some British Polyzoa. 211 



Polyzoon has been dredged by me in 80-170 fathoms off 

 Shetland and also in deep water in Bergen Fiord. The late 

 Mr. C. Peach also sent me a specimen taken by him off 

 Wick, and it was also procured by the ' Porcupine ' Expe- 

 dition of 1869. 



As the species has not been figured, it is illustrated here 

 in the annexed woodcut. I have nothing to add to the 

 description which has already been given. I have pro- 

 visionally placed the species in the genus Phylactella^ as, 

 perhaps, it comes nearer to P. coUaris than to any other 

 form ; but it has little in common with the type of that 

 genus, P. labrosa. The small size of the zooecia may be 

 judged by fig. 2, which represents the outline of a zoariuni 

 which will contain forty to fifty zooecia. 



-:f\ I 



o 



2. 



1. F/iylactella pi/gmcva {l>\oi'man). 2. Size of a zoariiim. 



CelJepora surcularis (Packard). 



185G. Cellepora cervicornis, Busk, Ann. Sc Mag. Nat. Hist. ser. 2, 



vol. xviii. p. 32 ; and 1858. Men. Fossil Polyzoa of the Crag, p. 57 ; 



and 1880. Journ. Linn. Soc, Zool. vol. xvi. p. 238, pi. xiii. ligs. 6-8 



(nee Cellepora cervicornis, Johnston), 

 1863. Celleporaria surcularis, Packard, " List of Animals dredged near 



Caribou Island," Canadian Naturalist, vol. viii. p. 410 ; and 1867. 



"Obs. Glacial Phenomena of Labrador and Maine," Mem. Boston 



Soc. Nat. Hist. vol. i. p. 274. 

 18t>7. Cellepora incrassata, Smitt, " Krit. Forteck. &c.," ffifvers. K. 



Vet.-Akad. Forhaud. p. 33, pi. xxviii. figs. 212-216 (nee Cellepora 



incrassata, Lamk.). 

 1886. Cellepora cervicornis, Lorenz, Bryozoen von Jan Mayen, p. 13, 



tig. 12. 



A young specimen of this species encrusting stone and 



