Table 3 in Taxonomic re-evaluation of New World Eptesicus and Histiotus (Chiroptera: Vespertilionidae), with the description of a new genus

Table 3. Morphological differences between Neoeptesicus gen. nov., Eptesicus, and Histiotus.
CharacterNeoeptesicus gen. nov.EptesicusHistiotusLength of ears<20 mm<21 mm> 21 mmConnecting band between earsAbsentAbsentPresent, with variable developmentSkullDelicate to robust, wide and shortVery robust, wide and shortDelicate, long and narrowDevelopment of crestsSagittal and lambdoidal crests weakly to well developed, united or notSagittal and lambdoidal crests well developed, unitedSagittal and lambdoidal crests weakly developed, separatedPostorbital process of the jugalWeakly developedWeakly developedWell developedEyesSmallSmallLargeAuditory bullaeSmallSmallLargeLength of dorsal fur (mean)4.5–13.1 mm (8.1 mm)8.1–13.7 mm (10.1 mm)8.0–14.5 mm (11.4 mm)Length of forearm (mean)31.4–48.8 mm (40.1 mm)40.1–54.0 mm (46.6 mm)44.0–52.6 mm (47.8 mm)TragusWider at the base, short, rounded, smooth and slenderWider at the base, short, rounded, smooth and broadWider at the base, long, pointed and notchedOccipital helmetAbsent to well developedWell developedAbsentGLS (mean)12.9–18.0 mm (15.8 mm)16.9–20.8 mm (19.1 mm)17.4–19.8 mm (18.4 mm)MTL (mean)4.5–7.0 mm (5.8 mm)6.2–7.7 mm (7.1 mm)5.6–7.1 mm (6.3 mm)