriaga, Wiss. Result, d. v. Przewalski 
n. Central- Asien untemomm. Reisen, Zool. Theil, Bd. Ill, Abth. 1, Amph. u. Rept., 
Lief. 1, St. Petersburg, 1898, p. 23, Taf. I, Fig. 4, 4a, 4&. 
Rana arvalis (non Nilss.), Méhely, Zool. Ergeb. d. dritten Asiat. For- 
schungsr. d. Grafen E. Zichy, Rept. u. Amph., Budapest & Leipzig, 1901, p. 66. 
Bedriaga described this interesting form under the name of B. iem - 
foravia var. asiatica from Mongolia, the Tie n-S ha n, and Tur* 
