Plate 6. 



Corynotrypa schucherti Bassler. 



Fig. 1. The type-specimen, X3, incrusting a species of Streptelasma. 

 Wesenberg limestone (E), Wesenberg, Esthonia. 



Ceramopora intercellata, new species. 



2. Surface of the type example, X18, showing portion of a macula of mesopores 

 and the adjoining zooecia. 

 Lyckholm limestone (Fl), Hohenholm, island of Dago. 



Ceramopora invenusta, new species. 



'3. Surface of the type, X9, partially obscured by clay, exhibiting the irregular 

 zooecia and numerous granules. 

 Wesenberg limestone (E), Wesenberg, Esthonia. 



Anolotichia revalensis, new species. 



4. Celluliferous side of a thin, flat expansion, X1.5, with groups of larger zooecia 



indistinctly shown. 



5. Surface of the same example, X9, showing the angular zooecia, few meso- 



pores, and crescentic lunarium. 

 Orthoceras limestone (B3), Reval, Esthonia. 



Anolotichia rhomhica, new species. 



6. A zoarium attached to a rock fragment, X1.5, showing the concentrically 



wrinkled epitheca. 



7. Celluliferous surface of the same specimen, X18, illustrating the rhomb- 



shaped zooecial apertures. 

 Wesenberg limestone (E), Wesenberg, Esthonia. 



Mitoclema horeale, new species. 



8. Six fragments, X6. 



Wesenberg limestone (E), Wesenberg, Esthonia. 

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