130 



MELICERTUM. 



ovaries are frill-like lobes (Fig. 200), passing from one side to the otlier 

 of the chymiferous canal ; the chymiferous tubes are slender, and ap- 

 pear lilve four dark-violet threads, connecting the different lobes of the 



ovaries. (Fig. 201.) The digestive cavity reaches about two thirds of 

 the length of the chymiferous tubes ; it is very flexible, but scarcely 

 contractile (Fig. 201), ending in four large lobes, capable of extend- 

 ing far beyond the main wall of the digestive cavity ; the veil is large, 

 leaving an opening of half the diameter across the circular tube. 



Gulf of Georgia, W. T. (A. Agassiz). 



Cat. No. 286, Gulf of Georgia, W. T., 1859, A. Agassiz. 



MELICEETUM Oken. 



Melicertum Oken. Lehrb. der Naturg. 1816. 

 Melicertum Aga8S. Cont. Nat. Hist. U. S., IV. p. 349. 18G2. 

 MeUcerta Per. et Les. {p. p.) ; in Ann. du Mus., XIV. p. 40. 1809. 

 Campanella Less, (iwn Bl.). Zooph. Acal., p. 281. 1843. 

 StomohracMum Forbes (non Br.). Naked-eyed Medusae, p. 30. 1848. 



Melicertum campanula Esch. 



Melicertum campanula Esch. Syst. der Acal., p. 105. 1829. 



Melicertum campanula Agass. , Cont. Nat. Hist. U. S., IV. p. 349. 1862. 



Melicertum campanula A.. Agass. ; in Proc. Bost. Soc. Nat. Hist., IX. p. 96, Figs. 18, 19. 



MeUcerta campanula Per. et Les. ; in Ann. du Mus., p. 40. 1809. 



Medusa campanula Fab. Fauna Gronlandica. 1780. No. 360. 



Medusa campanulata Bosc. Hist. Nat. d. Vers., H. p. 170. 



Campanella Fabricii Less. Zooph. Acal., p. 281. 1843. 



Campanella campanula Morch ; in Beskriv. af Grdnland, p. 95. 1857. 



This Medusa, first mentioned by Fabricius, has, like many others so 

 characteristically described by him, escaped notice entirely, till it was 



Fig. 199. The bend of a contracted tentacle. 



Fig. 200. A portion of the genital organs. 



Fig. 201. One chymiferous tube and half of the digestive cavity. 



