HAPLOSTOME.E. 51 



SUBORDER HAPLOSTOME^ AGASS. 



Haplostomece AGASS. (excl. Luccrnarice A. AG.). Cont. Nat, Hist. U. S., IV. p. 167. 18G2. 



Family THAL ASS ANTHER Less. 



Thalassanthece. LESS. Zooph. Aeal, p. 298. 1843. 

 Tf/alasaanthece AGASS. Cont. Nat, Hist. U. S., IV. p. 167. 1862. 

 JErjlnidiK GEGENB. Zeits.. f. W. Zool., VIII. p. 258. 1856. 

 JEyinidce McCR. Gynin. Charl. Harb., p. 107. 



FOVEOLIA PER. et LES. 



FoveoHa PER. ct LES. Ann. clu Mus., XIV. p. 27. 1809. 

 Foveolia AGASS. Cont, Nat, Hist, U. S., IV. p. 1G8. 1862. 

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

 Cunina BL. Man. d'Actinol., p. 279. 1834. 

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

 Cunina LAMK. Syst, Anim. s. Vert., III. p. 142. 

 Cunina GEGEXB. Zeit. f. Wiss. Zool., p. 259. 1856. 

 Cunina McCR. Proc. Elliot Soc., 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. 18G2. 



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. d'Actin., p. 286. 1R34. 

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

 ^Eyinopsis J. MULL, (non Br.). Airhiv f. Anat., p. 272. 1851. 



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

 position of the ^Eginidse and Charybdeidas among the Hydroids was 

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

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

 considers the Ctenophorse and Hydromedusae as the two great divisions 

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

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

 suborder among Discophorae. From the examination of the only spe- 

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



