The Jollyville Plateau salamander is unusual in retaining its larval features, such as external gills as an adult. It doesn’t undergo metamorphosis into a terrestrial adult form, instead remaining aquatic throughout its life (1) (4) (5).
The Jollyville Plateau salamander preys on small aquatic invertebrates, particularly larvae and snails, but little else is known of its feeding habits (4).
Although the Jollyville Plateau salamander is likely to reproduce throughout the year, juveniles are most commonly seen from March to August (4) (5). It is thought that the Jollyville Plateau salamander deposits its eggs in gravel substrate in a similar manner to other closely-related species in central Texas. The small, juvenile Jollyville Plateau salamander is most likely to be found in shallow water at the stream edge, as it prefers thinner substrate (4).