302 THE PROCEEDINGS OF THE LINNEAN SOCIETY 



before the secondary septa only, and some almost styliform and 

 more exsert than others ; they are with the septa only faintly 

 granular occasionally and never spinously granular (echinule) as 

 stated in the case of G. sulcatus. 



Seven specimens of this very interesting coral were dredged 

 by Mr. Macleay, off Port Stephens, at 71 fathoms. The average 

 size of all the specimens, 6| millim., with a diam. at the calice 

 of 3-|.* It is in all respects a Turbinolia with pali, instead of a 

 columella. It most resembles T. Fredericiana, Ed. and H. in 

 the form and in the costse being a cycle in advance of the septa, 

 but the junction of the tertiary with the secondaries is not by 

 sloping towards them, but by bending round and thickening. It 

 is, as already observed, common at Port Jackson. 



Conocyathus cyclocostatus, nobis. See Proc. Boy. Soc, N. S.W., 



1877. 



Conocyathus fenestratus, nobis, loc. cit. 



Conocyathus compressus. n. s. Plate V, fig. 1, a & 6. 



Corallum cuneiform, very much compressed at the base, which 

 is sometimes pointed. No trace of adhesion. Calice narrowly 

 elliptical and shallow ; septa in six systems of four cycles, very 

 slightly exsert, rounded and almost grooved and serrated at the 

 edges ; all the orders quite straight, primaries and secondaries 

 equal ; pali equal, tall, thin, rounded and before all the orders 

 except the last, and form a compact mass in the centre with the 

 septa ; costas distinct to the base and in cycles corresponding 

 to the septa; primaries and secondaries distinct to the base, 

 tertiaries arising a very short distance above them, fourth and 

 fifth orders a third of the height from the base ; all smooth or 

 very faintly granular. Intercostal spaces shallow, not apparently 

 pitted. Alt. 8-10. Maj. axis 6^-7, min. axis 3^-4. mil. Off Port 

 Stephen's, 71 fathoms. W. S. Macleay. 



* I have since met specimens double the size given. Professor Duncan has named 

 the New Zealand specimens C. Zealandia', and I have no doubt they are identical with 

 ours. 



