8 , ▁and ▁the ▁full ▁description ▁was ▁published ▁in ▁ 2 0 1 5 , ▁in ▁the ▁Pro ceed ings ▁of ▁the ▁Bi ological ▁Society ▁of ▁Washington . ▁It ▁is ▁so ▁far ▁found ▁only ▁on ▁Lu zon , ▁the ▁largest ▁island ▁in ▁the ▁Philippines . ▁The ▁first ▁spec imen ▁was ▁collected ▁from ▁Mount ▁Is ar og ▁at ▁the ▁southern ▁side ▁of ▁the ▁island . ▁Other ▁ 1 4 ▁spec im ens ▁were ▁later ▁collected . ▁It ▁is ▁the ▁fourth ▁species ▁of ▁m amm al ▁( so ▁far ▁known ) ▁living ▁only ▁on ▁that ▁mountain . ▁The ▁new ▁species ▁was ▁described ▁by ▁Dan ilo ▁S . ▁B ale te , ▁Eric ▁A . ▁Rick art , ▁Lawrence ▁R . ▁He an ey , ▁and ▁Sh aron ▁A . ▁J ans a . ▁It ▁was ▁class ified ▁as ▁new ▁species ▁based ▁on ▁DNA ▁anal ys es ▁and ▁struct ural ▁descri ptions ▁( m orph omet rc ▁anal ys es ). ▁It ▁is ▁different ▁from ▁its ▁closest ▁relative , ▁the ▁Lu zon ▁hair y - ta iled ▁rat ▁( B atom ys ▁gr anti ), ▁in ▁its ▁cy to chrome ▁b ▁sequence , ▁moder ate ▁body ▁size , ▁colour ▁patterns , ▁and ▁sk ull ▁structure . ▁ ▁Et ym ology ▁ ▁The ▁specific ▁name ▁u rag on ▁is ▁a ▁B icol ▁word , ▁the ▁language ▁of ▁the ▁local ▁people , ▁the ▁B icol anos ▁in ▁Lu zon . ▁Having ▁no ▁direct ▁English ▁rendering , ▁the ▁word ▁is ▁lo os ely ▁translated ▁as ▁" poss ess ing