ON THE ANATOMY OF DISTICHOPORA. 55 
recent species of the genus known, not alone in the beautiful 
bright crimson colour, but also in the form of the stem an 
branches, which in this coral is much more compressed, broader, 
and with Shas, edges, giving it rather a sword-like appearance. 
The lateral grooves containing the cells are much oe the 
polypiferous cells much smaller all 
subdivided short branc e apices of the branches which 
have been broken and reproduced are whiti we tag surface of 
many of the branches, asin D. violacea, is m r less crowded 
with convex circular elevations, or slig tt urls, tener appear 
to be hollow or blister-like, with rather thick pari 
figure 8 I give a sketch of the coral, which T a6 not rer 
as been figured before. I shall give a more minute di 
andly he a mistake about the species. No other known to 
from it. These always have pores through the centre, both gas- 
teropores and a The species is so very comm only met 
with that I a sir lined to think it is to be found on the New 
South Wales coas 
In the Bulletin of the Museum of Comparative Zoology (Cam- 
~oaed U. States) for 1868, I am informed that Count de Pourtales 
chopora. have 
not seen the paper in caine th but in the Proce. Zool. Soe. for 
1871, p. 281, Mr. W. Saville-Kent refers to an opinion given by 
the Count de Pourtales on i genus. He says that the structure 
of the calices in Dis istichopora is identical with what obtains in 
Stylaster and Allopora, with the exception that the calices are con- 
fluent. This structure is a tendency for the septa to unite and 
chamber or columella (see figs 15). In respect to the calices 
ng confluent, that Dist he same re- 
lation to Stylaster and Allopora that Lithophyllia and 
phylia do Mussa and Sym among the Astreide, 
regards the lateral and serial disposition of the calices as indicat 
ing an origin from primary alternate distal rather than 
So 
ii ‘ sects — no distinction between Mussa and Symphyllia ; the 
: nees between them, he states, being dependent on the mode of 
= which may y omy spear 
