86 MARINE ANIMALS OF MASSACHUSETTS BAY. 



to be caught safely in that way, so, while one of us moves the 

 net gently about, to keep him within the space enclosed by it, 

 another slips the glass bowl under him, lifts it quickly, and there 

 is a general exclamation of triumph and delight,- -we have him. 

 And now we look more closely ; yes, decidedly he is a novelty as 

 well as a beauty. (See Fig. 122, Ptychoyena lactea A. Ag.) Those 



Fig. 122. 



white mossy tufts for ovaries are unlike anything we have found 

 before (Fig. 123), and not represented in any published figures 

 of Jelly-fishes. We float about here for a while, hoping to find 

 more of the same kind, but no others make their appearance, 

 and we keep on our way to East Point, where there is a capital 

 fishing ground for Medusas of all sorts. Here two currents meet, 

 and the Jelly-fishes are stranded as it were along the line of 

 juncture, able to move neither one way nor the other. At this 

 spot the sea actually swarms with life ; one cannot dip the net 

 into the water without bringing up Pleitrobrachia, Bolina, Idyia, 

 Melicertum, c., while the larger Zygodactyla and Aurelia float 

 about the boat in numbers. These large Jelly-fishes produce a 

 singular effect as one sees them at some depth beneath the water ; 



Fig. 122. Ptychogena, natural size. 



