Paired organ that connects the primitive kidney Wolffian body (or mesonephros) to the cloaca and serves as the anlage for certain male reproductive organs. the Wolffian duct is what remains of the pronephric duct after the atrophy of the pronephros[WP]. In Zebrafish: Duct of the adult kidney (mesonephros), present bilaterally ventral to the somites and leading to the cloacal chamber[ZFA].

http://upload.wikimedia.org/wikipedia/commons/6/6d/Gray1109.png

In the male the Wolffian duct persists, and forms for example the epididymis, the ductus deferens, the ejaculatory duct, seminal vesicle and efferent ducts.

TODO - mesonephric portion of the nephric duct, Consider adding subclasses for male and female specific variants

The first-formed kidney duct, which drains the kidney of most anamniotes and becomes the ductus deferens of male amniotes. [Bemis_WE, Functional_Anatomy_of_the_Vertebrates:_An_Evolutionary_Perspective, Glossary_G-3, Grande_L, Liem_KF, Third_Edition_(2001)_Orlando_Fla.:_Harcourt_College_Publishers, Walker_WF][VHOG], Anatomical structure consisting of either of a pair of longitudinal ducts which carry urine and in males, sperm, to the cloaca.[AAO]

Wolffian duct

uberon

renal duct, Leydig's duct, ductus mesonephricus; ductus Wolffi, archinephric duct

(...) in all craniates, the archinephric duct develops in embryogeny.[well established][VHOG]

UBERON:0003074

http://purl.obolibrary.org/obo/uberon.owl, http://purl.obolibrary.org/obo/cl.owl

• metanephric mesenchyme
• ureteric bud

• ureteric bud