33 THE OCEANIC HYDROZOA. 



Suh-genus GALEOLARIA [Lesueur and I)e Blainville). 



Distinguished from the other species of the genus Diphyes by the obsoleteness of the 

 hydrceciura of tlie proximal nectocalyx. 



Galeolaria FiLiFORMis. PI. Ill, fig. 5 ; and PI. XII. 



Physophora filiformis, Delle Chiaje. 



Galeolaria, Lesueur, De Blainville, 1830. 



Sulculeolaria guadrivalvis, idem. 



Beroides, Qnoj and Gaimard. MSS. cited in Lesson's 'Acalephes,' 1843. 



EpibuUa aurantiaca, Vogt, 1851. 



— filiformis, Leuckart, 1853. 

 Galeolaria aurantiaca, Vogt, 1854. 



— filiformis, Leuckart, 1854. 

 Biphyes guadrivalvis, Gegenbaur, 1851. 



I have only obtained a single detached distal nectocalyx of this species, and I must 

 therefore borrow a brief description of its most important characters from other observers, 

 more especially Leuckart and Gegenbaur. 



Originally described by Delle Chiaje (' Descriz. et Notom.,' t. v, p. 135), and confounded 

 by him with Forskiil's Fkpoi^ltora filiformis, subsequently termed by Quoy and Gaimard 

 " Beroides," one or more species of this genus formed the basis of two genera, Sulculeolaria 

 and Galeolaria, founded by Lesueur, and adopted and published by De Blainville in his 

 manual. De Blainville arranges both genera among his Biphjdce, and rightly suspects that 

 Sulculeolaria may be only an organ ; but with respect to the Galeolaria, he hazards the unac- 

 countable suggestion that " these animals differ essentially from the Biphyda, approaching the 

 Beroidce!' 



The Biphjes truncata, so well described by Sars ('Fauna litt. Norv.,' 1846), is clearly 

 a Galeolaria, but the Norwegian naturalist appears to have been unacquainted with 

 De Blainville's manual, and hence has not referred to that genus or to Suladeolaria. 



Vogt observed the Galeolaria and Sulculeolaria forming one animal, which Me described, 

 at first, under the title of EpibuUa, the name which Eschscholz had mistakenly conferred upon 

 the Lamarckian TlMzophjm {Phi/sojjJiora filiformis, Forskiil). Subsequently, Vogt adopted the 

 name of Galeolaria, and Leuckart follows his example. Gegenbaur is inclined to suppress 

 both Galeolaria and Sulculeolaria, and calls his Galeolaria a Biphyes. But the difference 

 appears to me amply sufficient to warrant at least a subgeneric distinction. 



