HISTOIRK DES HYDROIDES 



331 



Obeiia longissima 



Encore polyslijla 

 Obelid longissima 

 Eucope poli/styla 

 Obeiia longissima 

 Eneope polystyla 



Obeiia polijstgla 



Obeiia longissima 



Obeiia polystyla 

 Campan u laria long iss ini a 

 Obelaria polystyla 

 Obeiia longissima 



Obeiia marginata 



Obeiia pyrif'onnis 



Obelaria p y ri for m is 

 Obeiia pyriformis 

 Europe pyriformis 



Obeiia plicata 



Ohelîa marginata Alliiiaii. 



Allman 1877 (b) p.9, 12, pl.6,lig. 1, 2. 



Clarke 1879 p. 239, 241, 243. 



Ohelia pirifonnis (A. Agassiz). 

 Voir : Matériaux IIL p. 342. 



Vbrrill 1873 (a) p. 334, 390,393, 478, 



484, 489, 727. 

 Hjîckel 1879 p. 176. 



H.ECKEL 1879 p. 176. 



Agassiz, A. 1880 (a) p. 484. 



Ohelia plicata Hiiicks. 



