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November 29, 1966Zoologica scientific contributions of the New York Zoological SocietyOpen Access

Analysis of underwater Odobenus calls with remarks on the development and function of the pharyngeal pouches

William E. Schevill William A. Watkins Carleton Ray

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Abstract

W E HERE report underwater sounds made by a 10-year-old Atlantic walrus (NYA No. 1: "Olaf"), Odobenus r. rosmarus (Linne) 1758, captive at the New York Aquarium since a little over a year of age.We distinguish three categories.Most often heard is a short, rasping sound, next are series of clicks, and rarest is a striking bell-like sound.These are all true underwater sounds, made with the mouth shut and the head submerged.Examples of each are given on the accompanying phonograph disk.The familiar in-air bellow, grunt, and mellow whistle couple well with water when made by a partially immersed animal, but are not discussed here.

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Schevill et al. (1966) studied this question.

synapsesocial.com/papers/6a85a131481670416b10b593 https://doi.org/10.5962/p.203287

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