On the genera Heterophyllia, Battersbyia, Palaeocyclus, and Asterosmilia; the anatomy of their species, and their position in the classification of the sclerodermic Zoantharia

Scratchpads developed and conceived by (alphabetical): Ed Baker, Katherine Bouton Alice Heaton Dimitris Koureas, Laurence Livermore, Dave Roberts, Simon Rycroft, Ben Scott, Vince Smith