Plate 2. 



Fig. 1. Leptastrea purpurea (Dana). Calices, X 4, to show the formation of 

 new calices by budding between the older ones. 

 2. Goniastrca pectinata (Ehrenberg). Calices, X 4, to show the formation 



of new calices by the division of the older ones. 

 3,3a. Millepora truncata Dana. Pig. 3, the skeleton, natural size; fig. 3a, 

 part of the surface, X 8, to show the larger gastropores and 

 smaller dactylopores. 



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