Annulobalcis yamamotoi (Habe, 1974)

Annulobalcis yamamotoi
Annulobalcis yamamotoi
Photographer: 
L Thornton
Date: 
Tuesday, 1 June 1993
Location: 
Sth Solitary Island
Depth: 
19m
Annulobalcis yamamotoi
Annulobalcis yamamotoi
Photographer: 
Ian Shaw
Date: 
Tuesday, 18 October 2016
Location: 
Sth Solitary Island
Depth: 
14m
Distribution:

Rare in the Solitary Islands Marine Park where it is found at outer islands and deeper reefs. Annulobalcis sp. has been found in Vietnam and Japan. In Australia also reported from the Brunswick River in northern New South Wales.

Ecological Notes:

Found only on the base of crinoids on rocky reef.

Additional Notes:

An Ectoparasitic gastropod, this animal is found on the base of its host, usually dark coloured feather stars. The brown and yellow markings seen in the photographs are the colours of the mantle seen through the almost transparent shell. Specimens in lower photograph around 10mm long.