354 



BULLETIN OF THE BUREAU OF FISHERIES 



Although Aglantha abounds on or near the surface in Arctic Seas its usual habi- 

 tat in the Gulf of Maine is at some deeper level, with only six of our sixty-odd locality 

 records for it from surface hauls; 94 but, although it so seldom rises quite to the top of 



X o> 



Fio. 99.— Occurrence or the trachomedusa Aglantha digitale. ©. locality records, July to October; O, October to February; 

 X, February to July. The hatched curve incloses the chief zone of occurrence for this species in the Gulf of Maine 



the water in the gulf, we have occasionally taken it at not over 15 meters depth, 

 often in tows from 50 or 60 meters, and usually within 150 meters of the surface. 



N Aglantha has also been found on the surface at Woods Hole by Hargitt (1905). and at Nahant in Massachusetts Bay by A. 

 Agassiz (1865). 



