单词	hemipenis
释义	hemipenis /ˈhɛmɪpiːnɪs / noun (plural hemipenes) Zoology Each of the paired male reproductive organs in snakes and lizards.Despite these anatomical differences, amniote penises and hemipenes share some basic similarities: they are all more or less cylindrical, and they are all hydrostatic.... Sex was determined by everting the hemipenes of males. Our studies on gartersnakes (Thamnophis sirtalis parietalis) reveal significant morphological asymmetry in this system: testes, kidneys, and hemipenes on the right-hand-side of the body are larger than those on the left.
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