| Subphylum Tunicata/Urochordata | Class Ascidiacea
rounded blob-shaped animals are commonly seen on our Northern shores .
about 5-10cm in diameter. Rubbery blobs forming on hard surfaces or
on stones near
the mid-water mark. In various shades
of black, red, yellow, brown and beige.
These blob ascidians look like the ones that are sometimes used by
some sponge crabs for camouflage and protection.
Pulau Ubin, Dec 09
Changi, May 06
Punggol, Jun 12
are difficult to positively identify without examination of internal parts.
On this website, they are grouped by external features for convenience of
ascidians on Singapore shores