As for all members of the genus Musseromys, they are small murids weighing between 15 and 22 g (0.53 and 0.78 oz).[2] They have tails of 82–101 mm (3.2–4.0 in) which are usually longer than the rest of their bodies 74–84 mm (2.9–3.3 in).[2]
Measurements of the holotype (adult ♀) and 2 other specimens (1 adult ♀ & 1 ♂) of Musseromys beneficus[2]
Attribute
FMNH 198713 (♀)
FMNH 198714 (♀, holotype)
FMNH 198857 (♂)
Head-body length (mm)
75
81
84
Tail length (mm)
82
82
88
Weight (g)
18
22
22
Conservation
Data on this species endemic to the Philippines is, as of now, known from only one location.[2] This particularity, alongside lack of knowledge on habitats and potential threats of the species, brought the IUCN to assess the Mount Pulag tree-mouse as "Data Deficient".[1]
