Rhineura

Rhineura is a monotypic genus of amphisbaenian reptiles in the family Rhineuridae, containing the single living species Rhineura floridana, commonly known as the Florida worm lizard. It is the only extant member of Rhineuridae, an ancient, primitive lineage within Amphisbaenia. The Florida worm lizard is endemic to the U.S. state of Florida, where it occupies sandy, well-drained soils across various habitats, including pine flatwoods, sandhills, scrub, and occasionally disturbed ground. It is a fossorial creature that spends most of its life underground, surfacing mainly after rainfall or during moist conditions.

Morphology is characterized by an elongated, cylindrical body with a head and tail that are reduced and blended into the body; the skin bears numerous annuli, giving a worm-like appearance. Adults reach roughly 20 to 30 centimeters in length. Coloration is typically pale brown to gray dorsally with lighter ventral surfaces.

Diet consists primarily of small invertebrates found in the soil, notably termites, ants, and larvae. Reproduction is oviparous, with eggs laid in burrows underground.

Conservation status: the IUCN Red List assesses Rhineura floridana as Least Concern, reflecting its broad distribution in Florida and the absence of major widespread threats, though localized habitat loss, fire suppression, and soil disturbance can affect populations.