ol ocation . ▁There ▁is ▁re dd ish - b rown ▁fur ▁at ▁the ▁back , ▁the ▁vent ral ▁color ation ▁is ▁grey ish ▁or ▁light ▁brown . ▁This ▁fur ▁is ▁thick , ▁hair s ▁are ▁slightly ▁greater ▁than ▁five ▁mill imet res ▁in ▁length , ▁with ▁an ▁overall ▁color ation ▁at ▁the ▁d ors al ▁side ▁of ▁dark ▁Pr out ' s ▁brown . ▁The ▁ears ▁and ▁wings ▁are ▁dark ▁grey . ▁The ▁range ▁of ▁measurements ▁for ▁the ▁for ear m ▁is ▁from ▁ 2 8 ▁to ▁ 3 5 ▁mill imet res , ▁and ▁their ▁weight ▁is ▁ 4 ▁to ▁ 7 ▁gr ams . ▁ ▁It ▁has ▁a ▁very ▁short ▁sn out ▁and ▁large ▁ears . ▁The ▁side ▁profile ▁of ▁the ▁sk ull ▁is ▁compar atively ▁lower , ▁fl atten ed , ▁and ▁the ▁head ▁in ▁top ▁view ▁is ▁tri angular . ▁ ▁The ▁species ▁overall ▁grey ▁and ▁brown ▁fur ▁is ▁character ised ▁by ▁hair s ▁that ▁are ▁col oured ▁dark ▁brown ▁then ▁marked ly ▁l ighter ▁at ▁the ▁upper ▁part ▁of ▁the ▁sh aft . ▁The ▁pen is ▁is ▁p end ul ous , ▁without ▁a ▁sharp ▁b end ▁in ▁the ▁length , ▁the ▁gl ans ▁pen is ▁has ▁a ▁later al ▁fol d ▁and ▁is ▁fun nel - sh aped ▁in ▁profile . ▁The ▁ratio ▁of ▁the ▁third ▁to ▁second ▁ph al an x ▁b one ▁of ▁the ▁wings ▁third ▁finger ▁is ▁greater ▁than ▁ 0 . 8 4 , ▁The ▁measured ▁range ▁of ▁length ▁of ▁the ▁head