318 TUKBINOLTAD,E. 



Size. 



Diameter of long axis, "31 inch ; of short axis, - 24 ; height *21 to '14, 

 unequal because the corallum is built partly on a shell and partly on a 

 Serpula tube adhering to it. 



Animal. Unknown. 



Locality. 

 The Moray Firth ; deep water. 



It is with some doubt that I refer this and the two 

 following species to the genus Paracyatlms. Generally 

 agreeing with its characters, they all have the peculiarity 

 of the union of the palules into a horizontal perforate 

 platform, which does not appear to be the case with any of 

 the hitherto described species. 



The single specimen on which the above description is 

 founded was forwarded to me by my kind friend, Mr. 

 Gregor, of Macduff, who obtained it from deep water. 

 It is affixed to the inside of an old valve of Cyprina 

 Islandica, and has the appearance of being recent. 



The only species of Paracyathus with which this is likely 

 to be confounded is the fossil P. crassus of the London Clay ; 

 but from this it may be distinguished by the union of the 

 palules, by the ribs being proportionally thinner and more 

 remote, and by the diversity of their upper and lower 

 portions. 



Paracyathus is derived from irapa, near, and /cvado?, a 

 cup (the element of Cyathina). I have assigned a specific 

 name from Taxilium, the ancient appellation of the pro- 

 montory now called Kinnaird's Head, off which the specimen 

 was taken. 



Caryophyllia. 



Taxilianus. 



crassus. 



