13 Mr. S, V. Wood's Catalogue of the Zoophytes jrom the Crag. 



The disc of this coral is partially bisected by a central style, 

 around which are arranged twelve rays, each ray composed of 

 three lamellae, which converge to a point as they approach the 

 circumference. In the intervals formed by the divergence of 

 these rays are placed twelve other rays also tripartite, and the 

 smaller spaces between the terminations of these twenty-four rays 

 are each bisected by a single plate. One in every three of the 

 thirty-six lamellse attached to the style is elevated above those 

 contiguous to it. From the extreme rarity of unmutilated spe- 

 cimens, I am unable to state whether the number of rays be con- 

 stant in this species, but its form varies so greatly that I should 

 presume some variation in the number of its parts to be very 

 probable. It is occasionally much depressed, the base spreading 

 to more than twice the diameter of the disc ; sometimes it is a 

 reversed cone, the disc exceeding the base tenfold, such variation 

 appearing to depend upon its place of attachment ; it often occurs 

 much elongated, generally single, never branched, though occa- 

 sionally three or fom* individuals are grouped together. 



The lamellse appear promiscuously arranged where the disc 

 is much injured, which is generally the case with crag specimens. 

 The species is also found in the tertiary formation of Touraine : 

 a specimen in my possession, from this locality, has a portion of a 

 thin periostraciun remaining upon the exterior. 



Cor. Crag. Red Crag. Recent. 



1. Fungia semilunata, Lamk. (2nd edit. Hist, des An. sans Vert. 

 vol. ii. p. 371). 



Iken. I I 



I am only acquainted with tv/o specimens of this species, one 

 in the cabinet of Mr. Bunbury, and the other in the possession 

 of Mr. Wm. Colchester. 



1 . Turbinolia Milletiana, De France {Diet, des Sci. Nat. vol. Ivi. p. 93. 



Turbinolia ? Taytur, Mag. Nat. Hist. vol. iii. p. 272. 



f. 60. c). 



Sutton. I Sutton. | 



1 . Cladocora cariosa, Lonsdale MS. (Madrepora cariosa. Gold/. Pet. 

 t. 8. f. 8 ; De Blainv. Diet, des Sci. Nat. t. 60. p. 355). 

 Ramsholt. | Sutton. | 



Class BRYOZOA. 



Fam. Crisiad^. 

 Cor. Crag. Red Crag. Recent. 



1. Crisia eburnea, Lamx. {Expos. M^tk. de Pol. p. 6 ; Johnston, Brit. 



Zooph. p. 262. pi. 31. f.3,4). 



Sutton. 1 I Britain. 



2. — luxata? Flem. {Johnston, Brit. Zooph. p. 262. pi. 31. f. 5, 6). 



Sutton. I I Britain. 



