236 TRANSACTIONS, NATURAL HISTORY SOCIETY OF GLASGOW. 



Le Jol., and var. uncinata, C. Ag., the latter the more 

 abundant, were collected from Loch Etive. 



Order III. — Delesseriace^. 



Tribe I.— Nitophy llese. 

 Nitophyllum laceratum, Grev. 

 N. punctatum, Grev. 

 Both these species were found on islets oif Lismore. 



Tribe II.— D elesseriese. 

 Delesseria alata, Lamx. 

 D. sinuosa, Lamx, 

 D. sanguinea, Lamx. 



These three species were fairly common in almost 

 all localities where a search was made for them. 



Order V.— Rhodomelace^. 



Rhodomela subfusca, C. Ag., — Loch Etive and 

 Loch Creran. 



Odonthalia dentata, Lyngb. — Very abundant and 

 large in Loch Etive and the Firth of Lome. 



Laurencia pinnatiflda, Lamx. — Not common, but 

 generally distributed on rocky parts of the coast. 



L. obtusa, Lamx., var. genuina, Hauck.— Loch 

 Etive, in rock-pools near Falls of Lora. 



Lophothalia byssoides, J. Ag. — Common in 

 dredgings from Loch Etive. 



Polyeiphonia urceolata, Grev. — Very common, 

 'passhn. 



P. nigrescens, Grev. — Very common, passim. 



P. elongata, Grev. — On islets in Firth of Lorne^ 

 and at Achnacree, Loch Etive. 



P. flbraia, Harv. — Occasionally in Loch Etive. 



P. spinuloea, Grev.— The type form and var. major 

 are both recorded from Appin by Carmichael. 



Dasya coccinea, C. Ag. — Abundant and very large 

 on the coast generally. 



Order VI. — CEBAMiACE.a:. 

 Spermothamnion Turner i, Aresch., var. repens^ 

 Le Jol. — On Cladostephus in Loch Etive. 



