Florent's Guide To The

Tropical Pacific Reefs

Blue Ascidian
Rhopalaea crassa
Blue Ascidian
Category: Tunicates
Scientific Name: Rhopalaea crassa
Size: Up to 2 in. (5 cm)  
Distribution: Indo-West Pacific
Note: Identification tentative.
Chordata (Phylum)
└Tunicata (Subphylum)
 └Ascidiacea (Class)
  └Diazonidae (Family)
   └Rhopalaea (Genus)

Tunicates & Bryozoans
Tunicates

Blue Ascidian

Rhopalaea fusca

Atriolum robustum

Didemnum Strawberry Tunicate

Didemnum molle

Perophora modificata

Blue Bell Sea Squirt

White Condominium Tunicate

Ivory Tunicate

Ink-Spot Sea Squirt

Polycarpa pigmentata

Green Tube Tunicate

Yellow Sea Squirt

Blue Sea Squirt

Clavelina robusta

Stalked Sea Squirt

Blue Club Tunicate



All Photographs
© 2025 Florent Charpin