100 TEANSACTIONS LIVEEPOOL BIOLOGICAL SOCIETY. 



Isthmoplea sphcerophora, Kjellm. 



Puffin I. ! 

 Pylaiella litoralis, Kjellm. 



Puffin I.!, I. of Man! 



Order VI. — AETHEOCLADiACEiE . 

 Arthrooladia villosa, Duby. 

 Anglesea. 



Order VII. — Elachistace^e . 

 Elachista scutulata, Duby. 



I. of Man. 

 E.fucicola, Fries. 



Puffin I. !, Anglesea !, Hilbre I. !, I. of Man ! 

 E. flaccida, Aresch. 



Penmon Point ! 



Marrat records this species on Cystoseira barbata 

 at Puffin I., though the host plant does not 

 occur in his list nor on the island. 

 Order VIII. — Sphacelaeiace^e. 

 Sphacelaria radicans, Harv. 



Mersey, New Brighton, Hilbre I.!, Puffin I.!, 



I. of Man ! 

 A specimen which I collected in Nov., 1890, at 

 Hilbre I. is, I am informed by Mr. Batters, a 

 monosiphonous variety of this species. 

 S. cirrhosa, C. Ag. 



Eastham, Hilbre I. !, Puffin I. !, I. of Man ! 

 vsiT.fiisca, Holm, et Batt. 

 (S.fusca, Report I.) 



Hilbre I. !, Puffin I. !, I. of Man, Anglesea. 

 S. plumigera, Holm. 



Carnarvon (fide Holmes). 

 Chcetopteris plumosa, Kiitz. 



I. of Man !, Anglesea, Hilbre I. !, Puffin I. ! 



