106 MADREPORARTA. 



PLATE XXV. 



The Type specimen of Tttrlnnaria suhvcrsa, x %, showing the stalk grown round a portion of 



the substratum. 

 The Type specimen of Astrccopora expansa, X \, seen from above. 



„ „ „ horizontalis (Seychelles), X §, seen from above. 



Young fUsc-shaped specimen of Astrccopora myrioplithalma (Mauritius), x J. 



PLATE XXVI. 



Old humped stock of Astravpora myrioplithalma (Mauritius), x J. 



PLATE XXVIL 



The two sides of the Type specimen of Astrccopora incrusfans, x §, to show the variations in 

 one and the same specimen. 



PLATE XXVIII. 



Large (Type) specimen of Astrccopora llsteri (Tongatabu), growing on the edge of an over- 

 turned fragment of a previous growth of the same. 



PLATE XXIX. 



Small specimen of AstvwojMra listeri, from the side to illustrate the pulvinate method of 



growth, x J. 

 The Type specimen of Astrccopora arenaria (Red Sea), x ^, from the side. 



,, ,, „ gracilis (Solomon Islands), x 4, from the side. 



„ „ „ occllata (Warrior Island), from the side, about natural size. 



PLATE XXX. 



The type specimen of Astrccopora oralis, from above, about natural size. 



A globular specimen of Astrav2)oi-a 2)iinctl/cra (Great Barrier Eeef), X J, seen slightly from 



below, to show the previous growths and the epitheca. 

 The Type specimen of Astrccopora kcnti, x ^, from the side. 

 A specimen of Astrmopora p-ofunda, x i, from the side. 



PLATES XXXI.-XXXIII, 



Lithographed drawings of enlarged calicles, showing details described in the diagnoses of 

 the species. 



LONDON : I'lilNTED IIY WILLIAM CLOWES AND SON.?, LIMITED, STAMFORD STREET AND CHARINti CnOSS. 



