32 Mr. (i. Husk on Polijzon collected on the Const 



not unreasonably anticipate, after the wonders that geology has 

 already luailc known to ns. Animals the most isolated in ex- 

 istini; nature have been shown to be but the last of a series of 

 allied species which have lived and died upon the earth. Every 

 class and every order has furnished some examples, from which 

 we may conclude, that all isolations in nature are apparent only, 

 and that whether we discover their remains or no, every animal 

 now existing has had its representatives in past geological 

 epochs. 



IV. — Pohjzon collected by Mr. M'Andrew on the Const of 

 Norway and Finmark in 1856. By George Busk, F.R.S. & 

 L.S.* ' 



[With a Plate.] 



MOLLUSC A. 



Class rOLYZOA. 



Order I. P. Infundibulata. 



Suborder I. Cheilostomata. 



1. Fam. Caberead/E, Busk {B. M. Cat. p. 37). 



1. Caberea, Larax. (B. M. Cat. p. 37). 



1. C. Hookeri, Fleming (B. M. Cat. p. 39. pi. 38. fig. 2). 



2. Fam. Celleporad^, Busk [B. M. Cat. p. 85). 

 1. Cellepora, O. Fabricius (B. M. Cat. p. 85). 



1. C.ccrvicornis, auctor. (pars); Couch, Coraish Fauna, p. Ill, 

 pi. 19. (PI. I. fig. 1.) 



Much confusion exists with respect to this species, which I 

 have no doubt more properly belongs to Eschara. The form 

 here intended, however, which is plainly identical with Mr. 

 Couch's, and therefore most probably with Borlase's, is quite 

 distinct from the Eschara cervicornis of the B. M. Cat., and I 

 believe also from that of M. -Edwards (Sur les Eschares, p. 15. 

 pi. 1. fig. 1), though perhaps not from the form represented in 

 his pi. 2. fig. 1. The genus Eschara requires careful revision, as 

 does also Cellepora. 



* The list is arranged according: to the artififial classification adopted in 

 my Catalogue of Marine Polyzoa })ublished by tlu* British Museum, in 

 which, so far as that Catalogue at present extends, the synonymy will be 

 found. 



