132 THE PROCEEDINGS OF THE LINNEAN SOCIETY / 



Dtmedin Museum, sent me some corals which he had collected at 

 Auckland, Wellington, &c. I propose to describe two of them 

 here, together with a small one from the north-east coast of 

 Australia. The first was found on some old metal near the slip 

 at Wellington, therefore may have been introduced But it 

 should be mentioned that the metal is lead and not copper, and 

 probably not from a ship's bottom. It has been proaounced by 

 some naturalists of experience in corals, to be a worn specimen of 

 Cylicia Smithii, but this it cannot be for the folloH^ing reasons : 

 The calices have no epitheca, but very distinct c^sta. There is 

 no columella, but the septa meet in the centre and throw up long 

 slender processes which are like a columella Avhen seen from 

 above. Many of the calices are cemented l/y a very compact 

 granular coenenchyma, which rises almost /o the edge ; and 

 finally the calices in this specimen, though b/bken, are not worn 

 as the most delicate of the slender processes from the septa are 

 unbroken. The false coenenchyma is pecu^ar, but still I think 

 not of generic importance, for like the ejitheca, it seems to be 

 secreted or not according to the exigence/ of the animal. This 

 is one of the facts which tend to show that the whole group 

 of the Astrangiaceoe needs revision, ^here is also a marked 

 peculiarity in this genus, which is that /he calices seem to have 

 grown by throwing out another cali'ular margin above and 

 outside the old one, through which th/ septa are continuous, so 

 that the old margin forms a crescent^ line of endotheca within. 

 This new wall rises on the higher sid^ and gradually slopes and 

 unites with the lower side, so as not o be seen there. I am not 

 aware that the species has been hitlerto described, and I there- 

 fore propose to dedicate it to my learijSd friend Capt. Hutton, whom 

 I am happy to acknowledge, as ^e of the most zealous and 

 industrious naturalists. of the Soutbrn Hemisphere. 



Cylicia Huttoni. flate 12, fig. 1. 



Corallum very short, only sligby inclined, and regularly and 

 broadly oval ; no epitheca, but ? false exotheca, compact, and 

 granular, often uniting the calicC, and completely filling up the 

 space between them ; costa disfci,ct, broad, flat, granular, corres- 



