Cystoseira barbata

Chylocladia clavellosa, β sedifolius

Dasya ocellata

Ceramium decurrens

Gelidium corneum / var. pulchellum

Chaetophora endivaefolia

Ceramium nodosum

Ceramium ciliatum β acanthonatum

Chylocladia articulata

Conferva ulothrix / parasitic

Callithamnion versicolor

Schizonema Wyattiæ

Laurencia pinnatifida / v. angusta

Lyngbya flacca

Conferva carnea

Polysiphonia simulans

Griffithsia multifida / var. pilifera

Diatoma marinum / on Ceramium rubrum

Ceramium fastigiatum

Griffithsia corallina

Nitophyllum punctatum / β [= var.] ocellatum

Chaetophora pisiformis / with / batrachospermum mon[iliform]e

Gloiosiphonia capillaris

Conferva glomerata

Griffithsia corallina