First Reported Case of Diphallia in Corynorhinus townsendii

Nathan W. Fuller, Catherine G. Haase, Kirk A. Silas, Sarah H. Olson, Liam P. McGuire

Research output: Contribution to journalArticle

Abstract

We describe the first reported case of diphallia in a bat, Corynorhinus townsendii, captured during fall swarming at a hibernaculum in northern Utah, USA. Upon examination, we determined that one phallus was functional, as evidenced by production of urine, while the secondary phallus appeared to be overgrown with skin. A review of the medical literature relevant to diphallia suggests that this is a case of pseudodiphallia with a bifid shaft. We hypothesize that this morphological deformity likely has a low impact on the survival of this individual but may act as a physical barrier to copulation. To our knowledge, this is the first reported case of diphallia in bats.

Original languageEnglish
Pages (from-to)454-457
Number of pages4
JournalWestern North American Naturalist
Volume79
Issue number3
DOIs
StatePublished - Oct 1 2019

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