44 On the Polyzoa of Queen Charlotte Islands. 



timber, &c., in the diffusion of the species, apart from the 

 general laws which preside over the distribution of life. 



Further light will no doubt be thrown on the relations of 

 the Polyzoan fauna of the Islands when we know more of the 

 history of the group of new forms recorded in this Report. 

 We may venture, I think, to say, that they are not to any 

 large extent Arctic. Are they southern coast-line emigrants, 

 or do they occupy their original home ? 



EXPLANATION OF PLATE IX. 



Fig. 1, ? Porella aryentea, n. sp. 



Fig. 2. Schizoporella torquata (D'Orbigny), Larnx. 



Fig. 3. Cellepora ? n. sp. (brunnea) ; a cluster of zooecia, showing one of 

 the mai"2:inal decumbent cells. 



Fig. 4. Lagenipora spimdosa, n. sp. ; erect form, nat. size. 



Fig. 5. Tuhulipora Dmosoni, n. sp., nat. size. 5 a. Portions of tlie stem 

 showing the offsets from the dorsal surface, by which the zoa- 

 rium is attached. 5 b. Portion of a branch, showing the dispo- 

 sition of the zooecia. 5 c. The extremity of a branch, showing 

 the cellular capitulum and several of the scattered central 

 zooecia. 



Fig. 6, Tubulipora fascicuUfera, n. s^. ; porlion of the zoarium, showing 

 the arrangement of the zooecia. 6 a. A colony, nat. size. 



Fig. 7. CeUaria mandibtdata, n. sp. ; avicularian cell. 7 a. Nat. size, 

 showing a peculiarity in the ramification. 



Fig. 8. 3Ienipea compacta, n. sp. ; fi-ont view of an intemode. 8 a. 

 Dorsal surface. 



