14 LIVERPOOL BIOLOGICAL SOCIETY. 
Rytiphlea thuyoides, Harv. 
Occasionally at Puffin and Hilbre Is. (M). Marrat 
records this and the two succeeding species as 
members of the genus Rhodomela. 
R. fructiculosa, Harv. | 
Occasionally at Puffin and Hilbre Is. (M). 
R. pinnastroides, Ag. 
Locality not stated (M). 
Bonnemaisonia asparagoides, Ag. 
Isle of Man (M). 
Polysiphonia urceolata, Grev. 
On rocks, at the roots of other Alge (M and G). 
P. pulvinata, Kutz. 
Rarely at Eastham, New Brighton, and Hilbre I. 
(M) ; also occasionally at Puffin I. (M and G). 
P. violacea, Grev. 
Locality not recorded (M). 
P. elongata, Harv. 
Locality not recorded (M). 
P. elongella, Harv. 
Locality not recorded (M). In drift on Penmon 
Point, Anglesey (G). 
P. variegata, Zanard. 
Putin (G). 
P. brodiei, Grev. 
Locality not recorded (M); Puffin I. (G). 
P. byssoides, Grev. 
Locality not recorded (M); Puffin I. (G). 
P. nigrescens, Grev. 
Variable in colour, at New Brighton, Kastham, and 
Hilbre I.; common (M). Puffin I. (G). 
