T.G. PILLAI AND HA. TEN HOVE 



Fig. 32 Spiraserpula minuta (Straughan, 1967). A-Q, From Port Douglas, N. Queensland. A, Erect part of tube showing granular overlay. 

 B & C, Substratal view of tubes opened to show ITS: an unserrated dorsal ridge along the convex wall, and a serrated ventral ridge 

 opposite. D & E, Complete worm showing filamentous rudimentary opercula, extent of thoracic membranes and dorsal and ventral 

 longitudinal abdominal grooves. F, Branchial crown and rudimentary operculum of right side from another worm. G, Two views of the 

 anterior part of a worm fixed outside the tube, collar and thoracic membranes. I-M, Five bayonet chaetae from one fascicle. N, Thoracic 

 uncini. O, Anterior abdominal uncini. P, Uncini from a torus middle abdominal region. Q, Posterior abdominal uncini. 



