Order Dasyuromorphia Author Wilson, Don E. Author Reeder, DeeAnn text 2005 The Johns Hopkins University Press Baltimore Mammal Species of the World: a Taxonomic and Geographic Reference (3 rd Edition), Volume 1 22 37 book chapter 0-8018-8221-4 10.5281/zenodo.7316519 Sminthopsis longicaudata Spencer 1909 Sminthopsis longicaudata Spencer 1909 , Proc. R . Soc. Victoria , n. s., 21: 449 . Type Locality: Australia , Western Australia . Vernacular Names: Long-tailed Dunnart . Distribution: Western Australia . Conservation: CITES – Appendix I; U.S. ESA – Endangered; IUCN – Lower Risk (lc). Discussion: Forms a species-group by itself. Known from only four specimens ; see Ride (1970:201) .