OF NEW SOUTH WALES. 335 



Cape Three Points and off Port Stephens, 70 fathoms. Worn 

 specimens sometimes washed up at Manly Beach and Wol- 

 longong. Always attached to shells {Bittium, Turritella, and 

 small Mitres) except when the pedicel was broken. A species 

 very distinct from any of our tertiary fossils. Its broad and 

 solid cup and generally curved form are very characteristic. 



It will be remarked that I have figured one of the specimens 



with a conspicuous boss on the side. This may be a bud, and if 



so the species will have to be transferred to Dendrophyllia. The 



general character of the corallum and the septa is not in favor 



of such a conclusion. 



Balanophyllia seminuda, Duncan. 



The corallum has a wide base with a constriction immediately 

 above it, and is cylindrical, but slightly wider at the calice than 

 elsewhere ; the epitheca is very dense for half the distance up 

 the corallum and is wanting elsewhere ; the costas, invisible 

 below, are distinct where the epitheca does not exist above ; they 

 are formed by vermiculate projections. ; the calice is circular in 

 outline ; its margin is thin, except at the origin of the primary 

 and secondary septa, where it is thick and cellular, and its fossa 

 is very deep ; the septa are unequal, exsert, curved above, and 

 more or less vertical at their inner edge ; they are marked with 

 ridges, which are directed inwards and upwards, and with endo- 

 thecal ridges crossing the first kind ; the primary septa are stout 

 and very exsert, and the secondary septa are smaller and less 

 prominent ; the tertiary septa, after their union with those of the 

 fourth cycle are very stout and reach the columella ; the septa of 

 the fourth and fifth orders join the tertiary about half way to 

 the columella; the columella is small and spongy, and is situated 

 very deeply in the fossa. Height of the corallum 8-10 inch, 

 breadth of the calice 3-10 inch. 



Locality : Hamilton Tertiaries, Victoria. 



Balanophyllia armata, Duncan. 

 The corallum is subcylindrical, tall, compressed, and armed 

 with a wing-like projection immediately above either side of the 



