Prionitis ramosissima (Okamura) Kawaguchi

Prionitis divaricata (Okamura) Kawaguchi

Prionitis crispata (Okamura) Kawaguchi

Prionitis divaricata (Okamura) Kawaguchi

Prionitis divaricata (Okamura) Kawaguchi

Prionitis cornea (Okamura) E.Y.Dawson

Prionitis filiformis Kylin

Dictyopteris divaricata (Okamura) Okamura

Dictyopteris latiuscula (Okamura) Okamura

Dictyopteris prolifera (Okamura) Okamura

Dictyopteris latiuscula (Okamura) Okamura

Dictyopteris prolifera (Okamura) Okamura

Dictyopteris divaricata (Okamura) Okamura

Dictyopteris divaricata (Okamura) Okamura

Cryptonemia schmitziana (Okamura) Okamura

Dictyopteris prolifera (Okamura) Okamura

Dictyopteris prolifera (Okamura) Okamura

Dictyopteris divaricata (Okamura) Okamura

Around Lake Kawaguchi (Kawaguchi-ko Fukin)

Lake Kawaguchi

Lake Kawaguchi

Lake Kawaguchi

Lake Kawaguchi

Lake Kawaguchi

Lake Kawaguchi

Solieria pacifica (Yamada) Yoshida

Sargassum ringgoldianum Harv

Laurencia okamurae Yamada

Laurencia okamurae Yamada

Plocamium telfairiae (Harv.) Kütz

Gracilaria verrucosa (Huds.) Papenf

Gracilaria verrucosa (Huds.) Papenf

Plocamium leptophyllum Kütz. var. flexuosum (Harv.) J.Agardh

Chaetomorpha crassa (C.Agardh) Kütz

Campylaephora crassa (Okamura) Nakam

Derbesia marina (Lyngb.) Solier

Galaxaura falcata Kjellm

Galaxaura falcata Kjellm

Hincksia mitchelliae (Harv.) P.C.Silva

Polysiphonia tokidae Segi

Polysiphonia tokidae Segi

Campylaephora hypneoides J.Agardh

Chondria dasyphylla (Woodw.) C.Agardh

Dictyota linearis (C.Agardh) Grev

Hydroclathrus clathratus (Bory) Howe

Ulva pertusa Kjellm

Jania radiata Yendo

Jania radiata Yendo

Cutleria cylindrica Okamura