A LIST OF THE ALGZ OF LAMLASH BAY, ARRAN. 69 
Tribe Delesseriez. 
Delesseria, Lamx. 
D. alata, Lamx. 
D. sinuosa, Lamx. 
D. sanguinea, Lamx. 
ORDER BoNNEMAISONIACEZ. 
Bonnemaisonia, C. Ag. 
B. asparagoides, C. Ag. 
ORDER RHODOMELACES. 
Tribe Rhodomelee. 
Rhodomela, C. Ag. 
R. subfusca, C. Ag. 
R. lycopodioides, C. Ag. 
Odonthalia, Lyngb. 
O. dentata, Lyngb. 
Tribe Polysiphoniez. 
Polysiphonia, Grev. 
P. wreeolata, Grev. 
P. urceolata, Grev., f. patens, J. Ag. 
P. violacea, Wyatt. 
P. fastigiata, Grev. 
P. simulans, Harv. 
P, nigrescens, Grey. 
P. fibrata, Harv. 
P. Brodicwi, Grev. 
P. elongata, Grev. 
P. fibrillosa, Grev. 
P. formosa (J. Ag. 1). 
 Pierosiphonia, Falk. (= Polysiphonia parasitica, Phyc. Brit.). 
P. parasitica, Schm. 
_ Brogniartella, Mlont. (= Polysiphonia byssoides, Phyc. Brit.). 
B. byssoides, Schm. ; 


ORDER CERAMIACEX. 
& Tribe Spermothamniex. 
_ Spondylothamnion, Nig. 
S multifidum, Nig. (= Wrangelia multifida, Phyc. Brit.). 
ermothamnion, Aresch. 
S. Turneri, Aresch.( = Callithamnion Turneri, Phyc. Brit.) 


SP 
