16 



On the Affinities of the Anthozoa Tahulata, 



In conclusion, I may attempt a provisional arrangement of 

 the two most important families of the old group of the 

 Tabulata : — 



I. Subfamily Favositin^. 



(Family Poritince. Order Perforata.) 



Genus 1. Favosites, Lam. Genus 5. Pachypora, Lindstr. 



Favositipora, Kent. 6. Nodulipora,JAndstr. 



3. Boemeria, Edw. & H. 



4. Striutopora, Hall. 



Koninckia, E. & H. 

 Beaumontia, E. & H. 



II. Family Heliolitid^e. 



Genus 1. Ileliolites, Dana. Genus 4. Calapoecia, Billings. 



2. Plasmopora, E. & H. 5. Thecostegites, E. & H. 

 (inclus. Propora). 6. Halysites, Fischer. 



3, Lyellia, E. & H. 7. Thecia, E. & H. (?). 



