CORALS FROM MURRAY, COCOS-KEELING, AND FANNING ISLANDS. 7S 

 abundant Zooid pale yellow." Specimens with thicker, less attenuate branches (pi 20 

 zooiftale "llow" WCr """ °" ^ ^^ ^ ° f the ^°° n ' co,or ^ b ™n, th°e 

 Distribution.— Red Sea; Indian Ocean. 



Genus POCILLOPORA Lamarck. 

 1816. Pocillopora Lamarck, Hist. nat. Anim. sans Vert., vol 2 p -73 

 1849. Pocillopora Milne Edwards and Haime, Acad. Sci., Comptes rend., vol. 29, p. 261. 



Type species: Pocillopora acuta Lamarck. 



The following species are considered in this paper: 



Pocillopora bulbosa Ehrenberg; Murray Island; Cocos-Keeling 



damicornis (Pallas) Dana; Cocos-Keeling; Fanning Island. 



danae Vernll; Murray Island. 



verrucosa (Ell. and Sol.) Lam.; Cocos-Keeling. 



meandnna Dana; Fanning Island. 



elegans Dana; Cocos-Keeling. 



eydouxi M. Edw. and H.; Cocos-Keeling. 



woodjonesi, new species; Cocos-Keeling. 



As incidental to describing the species of Pocillopora and their variants found 

 in the Hawanan Islands, 1 most of the Pacific representatives of the genus were 

 reviewed reference may be made to that paper and the information contained 

 in it need not be repeated here. As there is a definite order, which I trust is ob- 

 vious, in the succeeding arrangement of species, a synoptic table seems unnecessary. 



Pocillopora bulbosa Ehrenberg (fide Dana). 

 Plate 21, figures 1, la, specimen identified as P. bulbosa by Dana. Also plate 12, figures I, 2, 3 of Dr. Mayer's article. 

 1846. Pocillopora bulbosa Dana, U. S. Expl. Exped., Zooph., p. 527, plate 49, figs 5 c a 

 1907. Pocillopora acuta Bedot, Madreporaires d'Amboine, p. 152, plate 7 figs 14-17 

 1907. Pocillopora Wood Jones, Proc. Zool. Soc. London for 1907, p. 536, plate -8 fig 3 

 1910. Pocillopora Wood Jones, Coral and Atolls, p. 99, text-fig. 31. " 



There is much confusion regarding the names damicornis and bulbosa, as the 

 former name proposed by Pallas included an aggregation of forms now divided 

 into a number of species. Lamarck (1816) refers to Esper (Fortsetz., plates 46 and 

 46a), as illustrating damicornis; Dana refers to plate 47 of Esper (Fortsetz ) as 

 representing damicornis, and to plate 46 of the same work as P. bulbosa Milne 

 Edwards accepts Dana's identifications, but refers Esper's plate 46a (Fortsetz ) to 

 P. damicornis, wherein he differs from Dana, but both agree on P. bulbosa Regard- 

 ing the latter, Milne Edwards says: "Ce polypier pourrait bien ne pas etre dis- 

 tinct specifiquement du P. damicornis." It therefore appears that P bulbosa 

 Ehrenberg is a synonym of P. damicornis (Pallas) (emend. Lamarck), and that the 

 damicornis of Dana (Esper, Fortsetz., plate 47) should receive another name; but 

 a positive decision can not be reached until Lamarck's original specimens are 

 restudied As the original specimens of Dana's P. bulbosa and P. damicornis are 

 in the U. S National Museum, I am following his usage. In his treatment of 

 P. bulbosa he is in accord with Milne Edwards, but the similarity between it 

 P. cespitosa Dana, 2 and P. acuta Lamarck is so great that the three may belong 

 to the same species. Dana and Milne Edwards appear to disagree regarding P. 

 damicornis. 



Stations, Murray Island.— Southeast reef, line I, 400, 600, 800, 1,200, 1,400, 

 and 1,600 feet from s hore, and Lithothamnion ridge. 

 'U. S. Nat. Mus. Bull. 59, pp. 84-199, 1907. 

 'See Vaughan, U. S. Nat. Mus. Bull. S9 , pp. 86-91, plate 10, figs. 1, la, 2, za; plate 1 1, figs. 1, 2, I9 o 7 . 



