Description of Plate. 
1. Stomatopora gracilis, Edw., var. delicatula, Vine. 
2. ,, ramea, Blainville. 
3. ,, granulata, Edw. 
4. longiscata, d'Orb. 
5. ., linearis, d'Orb. 
6. divaricata, Roenier. 
7. Diastopora hunstantonensis, Vine. The central cells of a 
small colony. 
8. Diastopora hunstantonensis, Vine. Var. A. Probably 
the D. contracta, Seeley. 
