282 
MADREPORARIA, 
P. China Sea 16. With walls tall, thin, and straight; septal trabecule rise to 
various heights close to walls, and irregularly joined together. 
P. Ceylon 18, With walls tall, thin, and straight, and septal trabeculz close to 
walls, rising to different heights, and variously joined together and to the 
pali, often incomplete. 
P. Rodriguez 2, This character seen at the sides; for the top, see below, 8, iv. 
P. Cape of Good Hope 1. With septal trabecule close to walls (? also as in 4, v.). 
b, iv. The septal trabecule rise up with the wall trabecule, and together form a reticulum 
convex or flat-topped. 
P. Tonga Islands 6. With walls showing all stages between being thin, mem- 
branous and single, and being united with septal trabecule to form a delicate 
reticulum. 
P. Tonga Islands 7. The same, though with traces of extra trabecule, cf. B. 
P. Fiji Islands 23. With wall- and septal trabecul, as if united to form trans- 
verse striz across the wall-tops. 
P. Fiji Islands 24. With wall- and septal trabecule united into an irregular, 
flaky wall, from which their often branching tips arise. 
. Ellice Islands 1. The same, only the wall- and septal granules unite so as to 
striate the walls. 
. Ellice Islands 2. With the septal trabecule involved in bold reticular walls. 
. Ellice Islands 12. With walls as a close, convex, flaky network. 
. Ellice Islands 13. The same, but only here and there, walls mostly thin and 
membranous (see 0, v.). 
. Ellice Islands 17. The septal trabecule involved with zig-zag wall in stout, 
open, irregular, but really simple, wall reticulum. 
. Solomon Islands 7. With the septal trabecule as here, or else free and 
irregular (as in 3, i.). 
. Solomon Islands 8. With skeleton granular and frosted, belonging here 
when the wall is round and convex, or to 8, iii. when with a straight, sharp 
median wall ridge. 
. New Guinea 2, With the walls irregularly zig-zag, here thin and thread- 
like, there involved with the septal trabecule into a reticulum; calicles 
flush with the surface. 
. Bay of Panama 1. With the details rather obscured by the echinulate 
character of the skeleton. 
P. Sandwich Islands 5, With flat-topped wall only in parts; other parts may 
belong to section B. 
P. Great Barrier Reef 15, With walls, a flaky reticulum with median keel; 
septal trabeculee mostly lost in the wall. 
P. Great Barrier Reef 16. With walls appearing flaky, but with confused 
branching and reticular threads on their tops. 
P. Great Barrier Reef 28 and 29. With walls round-topped, frequently as fine, 
delicate, small-meshed networks. 
P. Great Barrier Reef 33. With walls as an elegant network, with, however, 
faint median ridges; in parts, as in @, i. 
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