Summary: | Fig. 4. Rhamphotheca in lateral, dorsal and ventral view of (A) Diomedea epomophora (B) Diomedea exulans (C) Phoebetria palpebrata (D) Thalassarche bulleri (E) Thalassarche cauta (F) Thalassarche chrysostoma (G) Thalassarche melanophris (Diomedeidae) (H) Oceanodroma hornbyi (I) Oceanodroma leucorhous (Hydrobatidae) (J) Fregetta tropica (K) Oceanites gracilis, and (L) Oceanites oceanicus (Oceanitidae). Abbreviations: in incurrent narine, en excurrent narine + aperture of oil gland. Published as part of Piro, Alejandra, 2022, Comparative morphology of the compound rhamphotheca of tubenosed seabirds (order Procellariiformes), pp. 176-188 in Zoologischer Anzeiger 299 on page 180, DOI:10.1016/j.jcz.2022.05.012, http://zenodo.org/record/10374752
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