acanthodrilin set
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anterobiprostatic — adj. [L. antero, anterior; bis, twice; Gr. prohistanai, to set before] (ANNELIDA: Oligochaeta) Pertaining to the male terminalia of parthenogenetic earthworm morphs in which the posterior prostates of an acanthodrilin set are absent … Dictionary of invertebrate zoology
posterobiprostatic — adj. [L. posterus, following; bis, twice; Gr. prostates, stands before] (ANNELIDA: Oligochaeta) With reference to male terminalia, prostates in segment xix after loss of a pair in segment xvii of an acanthodrilin set … Dictionary of invertebrate zoology