HYDROIDS FROM VANCOUVER ISLAND 151 



Campanularia raridentata Alder. — (p. 32.) Specimens 

 from Departure bay and from material obtained by Mr. Taylor, 

 from the Queen Charlotte islands, were found growing on fucus 

 holdfasts. 



Campanularia urceolata Clark. — (p. 33). Apparently very 

 abundant at Queen Charlotte islands, as, in the material collected 

 by Mr. Taylor as well as that collected by Mr. Spreadborough, 

 the colonies growing over other hydroids were numerous. It 

 was quite plentiful in the Dodds Narrows material, growing on 

 Abietinaria filicula and at Port Renfrew on Eudendrium calif or- 

 nicum. 



Campanularia verticillata (Linnaeus). — (p. 33). The best 

 specimens were obtained by Mr. Taylor from Queen Charlotte 

 islands; those from Dodds narrows were badly broken up and 

 there were not many of them. 



Campanularia volubilis (Linnaeus). — (p. 34). Rather 

 scarce in both Banks Island and Ucluelet material. 



Clytia edwardsi (Nutting). — (p. 34). Abundant, growing 

 on the laminaria in shallow water east of the station in the bay. 



Eucopella everta (Clark). — (p. 37). At Port Renfrew this 

 species was growing on a small stalked ascidian and in Departure 

 bay on laminaria in company with Sertularella turgida. 



Gonothyr^ea clarki (Marktanner-Turneretscher) . — (p. 37). 

 This species and Clytia edwardsi are the commonest of the Cam- 

 panularian species in the Departure Bay neighbourhood. 

 This does not signify that they are found together. Clytia 

 edwardsi is found almost entirely on laminaria within the bay; 

 Gonothyraa clarki is found growing on the smaller algae in tide 

 pools in more exposed locations, e. g. on the outlying rocks at the 

 east and the west of the entrance of Hammond bay. 



Obelia borealis Nutting. — (p. 38). Plentiful in the Ucluelet 

 material. 



Obelia dichotoma (Linnaeus). — (p. 38). Not very plentiful 

 in Departure bay. Specimens obtained from Newcastle island. 



Obelia dubia Nutting. — (p. 38). Not common though found 

 in small quantities at Ucluelet, Dodds narrows, Departure bay, 

 and later at Queen Charlotte islands. 



Obelia griffini Calkins. — (p. 39.) But one colony found at 

 Departure bay. 



24853—10 



