Tracey I Howley, Australia
Info
Tylodina corticalis (Tate, 1889)
Endemic to Australia; southern Qld southwards and around southern Australia to south-western WA.
Tylodina corticalis is a primitive notaspid. The shell is a large and heavily calcified external shell. Similar to Umbraculum umbraculum in the shape of its shell.
Tylodina corticalis is found from the intertidal down to about 100 meters. Found usually on its food sponge Pseudoceratina sp.(Family Aplysinellidae, Order Verongida).
Very similar species are found in the Mediterranean, on the east and west coasts of North America, and southern Africa, where they eat related sponges.
When crawling, the bright yellow body becomes elongate extending some distance in front and behind the shell, unlike Umbraculum, which is a much more circular in shape.
Synonymised names
Umbrella corticalis Tate, 1889 · unaccepted
Endemic to Australia; southern Qld southwards and around southern Australia to south-western WA.
Tylodina corticalis is a primitive notaspid. The shell is a large and heavily calcified external shell. Similar to Umbraculum umbraculum in the shape of its shell.
Tylodina corticalis is found from the intertidal down to about 100 meters. Found usually on its food sponge Pseudoceratina sp.(Family Aplysinellidae, Order Verongida).
Very similar species are found in the Mediterranean, on the east and west coasts of North America, and southern Africa, where they eat related sponges.
When crawling, the bright yellow body becomes elongate extending some distance in front and behind the shell, unlike Umbraculum, which is a much more circular in shape.
Synonymised names
Umbrella corticalis Tate, 1889 · unaccepted
