haplostome^. 5x 



Suborder HAPLOSTOME^ Agass. 



Haplostomem Agass. (excl. Lucemarke A. Ag.). Cont. Nat. Hist. U. S., IV. p. 167. 1862. 



Family THALASSANTHEJE Less. 



Thalassantliem Less. Zooph. Acal., p. 298. 1843. 

 Thalassanthece Agass. Cont. Nat. Hist. U. S., IV. p. 167. 1862. 

 JEginidce Gegenb. Zeits.. f. W. Zool., VIII. p. 258. 1856. 

 J2ginidm McCr. Gymn. Charl. Harb., p. 107. 



FOVEOLIA Pek. et Les. 



FoveoUa Pek. et Les. Ann. du Mus., XIV. p. 27. 1809. 

 Foveolia Agass. Cont. Nat. Hist. U. S., IV. p. 168. 1862. 

 CuranaEscH. Syst. d. Acal., p. 116. 1829. 

 Cunina Bl. Man. dActinol., p. 279. 1834. 

 Cunina Less. Zooph. Acal., p. 301. 1843. 

 Cunina Lamk. Syst. Anim. s. Vert., IH. p. 142. 

 'Cunina Gegenb. Zeit. f. Wiss. Zool., p. 259. 1856. 

 Cunina McCe. Proo. EUIot Soc, p. 108. 1857. 



Foveolia octonaria A. Agass. 



Cunina octonaria McCr. Proc. Elliot Soc, PI. XH. Figs. 4, 5, p. 109. 



Cunina octonaria Agass. Cont. Nat. Hist. U. S., IV. p. 168. 1862. 



Cunina octonaria McCr. Pis. 4, 5, 6, 7, for Embryolog. Hist. ; Elliot Soc, pp. 1 -36. 1856. 



Charleston, S. C. (McCrady). 



Museum diagram No. 15, after McCrady. 



CAMPANELLA Bl. 



Campanella Bl. (non Less.). Man. dActin., p. 286. 1834. 

 Campanella Agass. Cont. Nat. Hist. U. S., IV. p. 169. 1862. 

 JEginojjsis J. Mull. Qion Br.). Ai-chiv f. Anat., p. 272. 1851. 



Fritz Miiller was the first to show (Wieg. Archiv., 1861) that the 

 position of the jEginidge and Charybdeidse among the Hydroids was 

 not a natural one. He proposed for the reception of these grouj)S a 

 new division equivalent to the Discophorae and Hydroids. But as he 

 considers the CtenophoriB and Hydromedusse as the two great divisions 

 of the Acalephs, his group of ^ginese would hold very nearly the same 

 rank as that which we are induced to assign to it here, — that of a 

 suborder among Discophora?. From the examination of the only spe- 

 cies of Campanella thus far found on our coast, and a comparison 



