Submitted by admin on April 23, 2009 - 00:26
CIRCULAR SAW
(Astraea heliotropium).
This aptly named shellfish requires no description. It grows to 4 in. across and is found throughout New Zealand.
Dead shells are frequently washed ashore, but living ones are obtainable only by dredging in from 10 to 40 fm.
by Arthur William Baden Powell, Assistant Director, Auckland Institute and Museum.