Perrin, W.F.; Würsig, B.; Thewissen, J.G.M. (2009). Encyclopedia of marine mammals. Second edition. Academic Press: London. ISBN 978-0-12-373553-9. xxix, 1316 pp. (look up in IMIS) [details]
Total lengths (n = 13) range from 142 to 187 cm. Females (n = 5) measured 142-183 cm, males (n = 8) 163-187 cm. This is probably not the total range of length for the species.