an ã ▁River ▁in ▁Brazil . ▁This ▁species ▁was ▁previously ▁within ▁the ▁genus ▁Ph ry n oh y as , ▁which ▁was ▁recently ▁syn onym ized ▁with ▁Tra chy ce phal us . ▁ ▁Description ▁▁ ▁These ▁fro gs ▁are ▁fairly ▁large , ▁reaching ▁sizes ▁of ▁ ▁in ▁length . ▁ ▁Ad ult ▁fro gs ▁are ▁light ▁grey ▁in ▁colour ▁with ▁brown ▁or ▁black ▁band ing , ▁while ▁ju ven iles ▁will ▁exhib it ▁stronger ▁contrast s . ▁As ▁they ▁age , ▁their ▁skin ▁develop s ▁a ▁slightly ▁b um py ▁texture . ▁ ▁The ▁" mil k " ▁in ▁the ▁common ▁name ▁comes ▁from ▁the ▁mil ky ▁fluid ▁these ▁fro gs ▁ex crete ▁when ▁str essed . ▁ ▁Hab itat ▁▁ ▁Mission ▁golden - ey ed ▁tree ▁fro gs ▁inhab it ▁hum id ▁rain for est ▁regions . ▁They ▁often ▁inhab it ▁veget ation ▁which ▁extends ▁over ▁permanent , ▁slow - mov ing ▁water ▁sources . ▁ ▁In ▁capt ivity ▁▁ ▁Tra chy ce phal us ▁res in if ict rix ▁is ▁commonly ▁found ▁in ▁capt ivity . ▁They ▁are ▁relatively ▁easy ▁to ▁care ▁for , ▁but ▁require ▁a ▁significant ▁amount ▁of ▁space , ▁hum id ity , ▁and ▁regular ▁c age ▁maintenance ▁to ▁ensure ▁a ▁clean ▁health y ▁environment . ▁ ▁References ▁ ▁External ▁links ▁ ▁Category : Tra chy ce phal us ▁Category : Am ph ib ians ▁of ▁Boliv ia ▁Category : Am ph ib ians ▁of ▁Brazil ▁Category : Am ph ib ians ▁of ▁Colombia ▁Category : Am