348 INVERTEBRATA OF MASSACHUSETTS. 



AURE V LIA AURI N TA, MULL.; Zool. Dan., tab. 76,77. Encyc. Meth., pi. 

 94, f. 1 - 3. 



This is our common Sun-fish or Sea-jelly, well known to all 

 who are familiar with the sea in July and August. I could never 

 perceive any tingling sensation from handling it. 



FLAVl'DULA ? PERON and LESUEUR. 



A small species, of a rusty -yellow color, about the size of an 

 English shilling ; the margin divided into eight moderately deep 

 scollops, all of which are fringed with long ciliae. Its surface 

 appears granulated. Observed abundantly in March. 



AURE'LIA - . Another species, about two thirds the 

 size of the preceding, in which the scollops are 

 much less conspicuous, while the little flaps be- 

 tw'een them are more developed ; the ciliae are 

 shorter, and the tentacula about the mouth seem 

 to be united into a tube spreading a little at its ex- 

 tremity. Found a little later. 



EPHY V RA OCTOLOBA N TA ? BLAINV. ; Man. d'Actin., 273, pi. 36, f. 3. 



About one fourth of an inch in diameter, of a rusty- 

 yellow hue, having eight lobes, the divisions between 

 which extend half way to the centre ; each of these 

 lobes is again divided by a deep fissure ; margin not 

 ciliated. Found with the preceding. 



OCEA'NIA TUBULO'SA, SARS ; Bcskr. ov. Polyph., 25. 



A perfectly hyaline, balloon-shaped animal, about the 

 size of a pistol-bullet. It is open at the bottom, and has 

 four threads hanging from the margin, and from the centre 

 a club-shaped tube, all of which are capable of great ex- 

 tension. Its motions are very rapid. Found in April 

 and May. 



E BUGAINVI'LLH, BRANDT; Schirmquallcn, pi. 20. Pe- 

 tersburg Trans., ii. 



Another rather large, balloon-shaped animal, of a bluish tint, 

 having four tufts of cilise attached to the margin, and a cross-shaped, 



