Larvae observations

The organism is about 26mm in length. It has a spherical body and long, thin tail. The tail length is about 15mm and the body length is about 11mm. It's body is about 3mm wide. The organism is a tan-ish color but see-through. Inside the body are visible and symmetric organs, some of which are white and some are dark. The organism moves simalr to a caterpillar in that is does an abduction/adduction movement to move around. At first, the organism did not move but after some time it began to wriggle around. The movement of the organism seems to be random, with no path or direction. It often flips over and rolls around. Eyes are not visible, perhaps the tail functions for environment sensation. The tail is longer than the body. It does not appear to have any appendages. There are however, small bumps on its underside which may be functional is movement/traction. Based on it's random movement I would guess that the organism is in a juvenile stage.