306 Rev. T. Hincks on the 



distinct and curious variety. This species is not noticed by 

 Heller, nor is it included in Waters's Naples Catalogue. 

 Range. Florida j Port Phillip Heads, Victoria. 



Ehtnchopora, Hincks. 



Ithynchopora hispinosa, Johnston. 



Range. Britain ; Australia ; South Australian Tertiaries. 



Retepora, Imperato. 



^ Retepora cellulosa^ Sraitt. 



Heller records R. ceUuhsa as occurring in the Adriatic ; but 

 judging from his brief description it is difficult to determine 

 the form which he had in view. The only species contained 

 in Dr. Pieper's collection I believe to be the true R. cellalosa 

 of Smitt, which occurs both in the Scandinavian seas and in 

 the Mediterranean. It is very desirable that this specific name, 

 which has been variously applied by the earlier writers, 

 should be used at last in a definite sense, and we cannot do 

 better than restrict it to the present form which has been 

 so thoroughly characterized by Prof. Smitt in his classical 

 monograph on the Northern Polyzoa. 



Family Celleporidse. 



Cellepoea (part.), Fabricius. 



Cellepora avicularis, Hincks. 



Range. Britain ; Arctic seas ; coast of North America ; 

 Naples. 



Cellepora sardonica, Waters. 



Range. Naples. 



Cellepora rettisa, Manzoni, var. caminata, Waters. 

 (PL IX. fig. 5.) 



Hah. Forming small globular masses on weed. 



The form recorded by Waters in his Naples Catalogue 

 under the name C. retusa, var. caminata, occurs in the 

 Adriatic. He subsequently identified it with C. costata, 

 MacG.*, and more recently has placed amongst its synonyms 

 C. glohvlaris, Bronn, and C. rota, MacGr. I have not Man- 

 zoni's ' Castrocaro ' paper, in which C. retusa is described, 

 at hand, and accept the identification of the Naples and 

 Adriatic form with it on Mr. Waters's authority. It seems to 



* " Bryozoa from Aldinga, &c. South Australia," Quart. Jom-n. Geol. 

 Soc. Aug. 1885, p. 303. 



