80 BULLETIN OF TIIK 



Modeeria (Turritopsis) uutricula F. 



Tima formosa A. Aq. 



Oceania languida A. A«. 



Eucheilota ventricularis McCr. 



Cunina discoides F. 



Unknown Ephyra with sixteen tentacles. 



Tamoya punctata sp. nov. 



Eucheilota quadralis s[i. nov. 



Oceaniopsis Berniudensis gen. et sp. nov. 



Ectopleura .sp. 



Eucope sp. 



Unknown Ephyra with sixteen tentacles. 



Fig. 10. 



An Ephyra, which was at first regarded as the young of Linerr/cs, on closer 

 examination was foitnd to have sixteen instead of eight otocysts, and tlie same 

 number of tentacles. In many other respects, however, it closely resembles the 

 young Linerges. The bell is flat, disk-shaped, with a slightly raised and rounded 

 apex. The marginal lappets, which are thirty-two in number, are long and 

 flat, thin and pointed at their free extremities. When they are extended, the 

 central region of the bell, as seen from one side, appears as a slight protuber- 

 ance above the plane in which they lie. When the marginal lappets of the 

 bell are contracted, they fold under the oral side of the bell so that their tips 

 meet at a point in the centre below the mouth. The incisions which separate 

 the marginal lappets of the bell extend to two depths ; one set of incisions 

 corresponding to the position of the tentacles, and the other to that of the sense 

 bodies. The former are the deepest, and the bell margin is cleft by them in 

 such a way that the rim of the bell is divided into sixteen pairs of marginal 

 lappets. The color of the bell is a brownish yellow, in which are darker spots 

 and patches of black pigment. The mouth is simple, like that of the young 

 Linerges, and from its lips hangs a single row of small papillae, which are want- 

 ing in the Ephyra of L. Mercurius, Haeck. The adult of the Ephyra will 

 certainly be found to be a very unusual Discophore. Three genera which it 

 approximates in the number of marginal sense-bodies are Cassiopea, Collaspi.<, 

 and Atolla. From both of the last two, however, it diff"ers so widely in the form 

 of the bell and other particulars that it cannot be referred to either of them. 

 Cassiopea, which has sixteen otocysts, has no tentacles in the youngest larvae 

 studied.* The Ephyra of Linerges is easily distinguished from that described 



* The only genus to which I have been able to refer tliis Ephyra is Cassiopea. 

 Cassiopea (Poli/rlonia) frondosn is one of the most common McJusffi on the shoals 

 along the Florida Reefs, and probably is also foiuul in the Bermudas, although I 



