ERRATA. 
Page 58, line 7 from the top for de read die, and for eigentumliche read 
eigentiimliche. 
Line 27 from the bottom, for extreme read extremen. 
Page 61, line 17 from the bottom, for terminales read terminalis. 
Page 62, line 13 from the top, for terminales read terminalis. 
Line 16 from the bottom, for L6viell6 read Leveilld. 
Page 225, line 4 from the bottom, for junghunnii read junghuhnii. 
Plate I, legend, for variable read variabile. 
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