OF NEW SOUTH WALES. 325 



systems ; septa very thin, rather close, finely granular, primaries 

 broad and subentire for half the length and then like all the 

 others deeply lobed into styliform processes ; tertiaries bent 

 towards the secondaries and uniting with them close to the 

 columella. Alt. 5, diam. 4, depth of calice 4. 



The original species of this pretty coral came from the Thames 

 River, N. Zealand. Another species named C. Verreauxi, Ed. 

 & H., was described as from New Holland. This differs from 

 the foregoing in having the three cycles complete in all the 

 systems with the rudiments of a fourth. Prof. Tate has sent me 

 specimens from Port Adelaide, which bridge over the differences 

 between the species as there are the rudiments of a fourth cycle, 

 and the systems are not complete, and some specimens from 

 King's Island have the systems complete but with only three 

 cycles. All the specimens I have met are united by polyzoa 

 (Gellepora and Lepralia) and their cellular structure in fragments 

 at the base of the calices might easily mislead one into the 

 notion that there was a reticulate coenenchyma. 



Gy cilia tenella is said to come from Australia, but Messrs. Ed. 

 and H. refer it to the Cape. It is distinguished by its incon- 

 spicuous columella and three complete cycles. 



Gylicia Smithii, also referred to Australia has a finely granular 

 epitheca, well developed papillary columella, and four complete 

 cycles ; the calice is very shallow. I have not seen either of 

 these two species. Prof. Duncan refers all, except the first 

 species, to the Cape. There is evidently some confusion about 

 both the species and the habitats which I have not been able to 

 clear up. 



Ctlicia magna, n. s. PI. 4, Fig. 3, a, b, c. 



Corallum large, broadly and obliquely turbinate, and largely 

 adherent ; epitheca very solid in rugged concentric folds through 

 openings of which the slender close costae are seen at intervals ; 

 calice roughly circular, either open and shallow or narrow and 

 deep ; septa of five cycles in six systems all complete except in 

 young individuals where the higher orders are rudimentary in 

 some systems, not exsert, but sloping away from the epitheca, 



