The specific name rossmani is in honor of the American herpetologist Douglas A.

[2] T. rossmani is found in the Mexican state of Nayarit.

[3] The natural habitat of T. rossmani is freshwater wetlands.

[3] A female was observed giving birth to four live young.

Each neonate had a snout-to-vent length of about 5 cm (2.0 in).