8 Messrs. J. Wood- Mason and A, Alcock on 



secondary septa show linear series of two or three small 

 uncinate paliform papilla. The tertiary septa have their 

 edges widely notched just below the middle of their curve, 

 the lower angle of the notch projecting as a small uncinate 

 paliform lobe ; below this they approach and are occasionally 

 fused with the secondaries. The septa of the fourth cycle are 

 thin lamellae which end about halfway down the calicular 

 wall, except in the systems in which a fifth cycle is developed, 

 .where they resemble but do not equal the tertiaries. 



Height of corallum from base to limit of epitheca '35 inch, 

 from base to edge of calice "To inch, from base to summit of 

 primary and secondary septa '90 to '92 inch; diameter of 

 calicular orifice 1"4 inch ; depth of calicular fossa '60 inch. 



The soft tissues of the polyp are very thick and fleshy ; the 

 oral disk and tentacles are a very dark purple. 



The characteristic feature in the corallum of this species is 

 the comparatively slight exsertion of those quaternary or 

 quinary septa which lie next the primaries ; usually they are 

 equally exsert with the tertiaries, and in only two systems do 

 they distinctly surpass these last in height. 



Of the paliform processes those only of the third cycle are 

 truly paliform ; these, though not very prominent, project 

 enough to form a support for the retracted oral disk. 



The form of the corallum is intermediate between the cup- 

 shaped and platter-shaped extremes figured by Professor 

 Moseley from the ' Challenger ' collection. 



From the Laccadive Sea, at 740 fathoms (Station 105). 



One fine perfect specimen. 



Madrefojraeia FvyGIDA. 



Family Fungiidae. 



Bathyactis, Moseley. 



5. Bathyactis symmetrica (Pourtalfes). 



Fungia symmetrica, Pourtales, 111. Cat. Mus. Comp. Zool. (1871), no. iv. 



p. 46, pi. vii. figs. 5 and 6. 

 Fungia symmetrica, Duncan, Trans. Zool. Soc. viii. p. 334, pi. xlix. 



figs. 1(3-19. 

 Bathyactis syjnmetrica, Moseley, ' Challenger ' Reports, vol. ii. pt. vii. 



pp. 18G-190, pi. X. tigs. 1-13. 



Three specimens of this very widely ranging deep-sea 

 Fungiid were obtained in the Bay of Bengal, 920 to 690 

 fathoms (Station 102). 



The diameter of the corallum of the largest specimen is 

 •80 inch. 



