OCYROEyE. 



25 



Kij: 



spherosonie. Tlio lateral tubes are also very attenuated, and Ijulge 

 well out Ironi the digestive cavity, as is 

 seen in a profile view from the narrow 

 side (Fig. 26). The view from the narrow 

 side shows this species to be compressed 

 to a far greater extent than anything we 

 know in Bolina ; approaching almost to 

 Mcrtcnsia. When in motion the auricles 

 are often held out extended from the body 

 (Fig. 26), one pair bending one way, and 

 the other in the opposite direction, as is 

 shown in Fig. 27 ; the outline of the body 

 when seen from the abactinal pole is nearly 

 elliptical (Fig. 27), and we have not the 

 strongly-ribbed appearance so characteris- 

 tic of the other Ctenophora\ The connec- 

 tion between, the lateral and longitudinal 

 ambulacra, forming a circidar tube round 

 the actinostome, can be traced in Fig, 28, 

 and it differs in no essential way in its 

 mode of fomiation from wdiat we observe 

 in ]>olina. 



Massachusetts Bay, and Newport, R. I. (A. Agassiz). 



Museum diagram No. 2 after A. Agassiz. 



Family OCYROE^ Less. 



Ocyroece Less. Zooph. Acal., p. 98. 1843. 



Ocyroece Agass. Cont. Nat. Hist. U. S., III. p. 292. 1860. 



OCYROE Rang. 



Ocyroe Raxg {nnn Per. et Les.). Mem. de la Soc. d'Hist. Nat., IV. p. 170. 1829, 



C>f///-06- Less. Zooph. Acal., p. 98. 1843. 



Ocyroe Agass. Cont. Nat. Hist. U. S., IH. p. 292. 1860. 



Ocyroe maculata Rang. 



Ocyroe maculata Rang. Mem. Soc. d'Hist. Nat. de Paris, IV. 1829, PI. 20, Fig. 1. 



Ocyroe maculata Less. Zooph. Acal., p. 99. 1843. 



Ocyroe maculata Agass. Cont. Nat. Hist. U. S., HI. p. 292. 1860. 



Antilles (Rang). 



Fig. 27. Lcsut'uria soon from the abactinal pole. 



Fijr. 28. Seen from the actinal pole, to show the connection of the lateral and longitudinal 

 ambulacra. 



NO. II. 4 



