Ber. d. Natmf.Ges. Frabnrg i.B. Bd. IL 



Taf.Y. 



Erluzrd Fgbnaim del. 



LitkJitstrMfViz,fri£mi0s ,Finbvr^ '/£ 



Akad. Verlag T. J.C.B.MöhrfPanl Sübeck.) Fr.-ihim 7.S. 



