314 HISTORY OP BEITISH ZOOPHYTES. 



on the coast of Ayrshire, of Arran, and of Cumbraes. It 

 has been found on shells of Lime dredged off Sana Island, 

 Mr. Hyndman. 



When I sent this many years ago to Dr. Johnston, I 

 was considerably gratified by learning from him that it was 

 new to Britain, and corresponded with the description 

 given of Cellipora annulata, by Otho Fabricius, in his 

 ' Fauna Grcenlandica/ In Greenland it would appear that 

 the cells are generally found in a solitary state. We have 

 not found them so, but we have often seen only four or five 

 together; more commonly, however, they are in a round 

 patch of about a dozen. It is a very pretty species. Otho 

 Fabricius says, " pulcherrima et perfectissima hsec omnium 

 visorum." Each cell is like a little barrel closely hooped, 

 and having transverse rows of perforations betwixt the 

 hoops. There is often a medial line from the top to the 

 bottom of the cell. The aperture gapes, and has a stout 

 rim like an upper and under lip. In many specimens there 

 is a tusk on each side of the mouth, turned up and termi- 

 nating with a knob ; and occasionally there is one, some- 

 times there are two, smaller teeth on the lower lip. The 

 colour in general is a pale brownish-red. It is at times 

 found in the inside of old shells. 



