Tarantula is dumped by crawly creep.
The creature had been left in a plastic tub by a man walking near the River Clyde in Glasgow.
The Chilean rose tarantula was handed in to the Scottish SPCA's Glasgow Animal Rescue and Rehoming Centre, where she has been named Rosie.
The charity are looking for a new owner for the spider following its discovery in Clyde Street last week.
SSPCA Chief Inspector Fiona Henderson said: "The man noticed a plastic tub with a ventilated lid beside a bin and, when he went to investigate, discovered there was a tarantula inside.
"Chilean roses are popular pets and aren't venomous but most people would probably get a fright if they came across one.
"Thankfully, the man who found Rosie wasn't too fazed and he put the container in his car and brought her straight to us.
"The tub had a ventilated lid, which is made specifically for creatures such as tarantulas.
"It seems that Rosie has just been left there, which was very cruel.
"Potentially, the tub could have been cleared away with the rubbish if Rosie hadn't been spotted inside.
"Tarantulas might not be everyone's ideal pet but they are wonderful creatures and certainly don't deserve to be dumped."
Anyone with information is urged to contact the Scottish SPCA helpline on 03000 999 999.
SAFEJ Rosie the tarantula