Florent's Guide To The

Tropical Reefs

Green Tube Tunicate
Ascidia sydneiensis
Green Tube Tunicate
Category: Tunicates
Scientific Name: Ascidia sydneiensis
Size: 2 to 4 in. (5 to 10 cm)  
Depth: 30-130 ft. (10-40 m)
Distribution: Caribbean, Indo-Pacific
Chordata (Phylum)
└Tunicata (Subphylum)
 └Ascidiacea (Class)
  └Ascidiidae (Family)
   └Ascidia (Genus)

Tunicates & Bryozoans
Tunicates

Green Tube Tunicate

Yellow Sea Squirt

Blue Sea Squirt

Painted Tunicate

Blue Bell Tunicate

Clavelina robusta

Stalked Sea Squirt

Reef Tunicate

Blue Club Tunicate

Blue Ascidian

Rhopalaea fusca

Atriolum robustum

Didemnum Strawberry Tunicate

White Speck Tunicate

Didemnum molle

Overgrowing Mat Tunicates

Overgrowing Tunicates

Button Tunicate

Mangrove Tunicate

Perophora modificata

Blue Bell Sea Squirt

Black Condominium Tunicate

White Condominium Tunicate

Strawberry Tunicate

Ivory Tunicate

Ink-Spot Sea Squirt

Polycarpa pigmentata

Giant Tunicate

Encrusting Social Tunicate



All Photographs
© 2025 Florent Charpin