FIG. 6 in Biological and cultural history of domesticated dogs in the Americas

FIG. 6. — Selection of skulls of dog breeds originating in the Americas (selection not exhaustive). These dogs demonstrate the great variation in skull shape and body size of modern American breeds, from slender to short snouted and from giant to dwarf sized varieties, including hairless forms with oligodontia. A, Chesapeake Bay Retriever (NMBE 1051681);B, Alaskan Malamute (NMBE 1051387);C, Chihuahua (NMBE 1052001);D, Fila Brasileiro (I.f.H. 14005, mirrored);E, Mexican hairless dog (ZMUZH 13754); F, Peruvian hairless dog (NMBE 1062857); G, Boston Terrier (NMBE 1051959); H, Newfoundland (NMBE 1050502). Abbreviations: I.f.H., Zoologisches Institut/Populationsgenetik (former Institut für Haustierkunde), Christian-Albrechts-Universität zu Kiel, Germany; NMBE, collection of the Albert-Heim-Foundation at the Naturhistorisches Museum Bern, Switzerland;ZMUZH, Zoologisches Museum der Universität Zürich, Switzerland. Scale bar: 5 cm.