Hawaiian Poly clads — HymAN 335 
Fig. 3. Planocera pacifica. a, Enlarged view of eyes and tentacles; b, copulatory complexes seen from above in 
cleared entire specimen; c, sagittal view of the copulatory complexes from sections. 1, Cerebral eyes; 2, tentacular 
eyes; 5, male gonopore; 6, female gonopore; 11, ejaculatory duct; 12, seminal vesicle; 14, sperm duct; 16, vagina; 
18, entrance of oviduct into vagina; 19, Lang’s vesicle; 20, brain; 21, tentacles; 22, prostatic vesicle; 23, cirrus 
sac; 24, large teeth of cirrus sac; 26, bulbous antrum; 27, cement glands; 28, granule masses of brain; 29, prostatic 
duct; 30, small teeth lining lumen of cirrus sac; 31, cement glands entering vagina. 
