Plate XVII. 



1. ^tea anguina, nat, size. 1a, Enlarged, p. 212. 



2. Eucratea chelata, enlarged, p. 215. 



3. Gemellaria lox'icata, nat. size. 3a, Enlarged, p. 217, 



4. Menipea ternata, nat. size. 4a, Enlarged, p. 220. 



5. Scrupocellaria reptans, nat. size. 5a, Enlarged, p. 



223. 



6. Bicellaria ciliata, nat. size. 6a, Enlarged (after 



Hincks), p. 226. 



