haplostome^. 51 



Suborder HAPLOSTOME.E Agass. 



Haploslotnerc Agass. (excl. Lucernarkt A. Ao.). Coiit. Nat. Hist. U. S., IV'. p. 167. 1862. 



Family THALASSANTHE^ Less. 



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

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

 jEginiihv Gkgexb. Zcits.. f. W. Zool., V^III. p. 258. 1856. 

 yE^iniV/ce McCu. Gymn. Charl. Harl)., p. 107. 



FOVEOLIA Per. et Les. 



Foveolia P^r. et Lks. Ann. du Mus., XIV. p. 27. 1809. 

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

 Cunina Escii. Syst. d. Acal., p. 116. 1829. 

 Ctmitia Bl. Man. d'Ac-tinol., p. 279. 1834. 

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

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

 Cunina Gegenb. Zoit. f. Wiss. Zool., p. 259. 1856. 

 Cunina McCr. Proc. Elliot See, p. 108. 1857. 



Foveolia octonaria A. Agass. 



Cunina octonaria McCr. Proc. Elliot Soc, PI. XII. 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. 



Campanrlla Bl. (non Less.). Man. d'Actin., p. 286. 1R.14. 

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

 ^Eginopsis J. Mull, (non Br.). Archiv f. Anat., p. 272. 1851. 



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

 position of the ^ginidjB and Charybdeidaa among the Hydroids was 

 not a natural one. He proposed for the reception of these groups a 

 new division equivalent to the Discophora} and Hydroids. But as he 

 considers the Ctenophonv and Hydromedusa? 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 



