1909.] MARIXE FAUXA FROM MERGUI ARCHIPELAGO. 901 



Family F u x g 1 1 D xE (Milne-Edwards <k Haime). 



Genus FuxGiA Lamarck. 



FUXGIA FUXGITES Limiceus. 



Var. AGARiciFORMis Doderlein [7]. 



Fung'M agariciformis Lamarck. 



Fangia tenidfolla ^lilne-Edwards k, Haime [26, 27]. 



Fangia repawla Milne-Edwards & Haime [26, 27]. 



Fimgia linncei Milne-Edwards & Haime [26, 27J. 



Madrepora fungites Forskal. 



Doilerlein [7] identifies F. fangites var. agariciformis with 

 F. agariciformis and F. tenuifolia, and F. rejJanda with F. linncei. 

 Milne-Edwards [27], however, gives F. repanda as synonymous 

 with Madrepora fangites and F. agariciformis, and F. linncfi 

 also with 21. fangites ; -while F. tenuifolia he identifies with 

 /'. agariciformis. The descriptions given by ]\Iilne-Ed wards of 

 these species show no marked ditierences beyond those one would 

 expect in a form which Doderlein has showix to be highly variable, 

 and they should therefore, I think, be absorbed into F. fangites. 



There are in the collection two adult and three young specimens, 

 the latter having well-developed peduncles and being of irregular 

 shape, fiat or sometimes slightly concave above. They measure 

 from .30 x 22 mm. to 64 x 6H mm. The two adult specimens are 

 concave below and arched above to a height of 38 mm. in the 

 centre. They measure 110 x 98 mm. The scar of attachment is 

 ju.st to be distinguished. 



Localities. — >Station XXIX. High Peaked Island. Bottom : 

 coral-reef. 3 young specimens. Locality of adult specimens is 

 unrecorded. 



(/lenus DiASERis Milne-Edwards it Haime. 

 DiASERis DLSTORTA Michelin. (Plate LXXXV. figs. 2^, 3 a.) 

 Faiigia distorta Diaseris-iovm of Doderlein [7]. 

 Bourne [5] has already criticised Quelch's [33] opinion that 

 this species is really nothing more than abnormal specimens of 

 Cycloseris {Fangia), and shown that broken and repaired forms 

 of the latter differ very markedly from Diaseris. Doderlein, 

 however, says that he finds Cijcloseris-iovva specimens of Diaseris 

 distorta, and Yaughan r37] describes a specimen of Cycloseris 

 from the Philippines which had ■' several sharply indented lines 

 radiating from the base." " This specimen," he .says " looks as if 

 its division in Diaseris segments had been initiated, but the 

 process not completed. The segments have i-emained attached, 

 but indications of the arrested division stiU persist. There are 

 suggestions in some of the other specimens of lines along Avhich 

 division might take place." He also says that while handling a 

 specimen of D. palchella which was circular, a segment broke out ; 

 antl therefore he considers Diaseris inseparable from Fungia. 



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