PLATE XII^ 



Mellita testudinata, /. 1, 2. 



1. Seen from abactinal side, nat. size. 



2. Seen from actinal side, nat. size. 



Encope Micheliui, / 3, 4. 



3. Seen from above, f nat. size. 



4. Seen from actinal side, to show the ramifications of the water system, § nat. size. 



