OF NEW SOUTH WALES. 327 



costal spaces, not very salient, but from about the middle down- 

 ward developing into long buttresses which are adherent to the 

 support ; calice circular, deep, margin in one plane or very 

 slightly inclined ; septa not exsert, but sunken, in five systems of 

 four cycles complete in each system ; they are close, thin, the 

 three first nearly equal, irregularly lobed and granular, the third 

 orders often, the 4th and 5th always represented by a series of 

 oblique styliform projections from the wall ; primaries and secon- 

 daries descending perpendicularly ; in the centre two or three 

 styliform processes quite similar to the lobes of the septa from 

 the columella. Alt. 6, diam. from 3 to 6 millim. 



This singular coral which is referred to the genus Cylicia, was 

 found amongst the collections of the late W. S. Macleay, with no 

 locality indicated. But as all the specimens, about 15 in number, 

 were encrusting a small piece of sandstone of the kind found at 

 Port Jackson, and as there were many species of Polyzoa upon 

 the stone, such as are living in the same place, I have very little 

 doubt that the specimens came from somewhere near Sydney 

 Harbor. Among all the specimens only one of them showed the 

 remarkable buttress-like ribs. This gave it a resemblance to the 

 British Paracyathus pteropus, Gosse. Even in this case they were 

 only on half the corallum. The rest of the specimens were so 

 encrusted with Polyzoa, (chiefly Lepralia) that these interesting 

 organs could not be made out on them. It is further worthy of 

 remark that the costse though not corresponding with any of the 

 septa were lobed like them ; the styliform character of the higher 

 orders of septa made their separation from the columella difficult, if 

 not merely arbitrary. 



Fifth Family of Madeporaria aporosa. — FuNGiDiE. 



In the previous groups we have been dealing with families in 

 which the interseptal spaces were open throughout, (Turbinolidce, 

 Dasmidce) or were crossed at regular distances by lamellar 

 traverses (Oculinidce, Asireidce). The Fungidce have a different 

 character which is that the lateral faces of the septa develope 

 bosses or tubercles which approach the opposite septum and a 



