Plate 7. 



Stictoporella gracilis (Eichwald). 



Figs. 1, 2. Two zoaria, natural size, showing the expanded, attached base and the 

 cribrose branches. 



3. Surface of original of fig. 1, X12. 



Glauconite limestone (B2), Wassilkowa, government of St. Petersburg. 



Stictoporella cribrosa Ulrich. 



4. Fragment of a zoarium, Xl-5, preserving the expanded, attached base. 



Wassalem beds (D3), Uxnorm, Esthonia. 



Coscinium jprxnuntium, new species. 



5. A rather complete zoarium, natural size, showing the cribrose branches and 



attached basal portion. 



6. Surface of the same, X12, exhibiting the prominent lunaria and the papillose 



interzocecial spaces. 



Orthoceras limestone (B3), island of Rogo, Esthonia. 



Phyllodictya flahellaris, new species. 



7. The incomplete, flabellate type-specimen, natural size. 



8. Surface of same, X12, showing a solid macula and adjoining zooecia. 



Orthoceras limestone (B3), island of Rogo, Esthonia. 



Spatiopora lineata incepta Ulrich. 



9. Life-size view of the Russian specimen referred to this variety. 



10. View of the surface of the same, X4. 



Wesenberg limestone (E), Wesenberg, Esthonia. 



Anolotichia impoUta Ulrich. 



11. Sxu^ace of a Russian example of this species, X4. 



Kuckers shale (C2), Baron Toll's estate, Esthonia. 



Coeloclema crassimurale, new species. 1 



12. Surface of a basal expansion, X4, referred to this species. 



Jewe limestone (Dl), Baron Toll's estate, Esthonia. 

 362 



