▁large ▁disc s . ▁ ▁The ▁fingers ▁are ▁bas ally ▁we bb ed ▁whereas ▁the ▁to es ▁are ▁about ▁two ▁third s ▁we bb ed . ▁The ▁d ors um ▁var ies ▁from ▁uniform ▁be ige ▁to ▁dark ▁green ish - b rown . ▁Dist inct ▁sp ots ▁may ▁be ▁present . ▁About ▁half ▁of ▁the ▁males ▁have ▁two ▁distinct ▁X - sh aped ▁sp ots ▁but ▁in ▁the ▁rest ▁they ▁only ▁slightly ▁evident ▁or ▁nearly ▁absent . ▁The ▁v enter ▁is ▁cre amy ▁yellow ▁and ▁the ▁vocal ▁sac ▁is ▁yellow . ▁The ▁ir is ▁is ▁bronze - b rown . ▁ ▁The ▁male ▁advert is ement ▁call ▁is ▁a ▁bi phas ic , ▁no isy , ▁strong ▁note ▁last ing ▁about ▁ 0 . 0 6 ▁seconds ▁and ▁repeated ▁about ▁ 8 7 ▁times ▁per ▁minute . ▁ ▁Hab itat ▁and ▁conservation ▁Sc ina x ▁cast rov ie jo i ▁occurs ▁in ▁open ▁areas ▁in ▁inter - And e an ▁valle ys , ▁mont ane ▁T uc um ano - B ol iv ian ▁forest , ▁and ▁Y ung as ▁forest . ▁It ▁is ▁a ▁locally ▁common , ▁ar b ore al ▁species . ▁M ales ▁have ▁been ▁found ▁calling ▁at ▁sun set ▁from ▁the ▁ground ▁or ▁per ch ing ▁on ▁veget ation ▁surrounding ▁a ▁lake . ▁It ▁has ▁also ▁been ▁recorded ▁next ▁to ▁p onds ▁or ▁water ▁t anks ▁on ▁emer gent ▁veget ation . ▁It ▁is ▁threatened ▁by ▁habitat ▁loss . ▁However , ▁it ▁is ▁considered ▁" Data ▁Def ic