INDIAN OCEAN PORITES. 231 
CAPE OF GOOD HOPE. 
242. Porites Cape of Good Hope (3)1. (P. Capensis prima.) 
[Cape of Good Hope, colls, Krauss and Bowerbank ; British Museum. ] 
Description.—The corallum forms solid masses without any symmetry of growth, sometimes 
as smooth flat cakes irregularly folded and distorted, with sand and quartz grains embedded ; 
fresh surfaces seem to creep over parts which have been killed by the sand. 
The calicles are from 1-1°25 mm. in diameter, angular or sub-circular, densely crowded 
and deepened; the walls are sharp-edged, frequently zigzag, not seldom incomplete; the 
skeletal elements being thick, usually smooth, threads. The intra-calicular, or septal, skeleton 
is only completed some way down, and appears irregular. Traces of stout pali can be seen and 
of the complete septal formula, but the surface of the specimen seems to have suffered somewhat. 
The section, however, shows it to consist of long, stout, wavy and continuous trabecule, quite 
far apart and joined by comparatively thin horizontal bars. 
This coral is interesting because of its locality and habit of life. I am not aware of any 
reefs at the Cape of Good Hope, and the specimens seem to live in the presence of vast numbers 
of large angular quartz-grains and pebbles. 
a. Zool, Dept. 49. 10. 5. 11. 
b. Zool. Dept. 40. 9. 30. 22. 
Group V.—INDIA AND PERSIA. 
INDIA. 
Several “ Porites ” were described from Sind by Martin Duncan, but, as far as I can make 
out, only one of them really belongs to the genus, namely the last in the following list: 
Porites superposita is a Goniopora. (See Vol. IV. p. 93.) 
Porites pellegrini, (See remarks below.) 
Porites Indica is a Goniopora. (See Vol. IV. p. 94.) 
Porites gajensis ? a Goniopora. 
Porites incrustans. (See below.) 
Porites pellegrini Duncan:—In Vol. IV. p. 108, I expressed the opinion that the Sind 
coral called Porites pellegrini Dunean* (non D’Achiardi) was a true Porites. The Porites 
pellegrint of D’Achiardi and Reuss were certainly Goniopore. I now doubt very much 
* Sind fossil corals, Mem. Geol. Surv. India (1880) p 67 ; pl. v. figs. 14, 15. 
