EXPLANATION OF PLATES 



Figures on the following plates, which are not new, are credited to the author 

 from whom they are taken, but such figures are not always copies ; they are some- 

 times reduced in size and the shading is often modified; occasionally details are 

 changed to make the figure more representative of the species which it illustrates. 

 Where the magnification of the original figure was not given, it has been esti- 

 mated as nearly as possible from the data available, but a question-mark indicates 

 the uncertainty. 



PLATE I. (See frontispiece, facing page 11.) 

 Synapta maculata (Chamisso and Eysenhardt). 



Figure 1. Anterior end of adult, with verrucae, natural size. (From Semper, 1868.) 

 2. Anterior end of adult, without verrucse, natural size. 



PLATE II. (See page 42.) 



Figure 1. Anapia gracilis Semper. 



2. Protankyra similis (Semper). 



3. Chiridota rigida Semper. 



All natural size and from Semper, 1868. 



PLATE III. (See page 135.) 



Aphclodactyla molpadioides (Semper). 



Adult, natural size. (From Semper, 1868.) 



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