125 



clear that the number of septa increases markedly with the 

 lengthening of the calicle. The larger number of septa — 268 

 and 248 — found in F. australe is undoubtedly due to the extra 

 size and length of the calicle, 55 mm. 



F. paripavoninum Alcock is apparently founded on a single 

 specimen. It has a " sessile scar of attachment but no 

 pedicle." No stress is laid on this point, and as all other 

 forms of this shape have a pedicle, it must be regarded as 

 purely accidental, until more specimens are discovered. For 

 the rest its characters are not such as would not include it 

 within the range of variation of this species. 



The species, as above constituted, has been obtained from 

 Singapore, China and Japan (Ed. and H.), Ki Islands, 129 /. 

 (tathoms) and New South Wales 120 /. (Moseley), North 

 Atlantic 994, 364 and 304 /. (Duncan), Laccadives 636 /. 

 (Alcock) and Cape of Good Hope 50 to 100 /. 



5. FLABELLUM RUBRUM. (PI. IV., figs. 22-34). 



Turbinolia rubra Q. at G., Voy. de 1' Astrolabe, Zoophytes, 

 p. 188, pi. 14, figs. 5-9 (1833). 



Flabellum rub rum, cumingii, elongatum, crassum, crenuLawm 

 elegans et profundum all Edwards and Haime, Ann. des Sc. 

 nat., 3e sen, t. IX., pp. 265-280, pi. 8 (1848) and Cor., t. II , 

 pp. 89-97 ^1857) , ^ . 



Euphyllia spheniscits Dana, Zoophytes, p. 160, pi. 6, iig. i 

 (1846). 



Flabellum irregulare Semper, Zeit. fiir wiss. Zool., Bd. 

 XXIL, pp. 242-5, pi. XVI., figs. 7-17 (1872). 



Flabellum /mmz'^rWf Moseley, Challenger Report, p. 174, 



pi. VL, fig. 6, 6a (188 1 ). 



