EEPOKT ON MATERIALS FROM THE BORINGS AT FUNAFUTI ATOLL. 323 



outer slopes of the reef at 35 fathoras, and Mr. Hedley* found it alive and 

 flourishing at low-water mark at the boat entrance of Nukulailai, an atoll about 

 65 miles south of Funafuti. 



Made EPOR ARIA Aporosa. 



Genus Stylophora, Milne-Edwards and Haime. 



Small colonies of this genus occasionally occur in the Main Boring at long intervals 

 apart. At the depth of 990 feet and from this to the bottom of the boring, they are 

 more numerous and are present in nearly all the cores. The genus is also represented 

 in the First Boring. It has not been possible to distinguish the species. J. Stanley 

 GARDTNERt has recognised seven species on the outer reef and in the lagoon at 

 Funafuti, between 5 — 30 fathoms. 



Genus Seriatopora, Lam. 



This genus has been met with in the Main Boring between 430 — 10S6 feet. Except 

 in the lower part of the boring, it is not common. It is also present in the Lagoon 

 Boring. The corallum is usually dissolved away leaving a hollow mould with the 

 imprints of the calices in hardened sediment. J. S. Gardiner^ records two species 

 living at Funafuti at the depth of 20 fathoms. 



Genus Pocillopora, Lam. 



This genus is represented in all the borings, and is one of the commonest forms. 

 In the Main Boring, from near the surface to 750 feet, it is sporadic in its occurrence ; 

 below this depth to the bottom of the boring it is very abundant. Segmental casts 

 of the corallites are frequent in unconsolidated material ; the surface characters are 

 seldom shown. Only one species has been distinguished. From the outer reef at 

 depths of 5 — 30 fathoms, and from the lagoon at Funafuti, Mr. J. S. Gardiner§ 

 describes fourteen species and varieties, but these are so variable that he is 

 "doubtful whether all these so-called species should not rather be described as 

 varieties of one species, the characters of which would be the characters of the whole 

 genus." 



Genus Euphyllia, Dana. 



Only the cast of an imperfect specimen was met with in the Main Boring at 1075 

 feet. This genus has not been noticed in the recent fauna of the atoll. 



Genus Cceloria, M.-Ed. and H. 

 This genus was first observed in the Main Boring at 340 feet ; below this it occurs 

 rarely as casts, at long intervals apart, down to 875 feet ; from this to the bottom of 



* Mem. III., Austral. Mus., Sydney, p. 308. 

 t 'Zool. Soc. Proc.,' 1898, pp. 995-1000. 

 J Ihid., 1897, pp. 952, 953. 

 § Ibid., pp. 942—952. 



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