Juergen Freund / Stalked ascidians / tunicates (Clavelina robusta) on a fan coral. Misool, Raja Ampat, West Papua, Indonesia.

Juergen Freund / Yellow sea cucumber (Colochirus robustus) on a Tunicate (Clavelina robusta). North Raja Ampat, West Papua, Indonesia.

Juergen Freund / Stalked ascidian / tunicate cluster (Clavelina robusta). Misool, Raja Ampat, West Papua, Indonesia

Doug Perrine / Tunicates / Sea squirts {Clavelina robusta} Gato Island Marine Reserve, Cebu Island, Philippines