BRITISH ZOOPHYTES. 185 



Some of the systems have not the plates of the fifth 

 cycle. 



The corallum has a series of ribs outside, prominent 

 on the upper half. The animal itself is like an ordinary 

 anemone, and is able to expand itself considerably 

 above and around the corallum. The columella is very 

 distinct, as are also the palules, which form an inner 

 series between the plates proper and the columella. 



The tentacles number about 50, in three rows. The 

 head of each is opaque white, covered with palpocils, 

 and the stem is covered with warts, generally of a 

 chestnut colour. 



C. Smithii is found firmly attached to rocks in deep 

 water. Mr. Couch {" Cornish Fauna," iii. 72) states 

 that there is scarcely a stone drawn from deep water 

 but has several specimens attached to it. 



Genus II. Paracyathus, M. Edwards and Haime. 



Corallum turbinate or cylindrical, with a permanently 

 adherent expanded base. Palnles in 2 or more circles. 

 Plates nearly equal in 4 or 5 cycles and 6 systems. 

 Ribs distinct, straight. — GossE. 



Mr. Gosse refers the three following species to this 

 genus with some hesitation. They were all described 

 by him for the first time in his " Actinologia Britan- 

 nica.'^ 



1. P. TAXiLiANUS, Gosse. "The Moray Cup Coral." 

 Hab. : Moray Firth. Height -21— -14 in. 

 Animal unknown. 



Described by Mr. Gosse from a single specimen. 

 "The plates are in 5 imperfect cycles ; calyx elliptical ; 

 ribs notched above, granulous below. ■'^ 



2. P. Thijlensis, Gosse. " The Shetland Cup Coral.'* 



