285 
described Greenlandic Aurelia, in regard to the canal system and 
the form of the margin of the disc; but in the Pacific specimens 
the “velarium, margin, and lappets are heavily pigmented”, while 
in the specimens from Greenland no pigment is observed; the 
yellow colour of the living auimal has wholly disappeared; moreover 
the mouth-arms of one of the Pacific specimens are said to be, 
slightly longer than the bell radius’ , while in the Greenlandic 
specimens they do not reach the margin of the disc. I can scarcely 
believe, that the Aurelia from Greenland belongs to limbata Brandt 
(see above, p. 282); whether it is identical with the Aurelia , 
described by Bigelow as A. limbata , I do not know. 
Literature. 
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Zool. Cambridge, Mass. 
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