Domestic Cat
Felis catus
7.5 mm (range 5 mm–1 cm)
Length of the free portion of the penis (state not stated; midpoint of 5–10 mm)
Spiny, Has a bone
A tomcat's penis carries 120 to 150 small spines pointing back towards the base. They depend on male hormones and regress within 5–6 weeks of neutering.
Margin note: Individually modest.
Sources
- Johnson A.K. (2022) Normal feline reproduction: The tom. Journal of Feline Medicine and Surgery 24(3):212–220 doi:10.1177/1098612X221079707
- Fleming P.A., Crawford H.M., Auckland C.H., Calver M.C. (2020) Body size and bite force of stray and feral cats—are bigger or older cats taking the largest or more difficult-to-handle prey? Animals 10(4):707 doi:10.3390/ani10040707
- Little S.E. (ed.) The Cat: Clinical Medicine and Management, Chapter 39 'Male Reproduction' (read as a search excerpt) link
Drawn from
- Johnson 2022, Fig. 4: Photo of the extruded penis of an intact tom: smooth preputial fold at base, conical glans with caudally pointing spines, smooth tip. No scale bar.