“…Previous studies of the microscopic structure of the tongue in rodents have described all five standard types of lingual papillae (filiform, conical, fungiform, vallate and foliate) in the house mouse, Mus musculus (Kobayashi et al 1989), Patagonian cavy, Dolichotis patagonum (Emura et al 2011), hazel dormouse, Muscardinus avellanarius (Wolczuk 2014), Manchurian chipmunk, Tamias sibiricus (Kobayashi et al 1992) and bank vole, Clethrionomys glareolus (Jackowiak and Godynicki 2005). Filiform, fungiform, vallate and foliate papillae have been found in the agouti, Dasyprocta aguti (Ciena et al 2013), capybara, Hydrochaeris hydrochaeris , American beaver, Castor canadensis (Shindo et al 2006), nutria, Myocastor coypus (Emura et al 2001), large vesper mouse, Calomys callosus (Watanabe et al 1997), porcupine, Hystrix cristata ) and Japanese dormouse, Glirus japonicus (Kubota and Togawa 1966).…”