Sint Maarten
The Sint Maarten Pejerry Melanorhinus boekei (CAS) is a freshwater fish known solely from Sint Maarten.
A pseudoscorpion Amblyolpium martinensis (p. 20 of Naturalis pdf file) is an invertebrate known so far only from Sint Maarten.
Two
plants unique to Sint Maarten are a lidflower Calyptranthes boldinghii
(NYBG)
and a legume Galactia
nummularia (NYBG).
Sint
Maarten is included in the
Caribbean Islands biodiversity hotspot (Biodiversity
Hotspots).