No. X. POLYZOA. 283 



No. X. 



POLYZOA. 

 By George Bctsk, F.R.S. 



The following list of the Polyzoa, collected on the late 

 Arctic Expedition in Smith Sound and northwards by 

 Captain H. W. Feilden, includes only about seventeen species. 

 All except three have already been described, and are well 

 known as high northern or Arctic forms. The three, which, 

 so far as I am able to ascertain, appear to be new to science, 

 are a species of Flustra, a minute species of Eschara, 

 and a third supposed new species, belonging to the sub- 

 order Ctenostomata, represented unfortunately by such very 

 scanty and imperfect specimens, that I only venture to 

 propose it provisionally. And I may remark, with respect 

 to some of the other forms, that the specimens are so covered 

 with diatoms of numerous species as to be very difficult of 

 examination. The collection is interesting, as perhaps 

 giving the highest latitude, 82°. 27' N., with which I am 

 acquainted from which a Polyzoon has been procured. 



Full descriptions and figures of the new forms will be pub- 

 lished, if allowed, in the ' Proceedings of the Linnean Society.' 



Suborder I. Cheilostomata. Bk. 



Fam. 1. Cellulariadce. Bk. 

 Genus 1. Scrupocellaria. V. Ben. 



1. S. scabra, V. B. (sp.) 



Syn. CeUarina scabra, V. Ben. ' Bull. Brux.' tab. xv., p. 7.3, figs. .3-6. 

 „ Cellularia scabra (forma typica), Smitt, ' Ofver S. Stand. Hafs 

 Bryozoa,' 1867, pp. 283 and 314, tab. xvii. fi>s. 27-34. 



