Rab Gameda and his son Rabbi Chiya [at the end of Tamid (32) and Nedarim (50b) it is stated that he gave to the sailors to purchase something for him, and they bought him a monkey, which ran into a cave. They dug after it and found a treasure, and they gave everything to Rab Gameda]:
Seder_HaDorot,_Tanaim_and_Amoraim.865:1