Abstract
Mimon koepckeae Gardner & Patton, 1972 is a poorly-known bat species, with only three known specimens, including the holotype. Its distribution is restricted to the type locality in Ayacucho Department, Peru, and surroundings. This species has been synonymized with M. crenulatum by some authors. Based on a new specimen of M. koepckeae collected from Santuario Nacional Pampa Hermosa, Junin Department, Peru, we provide an extensive morphological comparison with M. crenulatum (Geoffroy St.-Hilaire, 1803), Mimom bennettii (Gray, 1838), and Mimon cozumelae Goldman, 1914, concluding that M. koepckeae is a valid species. As a result the distribution range of the species is extended 160 km north of the type locality. In addition, we characterize the habitat of the species, provide current data on feeding behavior, and suggest that M. koepckeae should be categorized as endangered species.
Highlights
Mimon koepckeae has a controversial taxonomic history. GARDNER & PATTON (1972) described the species based on the absence of a dorsal stripe, fewer crenulations and scarce hairs on the nose-leaf basis, narrow auditory bullae, and a well defined cleft between protocone and hypocone in the first and second upper molars
Based on a new specimen of M. koepckeae collected from Santuario Nacional Pampa Hermosa, Junin Department, Peru, we provide an extensive morphological comparison with M. crenulatum (Geoffroy St.-Hilaire, 1803), Mimom bennettii (Gray, 1838), and Mimon cozumelae Goldman, 1914, concluding that M. koepckeae is a valid species
Mimon koepckeae Gardner & Patton, 1972 is an endemic Peruvian bat whose distribution used to be restricted to the type locality in Ayacucho Department, Peru, and surroundings (SIMMONS 2005, WILLIAMS & GENOWAYS 2008, VELAZCO & AGUIRRE 2008)
Summary
Average body length is 94.5 mm, dorsal fur is tricolored and longer, ventral fur is unicolored, noseleaf is short and wide, noseleaf crenulations and hairs are absent, a free skin binding of the horseshow is absent, chin exhibits dense and long hairs; ears are longer, translucent with marked folds, ear tips are divergent; forearm is furred, calcar is shorter, plagiopatagium is inserted at tibia level, skull length is larger, anterior nasal edges are flat and slightly projected, incisors gum crests are flat, maxillary root of zygoma is flat, interorbital region is comparatively narrow, palate is large and narrow, premaxillary and maxillary are at same level on the palate, a accessory medial foramen is exhibited behind the incisive foramina, lateral palatal edges are narrower, posterior border of the hard palate does not reach the middle of mesopterygoid fossae, auditory bullae are shorter and narrower, basioccipital is wider at cochlea level, a cleft between protocone and hypocone is absent in M1 and M2, accessory cuspids of lower canine are absent, coronoid process is over diastema level, posterior edge of mandible is flat, secondary cuspid of P4 is present. The reproductive status of M. koepckeae corresponds to an adult female with perforated genitalia, which indicates recent
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