<p>frolchlurche III. <br>
I. Tigerfrosch, Rana tigrina Daitd. <br>
^•2 nat. Gr., s. S. 311. - W. S. Berridge, F. Z. S.- London phot. <br>
2. Ochsenfrosch, Rana catesbj'ana Shaw. <br></p>
Va nat. Gr., 8.5.3(16. - Tlie Sctiolastic Photographic Co. -London phot.
Bibliographisches Institut Leipzig.; Brehm, Alfred Edmund; Heck, Ludwig; Hempelmann, Friedrich; Heymons, Richard; Marshall, William; Werner, Franz; Zur Strassen, Otto
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