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Y.I. KANTOR, A. MEDINSKAYA AND J.D. TAYLOR 



Fig. 30 a, Nquma scalpta, longitudinal section of foregut showing proboscis and glandular anterior part rhynchodeal wall. Scale bar = 250um b, 



Vexilomina garrardi showing proboscis and muscular wall of the posterior rhynchodeum continuous with proboscis wall and also the radular sac located 

 some distance to the posterior of the proboscis base. Scale bar = 250um c, Ptychobela suturalis showing large buccal lips, inverted into the buccal cavity. 

 Scale bar = 250um d, Cheungbeia mindanensis, sac-ike enlargement of the buccal tube near the proboscis tip showing the pad of tall epithelial cells. 

 Scale bar = 60um e, Crassispira harfordiana flucki, long proboscis in the rhynchocoel showing the radular sac located in the anterior part of the 

 proboscis and the complex folding of the proboscis tip (see Fig. 6). Scale bar = 250um f, longitudinal section of the proboscis tip of the outgroup 

 Gemmula deshayesi (Turrinae) showing the wishbone tooth held in the sac-like enlargement of the buccal tube and the intermediate sphincter located 

 several tooth lengths from the proboscis tip. Scale bar = 250um. 



