130 



MELICERTUM. 



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

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

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



Fig. 201. 



Fig. 199, 



Fig. 200 



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. 



MELICERTUM Oken. 



Melicertum Oken. Lehrb. der Naturg. 1816. 

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

 Melicerta F±r. et Les. (p. p.) ; in Ann. du Mus., XIV. p. 40. 1809. 

 Campanella Less, {non Bl.). Zoopli. Acal., p. 281. 1843. 

 Stomobrachiuvi 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. 



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



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



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



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



Campanella campanula Morch ; in Beskriv. af Gronland, 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 ch}Tniferous tube and half of the digestive cavity. 



