PHYLOGENY OF ARIETELLID COPEPODS 



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Fig. 13. Arietellus plumifer, female. A, Genital double-somite, ventral view; B, Internal structure of right genital system; C, Antennulary 

 segments XXII to XXVIII; D, Antennary exopod; E, Mandibular exopod; F, Fifth segment of mandibular exopod, note reduced seta 

 indicated by arrowhead; G, Praecoxal arthrite, coxal endite and endopod of maxillule, rudimentary endopod indicated by arrowhead; H, 

 First and second praecoxal endites of maxilla; I, Basal spine of maxilla. Scales in mm. 



