FAUXA OF THE ISLES OF SCILLY. 125 



Margcllium octopunriatum^ Sars. A solitary sppcimeii -with 



medusa-buds. 

 Pcrigonimus. sp. ? All just liberated from liydroids, and too 



young for the identification of the species. 

 Sarsia. sp. ? This solitary specimen had not long- been liberated 



and was too young for identification. 



Leptomedus.e. 



Cltjtid Johnsto7ii, (Alder). The specimens had just been liberated 

 from the hydroid. Phial id iunt tcmporariiim is probably the 

 adult form. It is somewhat remarkable that on both 

 visits the two commonest medusa? in the British seas, 

 namely Phialidium temporarium and Pkialidium cymlaloideum 

 were not taken. 



EuchiJota piloseUa. Either very early or intermediate stages. The 

 largest about 15 mm. in diameter. 



EuchiJota. nov. sp. A good series from the earliest to the adult 

 stage was taken. This medusa had been jjreviously taken at 

 Plymouth. A descrijition of the species is in preparation. 



Laodice calcarata. A very early stage with four tentacles was 

 taken on May 9th. Umbrella 11 mm. in length. An inter- 

 mediate stage, 12 mm. in diameter, was captured on May 

 12th. 



Phialidium husldanuin. Only early and intermediate stages. 



Ohi'lia. sp. ? All were very minute and had not long been 

 liberated. 



The scarceness of the Medusae is easilv seen from Table II 

 and is due to the lateness of the season, for nearly all the sjieci- 

 mens were either early or intermediate stages. 



SiPHONOPHOKA. (Tahle I.) 



Vupulita sanii. sp. ? Not a single complete colony was taken, 

 but many detached swimming bells and a few fragments. 



CTENOPHOEA. 



Bolina norvegica, (Sars). sp. V A very early stage. 

 Beroe ovata, Eschscholtz. A very early stage, about 1 mm. in 

 length. 



