Two new species of Thomasomys (Cricetidae: Sigmodontinae) from the western Andes of Ecuador and an updated phylogenetic hypothesis for the genus

Selected external and soft anatomical traits of Thomasomys: A, C dorsal and (B, D) plantar surface of right pes (A, B: T. otavalo sp. nov, MECN 5604, paratype; C, D T. igor sp. nov, MECN 708, paratype); E soft palate (T. otavalo sp. nov, MECN 6921, paratype); F, G gross morphology of the stomach (T. otavalo sp. nov, MECN 5700, paratype). Abbreviations: 1–5, digits; b, bordering fold; co, cornified epithelium; d, duodenum; d1–d3, diastemal rugae; ge, glandular epithelium; i, incisura angularis; i1–15, interdental rugae. Scale bars: 5 mm.