CLASSIFICATION OF ZOOPHYTES. 



2. Transitions of the Astrceidce to the Caryophyllidce and Madreporacea. 



Caulastrsea 

 Astrtea 1 



[A. orbicellce 



Cyathophyllidse . . 



S Mussa I Fungia \ Stephanoph. 

 \ Euphyllia J Cydolites ^ Desmoph. 

 f A. rotulosa .... Cyathina 

 A. pleiades .... Stylina 



| A. 'tnicrophthalma . 

 ^Echinopora . . . 



Anthoph. 

 ) Oculina 



Turbinolia, 

 Caryophyllia, 



Dendrophyllia, T . . 



,-, r .' Madrepora, 



Gemmipora I . 



t - lm > Goniopora, Porites, 



Heliopora. 



Astroiti8 



Astrteopora 



3. Transitions of the Madreporidce to the Caryophyllidce. 



Madrepora . 



It is impossible in tables, or in any manner on a plane, to give a 

 correct and complete idea of all the interlinkings of genera ; circles 

 give a regularity to the reticulations, which is not found in nature. 

 The passage of the Madrepores into the Manoporee (table 3), and 

 from these into the Alveoporse, is almost a direct line ; from the 

 last, the line branches either way into the Porites and the Sideroporae, 

 and the Sideroporse pass into a network of species of the family 

 Favositidse, the Seriatoporse of which appear to lead the way to the 

 Oculinse. The Porites, through the Gonioporse, graduate into the 

 Astrseoporae, and thence to the Astroites on one side and the Gemmi- 

 porse on the other. The Madreporse also pass into the Gemmiporse, 

 and likewise into the Dendrophyllige, which two groups are closely 

 allied though distant in the table ; the four lines thus meet in the 

 Caryophyllia family, the genera of which have their principal grada- 

 tions, as shown above. By a study of the other tables, the relations 

 of the groups will be made out without particular explanation. The 

 Actinaria graduate towards the Alcyonaria, through certain Actiniae, 

 with four or eight lobed disks. 



The following table contains a general view of the Classification of 

 Zoophytes, to which the principles discussed appear to lead, together 

 with the characteristics of the several subdivisions. 



