North Pacific Right Whale
Eubalaena japonica
2.33 m (range 2.15 m–2.7 m) record 2.7 m
Penis length of adult males measured on the flensing deck (Japanese special-permit catches, 1961–1962). Mean of the four adults in Table 20 (225, 215, 220, 270 cm), computed by us; the text gives the adult range 215–270 cm. Organ state at measurement not stated (dead whales, so not erect).
Record holder
Adult North Pacific right whales had penises of 2.15–2.7 m, and one male's two testes weighed 972 kg between them.
Margin note: Travels heavy.
Sources
- Omura H., Ohsumi S., Nemoto T., Nasu K., Kasuya T. (1969) Black right whales in the North Pacific. Scientific Reports of the Whales Research Institute 21: 1–78 link
- COSEWIC (2013) COSEWIC assessment and status report on the North Atlantic Right Whale Eubalaena glacialis in Canada. Committee on the Status of Endangered Wildlife in Canada, Ottawa. xi + 58 pp. link
- Brown M.W., Sironi M. (2023) Right whale sexual strategies and behavior. In: Würsig B., Orbach D.N. (eds) Sex in Cetaceans, pp. 543–569. Springer, Cham doi:10.1007/978-3-031-35651-3_23
Drawn from
- Omura et al. 1969, Plate VIII, fig. 1: Photo of the extruded penis of Whale No. 61A (225 cm long, 110 cm girth at insertion) on the flensing deck: thick base folded over near the genital slit, then a long narrower shaft tapering to a point
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