& 
Fase Sat tee Sie, closes Sikes an Na le 
aie | Sead Ie eh Sires Tat Le ey F 
o: if i", eat * 
60 ON THE ANATOMY OF DISTICHOPORA. 
(in D. violacea) often quadrate or angular. They at tm 
Pisa Ae NY) 
Pe lgt! I pee Se , 
aes ‘ = 
Genus Crypronetia. Milne-Edwards, 1849. 
Summits of the cyclo-system covered by a lid. Cryptheli 
E & H. 
Genus Astytus. Moseley, 1878. 
Cyclo-systems without a lid. 
In the definition which Mr. Moseley gives of Distichopora I 
think it necessary to make certain little additions or slight 
rections after giving his words. 
Distichopora. Lamarck. Corallum branching, flabelliform, with 
bell 
The remarks I wish to add are that in all the ape t 
= : + 2 : 
me, viz., D. rosea, D. coccinea, D. violacea, D. livida, the $ peiDg. 
pores are very irregular in shape, and vary extremely in size 0° © 
studded with trabecule on the inside, see fig. 2, 3 and 10. 
lopores are generall sai? ‘srrounded by 
well defined watt hes y on a raised line and surroun ¥' 
bush ; in D, livida it is very long and covered with 
Spinous processes (fig. 10). 
