Fig. 1 . Semidiagrammatic views of the animal and shell in four genera of Vermetidae and two genera of 
Siliquariidae. a, Vermetus , based on V. novae-hollandiae; b, Novastoa, (N. lamellosa); c, Serpulorbis, (S. zelandicus , 
with mucous trap extended during feeding); d, Aletes, (a pair of A. squamigerus with portion of the communal 
mucous sheet); e, Stephopoma (5. roseum, with the feeding fringe of gill filaments extended);/, Siliquaria (based on 
S. maoria ). 
