276 Transactions. 



Pocillopora bulbosa Ehrenberg {fide Dana). 



1846. Pocillopora bulbosa Dar.a, U.S. Ex])l. Exped., Zooph., p. 527, 



pi. 49, figs. 5, 5a. 

 1907. Pocillopora acuta Bedot, Madreporaires d'Amboine, p. 152, pi. 7, 

 . figs. 14-17. 

 As it seems to me actual intergradation between P. bulbosa and P. acuta 

 has not been established. I am following Dana's usage. However, it is 

 entirely probable that P. bulbosa Ehrenberg (as identified by Dana), P. sub- 

 acata Milne-Edwards, and P. cespitosa Dana will ultimately be referred 

 to the synonymy of P. acuta. 



The terminal branchlets of the Kermadec Island specimen are up to a 

 little over 1 cm. long, but at that length are already subdividing into from 

 two to four young branchlets. The greater diameter of the ends of the 

 summit incipient branchlets is from 3-5 mm. to 5*5 mm. ; the lesser from 

 about 2 mm. to 3 mm. These measurements show that the branchlets are 

 not greatly attenuate. The calicular and coenenchymal characters are as 

 usual in the species. 



Locality. — Meyer Island : on rock ; depth, 1 fathom. 



Orbicella curta Dana. (Plate XVII.) 



1846. A. Orbicella curta Dana, U.S. Expl. Exped., Zooph., p. 209, pi. 10, 



figs. 3, 3a-3c. 

 1846. A. Orbicella coronata Dana, ibid., p. 211, pi. 10, figs. 4, 4a-4/. 

 1899. Orbicella wakayana Gardiner, Proc. Zool. Soc. Lond., p. 753, 



pi. 49, fig. 2. 

 1914. Favia wakayana (and synonymy) Matthai, Trans. Linn. Soc. 



Lond., 2nd ser., Zool., p. 104, pi. 25, fig. 4. 



The specimen from Kermadec Islands has a somewhat glomerate upper 

 surface, with many of the calices greatly deformed. Maximum length 

 of the deformed calices, up to 10*5 mm. ; width, 5 mm. Some of these 

 undergo fission. A large slightly deformed calice is 7 mm. by 8 mm. in dia- 

 meter, and 5-5 mm. deep. The diameter ranges down to 5 mm. or 5*5 mm. 

 Asexual reproduction usually (normally) b)^ intercalicular gemmation. 



At one time it seemed to me that this specimen should be referred to 

 another species, but its resemblances to 0. carta are too many, especially 

 when the good suite of specimens from the Paumotus, in the U.S. National 

 Museum, is considered. 



Locality.- — Meyer Island : on rock ; depth, 1 fathom. 



Cyphastrea serailia (Forskal). 



1914. Cyphastrea serailia Matthai, Trans. Linn. Soc. Lond., 2nd ser., 

 Zool., vol. 17, p. 39, pi. 7, fig. 4 ; pi. 11, figs. 1-9 ; pi. 13, 

 fig. 8 ; pi. 38, figs. 1, 5. 



The specimen forms an incrustation (about 14 mm. thick) over Litho- 

 thamnium, which in its turn incrusts dead coral (Montipora). Many of the 

 calices are completely typical of C. serailia — i.e., with 3 cycles of septa, 

 the tertiaries small but with distinct costae corresponding to them ; but 

 many others have from 1 to 5 principal septa which are really elongate 

 tertiaries : in other words, from 13 to 17 septa extend to the columella. 



Locality. — Denham Bay, Sunday Island : dredged in about 20 fathoms. 



