MADREPORARIA., 
P. Ellive Islands 12. With irregular, long, oval outline, and smooth surface. 
. Gueen Charlotte Islands 1. A smooth, stalked, rounded mass. 
. Solomon Islands 1. A knob, with slightly indented surface. 
. Solomon Islands 5. Smooth, slightly wavy surface. 
New Ireland 1, Nearly hemispherical, with smooth surface. 
. Laysan 1, Nearly regularly rounded, but with flattened base. 
Great Barrier Reef 14. Rolls over, but the fresh growth always rises as a smooth 
knob, 
. Great Barrier Reef 20. Kgg-shaped, with slightly wavy surface, attached by its 
blunt end to seaweed. 
. Great Barrier Reef 29. No matter how grown, always resulting in smooth, 
rounded knobs. 
Great Barricr Reef 31, Typical, the stock appears once to have died down, and 
to have been re-encrusted by a new layer. 
Great Barrier Reef 34. Slightly oval in outline, otherwise typical. 
. North-East Australia 1, Trregularly globular, quite smooth. 
. North-West Australia 3. Oval outline, and slightly flat-topped. 
North-West Australia 7. Stalk and interior destroyed (? by boring sponge). 
. Philippines 3. Irregular oval, with smooth top. 
. China Sea 1. Globose, with narrow stalk. surface uneven. 
. China Sea 17, Very smooth, inclined to taper at the top above the bulging sides. 
. Ceylon 6. A perfectly smooth, oval mass, formed upon dead coral. 
Diego Garcia 2. Overturned, but rising again as a smooth, rounded knob. 
. Rodriguez 1. Smooth, round, slightly flattened on the top. 
Rodriguez 2. Though rolled over, rises as a round knob, slightly flattened 
on the top, and with wavy sides. 
Doubtful :— 
P. Great Barrier Reef 15. A fragment. 
P. China Sea 2. “Glomerate.” 
P. Ellice Islands 8. Smooth and rounded, but apparently influenced by a boring 
sponge. May also belong to E, a. 
P, Mauritius 2. Smooth, but distorted by the Gastropod Mayilus. 
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(ii.) Globular with convoluted surfaces. 
If the convolutions are pronounced and appear early, the older stocks may cease 
to be rounded, and become irregular lobulated or reniform masses. 
P. Fiji Islands 2. An old reniform mass, repeating in each of its lobules the form of 
the young stock. 
P. Ellice Islands 17. Convolutions marked, but shallow and wide. 
P. Ellice Islands 15. | Fragments, both showing wavy surfaces, with rest of the 
P. Ellice Islands 14. ) growth distorted. 
P. Solomon Islands 6. A deeply convoluted mass, incorporating branches of a 
Madrepora. 
P. Great Barrier Reef 8. Flattened top, showing signs of cross valley formation. 
P. Great Barrier Reef 23. Two fragments of a large, deeply convoluted stock. 
P. Great Barrier Reef 33. Small, no old stock known. 
