150 



Not described by Smyth. 



Amphiprora complexa {Greg.) 

 ,, maxima „ 



Amphora quadrata „ 



,, proboscidea „ 



Denticula nana „ 



Epithemia marina (Donkiri). 



Navicula granulata {Br e"b.) 

 „ rectangulata {Grey.) 

 „ lyra „ 



Nitzchia virgata {Roper). 



Pinnularia late-striata {Greg). & 



Pleurosigma Wansbeckii (Donkiri). 



Pbofessob J. Reay Geeene, Honorary Secretary, read a paper, of 

 which the following is an abstract : — 



ON THE BRITISH SPECIES OF THE GENUS EQUOREA. 



In the late Professor E. Forbes* s " Monograph of the British Naked-eyed 

 Medusae" there occurs no mention of any species belonging to the genus 

 Equorea. Since the publication of that work, however, four British 

 species of this genus have been figured and described, viz. : — 



1 . Equorea Forshalea (Per on). First ascertained by Professor Forbes 



to be an inhabitant of the Scottish seas (vide " Proc. Zool. 

 Soc," Nov. 1851). 



2. Equorea vitrina (Gosse). 



3. Equorea Forbesiana ( Gosse). 



These two species, previously undescribed, were obtained by Mr. 

 Gosse on the coast of North Devon {vide " Devonshire Coast," pp. 340-8). 



4. Equorea formosa, described by the author in his paper on the 



" Acalephae of 'Dublin Coast" (vide "Nat. Hist. Rev.," vol. iv, 

 p. 245). 



