Supplemental information for "Sensory anatomy of the most aquatic of carnivorans: the Antarctic Ross seal, and convergences with other mammals".

Ashley E. Latimer, Cleopatra M. Loza, Marcelo R. Sánchez-Villagra and Alfredo A. Carlini

Here, the semicircular canals of the most aquatic seal, the rare Antarctic Ross Seal (Ommatophoca rossii), are presented for the first time, along with representatives of every species in the Lobodontini: the leopard seal (Hydrurga leptonyx), Weddell seal (Leptonychotes weddellii), and crabeater seal (Lobodon carcinophagus). Because encounters with wild Ross seal are rare, and few specimens are available in collections worldwide, this dataset increases accessibility to a rare species. For further comparison, we present the bony labyrinths of other carnivorans, the elephant seal (Mirounga leonina), harbor seal (Phoca vitulina), walrus (Odobenus rosmarus), South American sea lion (Otaria byronia). 

Odobenus rosmarus MVZ 125566 View specimen

M3#173_MVZ 125566 Surface of the semicircular canals and cochlea of the walrus, Odobenus rosmarus Type: "3D_surfaces" 3D view: doi: 10.18563/m3.sf.173

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Phoca vitulina UZNH 17973 View specimen

M3#174_UZNH 17973 Endocast surface of the semicircular canals and cochlea of the harbor seal, Phoca vitulina. Type: "3D_surfaces" 3D view: doi: 10.18563/m3.sf.174

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Hydrurga leptonyx MLP 14.IV.48.11 View specimen

M3#285_MLP 14.IV.48.11 Endocast surface of the semicircular canals and cochlea of the leopard seal, Hydrurga leptonyx. Type: "3D_surfaces" 3D view: doi: 10.18563/m3.sf.285

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Leptonychotes weddellii IAA 02-13 View specimen

M3#288_IAA 02-13 Endocast surface of the semicircular canals and cochlea of the Weddell seal Leptonychotes weddellii. Type: "3D_surfaces" 3D view: doi: 10.18563/m3.sf.288

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Lobodon carcinophagus IAA 530 View specimen

M3#286_IAA 530 Endocast surface of the semicircular canals and cochlea of the crabeater seal, Lobodon carcinophagus. Type: "3D_surfaces" 3D view: doi: 10.18563/m3.sf.286

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Ommatophoca rossii MACN 48259 View specimen

M3#176_MACN 48259 Endocast surface of the semicircular canals and cochlea of the Ross seal Ommatophoca rossii. Type: "3D_surfaces" 3D view: doi: 10.18563/m3.sf.176

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Mirounga leonina IAA 03-5 View specimen

M3#287_IAA 03-5 Right endocast surface of the semicircular canals and cochlea of the elephant seal, Mirounga leonina. Type: "3D_surfaces" 3D view: doi: 10.18563/m3.sf.287

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