46 



BRITISH HYDROID ZOOPHYTES. 



A Hydroid. 



(a). — The receptacle of 

 which is furnished with a 

 door or lid. 



(b). — Receptacle en- 

 larged. 



(c). — Lid or 'operculum.' 



Branches are annulated 

 in the lower parts. This 

 zoophyte is long and 

 slender and of a switch- 

 like character. It is 

 trawled in shallow or 

 deep water, and is rather 

 common. 



Eudendrium rameum, 



Pallas. 



2 dry specimens, 2 specimens 

 in liquid. 



specimens This species 

 8, 9, 10, 11. has been 

 aptly compared with an 

 old weather-beaten tree. 

 The main stem and 

 branches are thick and 

 strong, being formed of 

 many tubes adherent to- 

 gether. The terminal 

 shoots consist of single 

 tubes which are short. 

 The polypary is 

 slightly ringed in 

 places ; the gonophores 



