The specific name, beetzi, is in honor of German geologist Paul Friedrich Werner Beetz (1887–1954), who collected the holotype.

[2] T. beetzi is found in southern Namibia and northwestern South Africa.

[2] The preferred natural habitats of T. beetzi are shrubland, desert, and rocky areas, at altitudes of 50–1,500 m (160–4,920 ft).

The dorsal scales are arranged in 21 rows at midbody, and the anal plate is undivided.

The average total length (including tail) of a hatchling is 18 cm (7.1 in).