98 THE PROCEEDINGS OF THE LINNEAN SOCIETY 



and lying upon the margin ; columella styliform, prominent, 

 central. Dimensions : tufts 20 to 25 millim. high, diam. of 

 branches 1 to 2. 



There are about 32 calices in about 10 millim. of a branch, 

 arranged in four lines on opposite sides and alternately, so that 

 the series is quincuncial. 



From a block of dead coral from Fiji. One very small tuft. 

 Museum of Hon. W. Macleay. 



Section Madreporaria perforata. Family Madreporidce, sub- 

 family EupsamndncB. 



Balanophyllia dbntata, n. s., pi. 10, fig. 1, la. 



Corallum, moderately tall, very slightly spreading towards the 

 calice which is broadly elliptical, very deep, and with a thick 

 honeycombed margin, upon which the groups of three septa 

 project to form a regularly coronate edge ; calicular fossa wide 

 and deep, septa subequal projecting very little from the wall, and 

 therefore only slightly salient into the fossa, all highly granular, 

 and with regularly dentate edges, the teeth on the third, fourth, 

 and fifth orders being long and neat near the margin, becoming 

 coarse tubercular and granular near the columella ; four cycles 

 in six systems ; primaries thick and secondaries nearly equal to 

 them ; fourth and fifth orders uniting in front of the tertiaries 

 close to the wall, the same orders closely adpressed to the 

 primaries and secondaries at their origin and projecting above 

 the edge of the calice ; columella, loose, spongy, small and 

 inconspicuous ; costae, distinct, broad, flat, very finely granular ; 

 no epitheca visible. 



The only specimen seen by me is so encrusted with Polyzoa? 

 as to make the epitheca doubtful. As however this organ is a 

 mere secretion for the protection of the coral, this function no 

 doubt was effected by the Polyzoa. The coral itself was parasitic 

 upon an Eschara from the South Coast, which is probably 

 lichenoides, M. Ed. I am not sure of the locality, but as the 

 Polyzoa are known to me as from the South Coast, the coral 

 must have come from the same locality. Amongst them was 

 what T take to be D'Orbigny's Viscoporella Sov(e Hollandice, which 



