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24a. Female, leg 5 basal expansion with 6 setae.  Second seta greatly reduced, remaining 5 large.  Male, leg 4 endopod segment 2 outer corner produced as spinous process.

Question 25 (Canthocamptus)

24b. Female, leg 5 basal expansion with 6 large setae.  Male, leg 4 endopod segment 2 outer corner with unmodified spine or seta.

Question 29