I've never heard of private individuals keeping them. It was only recently that captive specimens were successfully reproduced, if I'm not mistaken. Are you sure it was T. culeus? I think other members of the genus may have come in at some point in time to the private sector. JVKI remember a long time ago on a private Yahoo group that some people were keeping Tematobius culeus, the Lake Titicaca lungless frog. Is anyone still working with them?