POLYNESIAN PORITES. 55 
these seem to be arranged as follows: There is a ring of six very large pali, which surrounds 
a minute fossa ; round the pali is a ring’of twelve granules, which appear to be wall granules, 
while a single row of granules may intervene between calicle and calicle. The septal granules 
are either absent or fused with those of the wall or with the pali. 
The living polyps are brown, the “lips semilunate” and yellow, the tentacles whitish 
and “ obsolete.” 
This is obviously a cceenenchymatous Porites, as was also the one last described; but 
the two are not closely allied, for whereas this is covered with large granules, which represent 
the tips of stout trabecule shown in fig, 7c, it is the horizontal elements which are most 
pronounced in P. Fiji Islands 14. 
The single specimen was 14 em, high, and from 11-12 by 7°5 em. at the base. 
31. Porites Fiji Islands 416, (P. Fidjiensis sextadecima.) 
[‘“ Feejee Islands,” coll. Wilkes Expedition, 1838-1842. | 
Syn. Porites lichen Dana, Zooph. (1848) p. 566, pl. lvi. fig. 4. 
? Porites lichen Quelch, Chall. Rep. xvi. (1886), p. 181 (see P. Sandwich Islands 7). 
non Porites ? lichen Bassett-Smith, Ann. and Mag. Nat. Hist. (6°) vi. (1890) p. 456 (see P. China 
Sea 14). 
Description.—The corallum is encrusting, 3 mm. thick, with undulate surface, margin 
subacute, often flexed upwards, and free for 8 mm. 
The calicles are shallow, but with the walls as thin ridges, which run over the surface as 
a reticulum. 
See observation under next heading. 
32. Porites Fiji Islands ga l7, (P. Lidjiensis septimadecima.) 
[“ Feejee Islands,” coll. Wilkes Expedition, 1838-1842.] 
Syn. Porites reticulosa Dana, Zooph. (1848) p. 567, pl. lvi. fig. 3. 
Description—The corallum is encrusting, scarcely at all tree round the margin, with 
undulate surface, from which mammille and tubers arise. 
The calicles are neatly angular, shallow, 1:5 mm. across, plane at bottom. The walls are 
again prominent as thin ridges, running, as in the last form, like a reticulum over the surface. 
The septa are thin, 
Milne-Edwards and Haime suggested that these two corals belong to the same species of 
Goniopora, but Dr. Verrill, who had the advantage of re-examining Dana’s types, did not accept 
the suggestion. Dana’s figures also make it clear that they cannot be classed under one 
heading. There is only one encrusting Porites in the National Collection from the central 
