﻿EXPLANATION OF THE PLATES. 191 



PLATE XVI. 



1. Specimen (b) of M. lohulata, x f , from above. 



2. The Type specimen of M. Maminata, X -|, from above. 



3. „ „ M. tubifcra, X f, from above. 



PLATE XVII. 



1. The Type specimens of M. denticulata, x f , from above. 



2. Two fragments of the Type specimen of 31. pulclurrima, x f , from above and from below. 



3. The Type specimen of M. australiensis, X J, slightly tilted. 



PLATE XVIII. 



The Type specimen of M. proli/era, X §, from above. 



PLATE XIX. 



1. Part of an old stock of M. mceandrina, X |, from the side. 



2. A massive growth of M. verrucosa, X i, from above, specimen d. 



3. The Type specimen of M. sinensis, X ^, from above, 



PLATE XX. 



A complete stock of M. dance, x §, which has covered over a large stock of M. flammans, 

 a small portion of which protrudes near the centre. 



PLATE XXI. 



1. The Type specimen of M. amhigua, X ^, from above. 



2. „ „ M. undaia, X J, from above. 



3. „ „ M. perfo7'ata, X f , from above. 



4. „ „ M. mammillata, x f , from above. 



5. „ „ M. cactus, X f , from the side ; the stock was attached above on the 



right to a Madrepore, 



PLATE XXII. 



1. The Type specimen of M. challengeri, X §, from above. 



2. ,; „ M. scutata, X §, from above. 



PLATE XXIII. 



1. The Type specimen of M. peltiformis, x J, from the side, growing across the tips of the 



branches of a Madrepore. 



2. The same, from above. 



3. Specimen {d) of M. minida, x f , from above. 



4. The Type specimen of M. annularis, X |, from above. 



