PLATE XXXII. 
Bicell aria. — Flustra. — Calymmophora. — Caberea. 
Figure 1 . — Bicellaria macilenta, ...... 
la, natural size; lb, magnified; 1 c, more highly magnified; 
Id, back view. 
„ 2 . — Flustra denticulata, ....... 
2a, natural size ; 2b, magnified. 
„ 3 . — Calymmophora lucida, ...... 
3a, natural size; 3b, 3c, magnified; 3d, 3e, ooecia; 3 /, 3 g, 3 h, orifice 
with oral valve. 
„ 4 . — Caberea rostrata, . . 
4a, natural size ; 4 b, with ooecia, magnified ; 4c, a single zooecium ; 
Id, large rostriform avicularium. 
„ 5 . — Caberea minima, ....... 
5 a, natural size ; 5b, 5c, magnified ; 5 d, peduncular spine, 
magnified. 
„ 6 . — Caberea darwinii, ....... 
6a, natural size; 6b, 6c, magnified; 6d, 6e, more highly magnified; 
6f, ooecium. 
„ 7 . — Flustra membraniporides, ...... 
7a, natural size ; 7b, magnified. 
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