FOREGUT ANATOMY OF CRASSISPIRINE GASTROPODS 



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Fig. 23 Radulae of Crassispirinae. a, Ptychobela suturalis scale bar = 20pm b, Vexitomina gurrardi scale bar = 20pm c, Funa latisinuata scale bar = 50pm 

 d, Funa jeffreysii scale bar = 60p.m. 



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Fig. 24 Cheungbeia mindanensis (Smith, 1877) A, longitudinal section of the proboscis tip, the tooth at the same scale shown below; B, longitudinal 

 section of the proboscis base and buccal mass (salivary ducts not shown). 



