Juergen Freund / Tunicates / Ascidians / Sea squirts (Atriolum robustum) on a fan coral branch. Misool, Raja Ampat, West Papua, Indonesia.

Georgette Douwma / Striped triplefin (Helcogramma striata) lying on Sea squirts (Atriolum robustum) Raja Ampat, West Papua, Indonesia

Juergen Freund / Green urn sea squirt (Atriolum robustum) Moluccas Islands, Indonesia.

Juergen Freund / Tunicates / Sea squirts (Atriolum robustum) on a coral. Misool, Raja Ampat, West Papua, Indonesia..

Juergen Freund / Group of small Ascidians (Atriolum robustum). North Raja Ampat, West Papua, Indonesia.

Juergen Freund / Green urn sea squirts / tunicates (Atriolum robustum) on a fan coral. Misool, Raja Ampat, West Papua, Indonesia.

Juergen Freund / Lesser urn tunicates / ascidians / sea squirts (Atriolum robustum) North Raja Ampat, West Papua, Indonesia

Juergen Freund / Colony of Lesser urn sea squirts / tunicates (Atriolum robustum) on hard coral. Misool, Raja Ampat, West Papua, Indonesia

Juergen Freund / Tunicate {Rhopalea sp} with atriolum tunicates {Atriolum robustum} Indo Pacific

GEORGETTE DOUWMA / Sea squirts {Atriolum robustum} living on 'fighting zone' between two corals. Sulawesi,

Constantinos Petrinos / Colonial sea squirt colony (Atriolum robustum). Solomon Islands, Pacific

GEORGETTE DOUWMA / Sea squirts {Atriolum robustum} and Red sea fan coral Moluccas, Indonesia

GEORGETTE DOUWMA / Seasquirts (Rhopalaea crasssa) and (Atriolum robustum). Banda Island, Moluccas, Indonesia