CELLAEIA. 105 



pour type le Cellaria salicornia, un des plus remarquables 

 et des plus anciennemeut connus"*. It is true that he 

 has included in the genus one or two forms which are not 

 referable to this type ; but he has himself supplied us with 

 the test by which we at once recognize and reject them as 

 aliens. His genus Cellaria, according to his own showing, 

 embraces those species only which exhibit the same 

 structural features as Cellaria fistulosa. 



Instead of rejecting Lamouroux's genus altogether 

 because he has wrongly referred species to it which do not 

 belong to it, the proper course surely is to retain it for 

 the type which he has himself selected for it, and to allow 

 the foreign elements to find their place elsewhere. I 

 cannot share Mr. Busk's apprehension that it may be 

 "confounded with the more extensive Cellaria of Dr. 

 Solander " and others, as the latter has long since been re- 

 solved into its elements, and ceased to exist but as a name. 

 Were there, however, any ground for such apprehension, I 

 should hesitate on this account to set aside a genus which 

 has such undoubted priority f. Cuvier's Salicornaria was 

 published in 1817. 



Lamouroux's name has been adopted by Smitt in his 

 'Critical Catalogue ' of the Skandinavian Polyzoa; and 

 he has stated very clearly the grounds on which he bases 

 his decision J. 



In this well-marked form the surface of the cylindrical 

 internodes which compose the zoarium is divided into 

 regular, (usually) rhomboidal, or hexagonal, or oval areas 

 by the walls which close in the front of the cells. The 



* Hist. d. Pol. oor. flex. p. 1-' . 



t Mr. Busk afterwards adopted the name Cellaria (Quart. Journ. Micr. 

 Sci. (n. B). rii. p. (ft), and promised his reasons for doing so ; but he has 

 since reverted, probably through mere inadrertence, to Salicornaria (ibid, 

 viii. p. 280). 



J '(EfVersigt af Kongl. Vetenskaps-Akademiens Forhandlingar,' 1867, 

 pp. 383, 384. 



