220 Christmas Island. 



a fourth incomplete orders of septa. The corallites do not exhibit 

 any tendency towards a serial arrangement, and the calices are 

 polygonal. 



The species must be compared with two living species, whose 

 characters areas follows: — 



A transverse section of the Christmas Island coral is figured as 

 Fig. 4, and it appears to bo a tj^pical form of P. magnifica. Two 

 well-preserved specimens of the same species were collected by 

 Mr. Andrews from the existing reefs. The fossil was found in the 

 limestones of the sea cliff, at the mouth of Sidney's Dale. 



Von Eeuss ^ has described as P. dtihia an allied species from the 

 Javan Miocene. 



Anisoccenia murrayi, sp.n. 



Diagnosis. — Corallum massive. Corallites large, about 1 5 mm. 

 in diameter, and closely united. Septa in five orders : those 

 belonging to the different orders are of proportional lengths. 

 The primary and secondaiy septa have internally thickened 

 paliform lobes ; the primaiy septa, in fact, appear clavate. 



Distribution. — Orbitoidal Limestone of the central nucleus of the 

 island, from fallen blocks from high cliff (400 feet) at south end 

 of Flying Fish Cove (^"0. 964). 



Figure. — PI. XIX, Fig. 7. Part of a transverse section, X 2 dia. 



Affinities. — This interesting coral is represented by one specimen 

 in a compact and apparently structureless limestone. The coral is, 

 however, well shown in thin sections. Its nearest ally is the 

 Miocene Anisoccenia crassisepfa, Peuss,- from which it differs by 

 having the corallites more than twice the size ; von Eeuss gives 

 their diameter as 7 mm. 



Anisoccenia favoides, sp.n. 



Diagnosis. — Corallum massive, with the corallites small and 

 elongate ; they vary in width from 2-3 mm. and in length from 

 3-7 mm. The corallites are closely united by a dense wall. 

 Septa very short and thick, with well-marked dark lamina. The 



1 A. E. von Eeuss, Foss. Kor. Java : Xovara Reise, Geol. Tb., 1867, vol. ii, 

 ' ' ' i, fig. 3. 



von Reuss: ibid., p. 16C, pi. i, fig. 2. 



p. 167, pi. i, fig. 3 

 « A. E 



