POLYNESIAN PORITES. 53 
This is Dana’s original description. To it we must add the statement that one of his 
specimens was 30 cm. high and 17 cm. broad, and the interior of the stock is said to be of a 
dense but uniform texture throughout. 
From the figures we gather that the walls are simple, but thickly frosted; the septa are 
also frosted and in the typical formula, but with feebly developed pali. There is a conspicuous 
columellar tubercle. 
The method of growth appears to have somewhat resembled that of P. Ellice Islands 8, 
p. 65, and is not common. 
Professor Studer, in 1878, described a form from the reefs in the back of Kaiserin Augusta 
Bay, Bougainville, Solomon Islands, which he thought might be of the same species as this 
coral described by Dana. 
27. Porites Fiji Islands 412, (P. Fidjiensis duodecima.) 
[‘“ Feejee Islands,” coll. Wilkes Expedition, 1838-1842.] 
Syn. Porites favosa Dana, Zooph. (1848) p. 564, pl. lv. figs. 4, 4a. 
Description.—The corallum rises as an erect, smooth, stout column with a flat top, and 
humps or lobes appear here and there on its sides. The living layer extends to its base. 
The calicles are deep, with tall sharp walls, about 1°5 mm. in diameter. The septa, as 
seen in the figure, seem to be rather deep down in the calicle, wavy, jagged and thick, although 
Dana describes them as being “acute and durable.” 
The single specimen was 10 cm. in height and 7°5 by 5 em. in breadth. 
The character of the septa shown in Dana’s figure, the irregularity of their fusings, and 
the absence of all traces of pali make me think that this, like his “ P. limosa,”’ is a Goniopora. 
We must, however, remember that Professor Verrill, who re-examined the specimens, 
left Dana’s names for both these corals unchanged, and the evidence for this coral being a 
Goniopora is not quite so clear as it is in the case of G. limosa (see Part IL.) or his P. conferta 
(= Mad. conglomerata, Esper’s pl. lix.) 
28. Porites Fiji Islands (9418, (Fidjiensis tertiadecima.) 
[“ Feejee Islands,” Dana, coll. Wilkes Expedition, 1838-1842. ] 
Syn. Porites cribripora Dana, Zooph. (1848) p. 564, pl. lv. figs. 5, 5a. 
Description.—The corallum appears to build up glomerate masses by continual encrusting 
layers 6-12 mm. thick, with thick edges involuted or folded under. The surface is raised 
into smooth, rounded, wave-like hammocks, separated by smooth, round, concave valleys. 
The calicles are small, about 1 mm. in. diameter, “ puncture-like 
”? 
and deep. The walls 
appear to be built up of the septal strie, crowded together irregularly—that is, showing little 
trace of radial symmetry; the parts of the septa which project into the fossa are deep down 
and obscured, but they send up small pali which appear as minute points in the opening of 
the ealicle. 
