Finland
The Saimaa Seal Pusa saimensis (WWF) (sll.fi) is restricted to Lake Saimaa and has recently been recognized as a full species distinct from the more widespread Ringed Seal Pusa hispida (PNAS).
Insects from Finland include a grass-miner moth Elachista imatrella (Wikipedia), a leafroller moth Aethes kyrkii (laji.fi) (nrm.se WM), a braconid wasp Phaenocarpa ungulosetosa (laji.fi), a fairyfly Lymaenon gracilentus (ResearchGate), and the ichneumon wasps Fennomacrus koponeni (ResearchGate) (laji.fi) and Mesochorus ranini (laji.fi) (p. 35 of DiVA WM pdf).
Endemic spiders include
the money spiders Oreoneta
fennica (p. 8 of KMK
pdf) and Bolyphantes
kilpisjaerviensis (araneae)
and a ground spider Micaria
palmgreni (araneae).
A tardigrade Macrobiotus
naginae (ResearchGate)
is known only from the Rokua sand dunes.
Vascular plants unique to Finland are limited to microspecies of dandelions, hawkweeds, and a buttercup Ranunculus valtae (GBIF). Endemic dandelions include Taraxacum nylandicum and Taraxacum porcellisinus (both at SEKJ pdf), Taraxacum erici and Taraxacum laudabile (both at SEKJ pdf), Taraxacum cabannaeforme (ResearchGate), Taraxacum volitans (figs. 12-13 at journal.fi pdf), Taraxacum subinvestiens (ResearchGate), and Taraxacum subulisquameum (POWO). Endemic hawkweeds include Hieracium prenanthotavasticum (Luomus WM), Hieracium cornigerum (GBIF), Hieracium impunctatum (POWO), and Hieracium hyalinellum (POWO) (BHL).
Fungi known solely from Finland include Inocybe culicis (Inocybaceae) and Cortinarius (or Phlegmacium) ochribubalinus (GBIF). Lichens known only from Finland include Verrucaria vacillans (GBIF) and Verrucaria cavernarum (GBIF). Entosthodon ulvinenii (GBIF) is a moss known only from Finland.