
Apostichopus armatus (Selenka, 1867)
Length: 20 cm
Locality: Kuroshima, Tassha, Sado Is. Depth: 8 m
Environment: rocky reef
Water temperature: 10°C
Date: Feb, 2014 Photographer: Satoshi Awata
| Phylum | Echinodermata |
| Class | Holothuroidea |
| Order | Synallactida |
| Family | Stichopodidae |

Length: 15 cm
Locality: Kitakoura Port, Sado Is. Depth: 3 m
Environment: quay wall
Water temperature: 9°C
Date: Mar, 2014 Photographer: Satoshi Awata

Length: 20 cm
Locality: Tassha Port, Sado Is. Depth: 2-6 m
Water temperature: 10°C
Date: Feb, 2014 Photographer: Satoshi Awata