142 



S. OHTSUKA, G.A. BOXSHALL AND H.S.J. ROE 





Fig. 24. Metacalanus sp. 2, female. SEM micrographs of genital double-somite. A, Genital somite, copulatory pores indicated by arrows, 

 scale bar = 20 u-m; B, Left gonopore and copulatory pore (indicated by an arrow), scale bar = 10 |xm; C, Right copulatory pore, scale bar 

 = 2 u.m; D, Left copulatory pore, scale bar = 2 u.m. 



