Tooth Outline Shape Analysis of the Ryukyu Wild Boar (Sus scrofariukiuanus) and the Japanese Wild Boar (S. s. leucomystax) by Geometric Morphometrics Yamada, Eisuke and Anezaki, Tomoko and Hongo, Hitomi, Mammal Study, 43, 99-107 (2018), DOI:http://dx.doi.org/10.3106/ms2017-0080