CORALS FROM MURRAY, COCOS-KEELING, AND FANNING ISLANDS. 79 



Habitat, etc., Cocos-Keeling Islands. — The following notes of Dr. Wood Jones 

 apply to the normal growth-form: 



"One of the most common of all the varieties, found both on the barrier and in the 

 lagoon, grows to considerable size; when large, some branches are plate-like, while others 

 are broken up into many secondary branches. The color is brown or pink. The exposed 

 portions of the zooids are brown." 



As to a growth-form from the region of surf on the barrier. Dr. Wood Jones, 

 who twice figured it,' says in his notes: 



"A specimen taken from the barrier, where wave action is constant and powerful. 

 Such specimens are common constituents of the composite rocks of the barrier. They 

 present the maximum of stunting due to violent action of the surf; the growth of such 

 colonies is limited to a few inches in height. The color of the colonies is brown; that of 

 the exposed portions of the zooids brown." 



Height of this specimen 51 mm., length 71 mm.; width in medium portion 

 about 45 mm. The upper surface is beset with crowded verrucae about 3 mm. in 

 diameter at the base and about 2 mm. tall. Calices and coenenchymal ornamen- 

 tation typical for the species. 



Distribution. — Cocos-Keeling; Fiji Islands. 



Pocillopora eydouxi Milne Edwards and Haime. 



Plate 24, figure I, specimen from Murray Island; figures 2, 2a, branch of a specimen from Cocos-Keeling Islands. 



i860. Pocillopora eydoxixi Milne Edwards, Hist. nat. Corall., p. 306, plate F 4, figs, i, \a. 



1897. Pocillopora grandis Gardiner, Proc. Zool. Soc. London for 1897, p. 950, plate 57, fig. 3 (non Dana). 



1907. Pocillopora Wood Jones, Proc. Zool. Soc. London for 1907, plate 27, fig 3^. 



1910. Pocillopora Wood Jones, Coral and Atolls, p. 90, text-fig. z^b. 



The growth-form and the calicular characters of this species have been well 

 presented by Milne Edwards and by Gardiner (by the latter under the erroneous 

 name of P. grandis). Whether the branch summits do or do not bear verrucae 

 is not of specific importance, but usually in P. eydouxi there are no verrucae on 

 the terminals of fully developed branches. Milne Edwards and Haime's type is 

 probably a peripheral branch. The coenenchymal granulations consist of erect 

 spinules; frequently those medially situated on the intercalicular ccenenchvma 

 are tangentially compressed, while often a crown of erect, pointed spinules cor- 

 respond to the outer ends of the septa. Several of the calices figured by Milne 

 Edwards clearly show a crown of peripheral spinules. This coenenchymal orna- 

 mentation constitutes the most important difference between P. eydouxi and P. 

 woodjonesi, the species next to be described. P. glomerata Gardiner may be only 

 the rough-water facies of P. eydouxi. I pointed out in my paper on the Hawaiian 

 Madreporaria- that P. eydouxi is probably a synonym of P. elongata Dana. 



Habitat, etc., Cocos-Keeling Islands.— Dr. Wood Jones says: 



"Inhabits only the still, deep water of the lagoon. The colony from which the frag- 

 ments were taken was 2 feet high, and growing luxuriantly (east end of Pulu Tikus). The 

 color is invariably brown, but far paler than that of similar species in the barrier pools; the 

 exposed parts of the zooids are also brown." 



Station, Murray Island. — Lithothamnion ridge, southeast reef. 



Distribution. — Cocos-Keeling. Reported by Gardiner from Funafuti, outer reef; 

 Rotuma, outer reef and 2 fathoms; Lifu, Loyalty Islands. The U. S. National 

 Museum has a fine suite of specimens from Funafuti lagoon {Albatross, 1899). 



'Proc. Zool. Soc. London for 1907, plate 27, figure 3c. Coral and Atolls, 1910, p. 90, text-figure 25c. 

 'U. S. Nat. Mus. Bull. 59, p. 93, 1907. 



