<p>4. Grasfrofch, Rana temporaria L. <br>
i/s nat. Gr., s. S. 297. — A.Mayer-Wien phot. <br>
5. Secfroich, Rana ridibunda Pall. <br></p>
^'■i nat. Gr., s. S. 295. — A. Cerny- Wien pliot.
Bibliographisches Institut Leipzig.; Brehm, Alfred Edmund; Heck, Ludwig; Hempelmann, Friedrich; Heymons, Richard; Marshall, William; Werner, Franz; Zur Strassen, Otto
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