Svalbard
Vascular
plant
species found nowhere else include the Svalbard Cinquefoil Potentilla insularis (Flora
of Svalbard)
(Nordisk
Flora),
the Svalbard Saltmarsh Grass Puccinellia
svalbardensis (Flora
of
Svalbard WM), and Wilander's Buttercup Ranunculus wilanderi
(Flora
of Svalbard).
The Svalbard Reindeer Rangifer
tarandus platyrhynchus (Norwegian
Polar Institute) (Mongabay)
is an endemic subspecies of mammal and is sometimes recognized as a
full species (ZooKeys).
Endemic insects include the aphids Sitobion calvulus (p. 6 of entomologi.no pdf) and Acyrthosiphon svalbardicum (iNaturalist) (SPIDER WM), the braconid wasps Diaeretellus svalbardicum (INRA WM) and Aphidius leclanti (BOLD), the dung flies Scathophaga annae and Scathophaga simaceki (ResearchGate), the black fungus gnats Trichocoelina obesula (GBIF) and Trichocoelina semisphaera (GBIF), and an undescribed chironomid fly "Smittia sp. 1ES" (Springer).
Other endemic invertebrates include a springtail Megalothorax svalbardensis (GBIF), the mites Antennoseius oudemansi (ResearchGate) and Kunstidamaeus arcticus (PLAZI) and Cecidophyes siedleckii (ResearchGate), a marine amphipod Nicippe isaki (Taylor & Francis), the tardigrades Isohypsibius coulsoni and Bryodelphax parvuspolaris (both at Springer WM pdf), the gastrotrichs Chaetonotus svalbardi (ResearchGate) and Bifidochaetus arcticus (ResearchGate), a rotifer Encentrum dieteri (ResearchGate), an undescribed mollusc in the genus Simrothiella (Univ. Bergen WM), and a sponge Halicnemia wagini (PLAZI).
Endemic fungi include Hebeloma
perexiguum (Fig. D at ResearchGate)
and Psychromyces
glacialis (fig. 5 at Microbiology
Soc.). Endemic lichens include Rusavskia dasanensis
(ResearchGate)
and Rhizocarpon mahreri
(GBIF).
Endemic
liverworts include Lophozia
svalbardensis (ResearchGate).
Svalbard is a territory of Norway.
For an overview of invertebrate biodiversity see (ResearchGate).
Species of mites known only from Svalbard are indicated with a
"†" on Table 1 of (ResearchGate).