Rhinatrema is a genus of caecilians in the family Rhinatrematidae.[1][2] Their common name is two-lined caecilians. The genus is known from the Guyanas (Guyana, French Guiana, and Suriname) and adjacent Brazil.[1] Most Rhinatrema are known to inhabit and live in areas of tropical forests where there is an abundance of dense, dead vegetation matter.[3]
Rhinatrema are primitive caecilians that have a true tail. They are oviparous.[4]
Until recently, the two-lined caecilian (R. bivittatum) was the only species in the genus Rhinatrema. However, in 2010 and 2018, new species were described. The genus now contains now six species:[1][2]
Binomial name and author Distribution Status Rhinatrema bivittatum (Guérin-Méneville, 1838) Guyana, Surinam, French Guiana, Brazil Least Concern[5] Rhinatrema gilbertogili Maciel, Sampaio, Hoogmoed, and Schneider, 2018 Brazil Not evaluated Rhinatrema nigrum Dunn, 1942 Guyana, Venezuela, possibly Brazil Least Concern[6] Rhinatrema ron Wilkinson and Gower, 2010 Brazil Not evaluated Rhinatrema shiv Gower, Wilkinson, Sherratt, and Kok, 2010 Guyana Not evaluated Rhinatrema uaiuai Maciel, Sampaio, Hoogmoed, and Schneider, 2018 Brazil Not evaluated