The recently described Timor Longneck Turtle Chelodina timorensis (CRF pdf file) is often considered a subspecies of Chelodina mccordi. Among over a dozen recently discovered undescribed species of reptiles from Timor-Leste is a bent-toed gecko of the genus Cyrtodactylus (FPCD) and photos of additional species can be accessed from (ZooKeys) and (Mark O'Shea).
The Timorese Horseshoe Bat Rhinolophus montanus (Planet' Mammiferes) is known only from the from Quoto Lou Caves.
Endemic freshwater fish include a hardyhead Craterocephalus laisapi (aqua) from the Ira Siquero River and apparently an undescribed species of goby Lentipes from the Vero River (p. 33 of La'o Hamutuk pdf file). A recently described marine fish known only from Timor-Leste is Santana's Dwarf Goby Eviota santanai (National Geographic).
Insects known solely from Timor-Leste include the butterflies Delias splendida (Delias of the World) and Delias eileenae (Delias of the World), and an ant Tetramorium rekhefe (eol). Other invertebrates currently known only from Timor-Leste include the land snails Parachloritis afranio and Parachloritis herculea (both at fig. 8 at Contributions to Zoology) and the amphipod crustaceans Ampithoe atauro and Quadrimaera metinaro (Australian Museum pdf file).
Two recently described orchids are known only from Timor-Leste: Habenaria
ankylocentron (p. 8 of univie.ac.at
pdf file) and Pterostylis
timorensis (p. 15 of univie.ac.at
pdf file). Other plants known solely from
Timor-Leste include Eucalyptus
Franklin) and Strobilanthes
Timor-Leste is part of the Timor and Wetar Deciduous Forests terrestrial ecoregion (EoE), the Lesser Sunda Islands freshwater ecoregion (FEOW), the Sunda Islands coral reef hotspot (Columbia Univ. pdf file), and the Wallacea biodiversity hotspot (CEPF). Additional endemic species from the island of Timor that are shared with Indonesia can be found here.