An endemic lizard is the Bonaire Anole Anolis bonairensis (Anole Annals). The Bonaire Whiptail Cnemidophorus ruthveni (flickr) has recently been considered a distinct species from the whiptail on Curaçao Cnemidophorus murinus.
Invertebrates restricted to Bonaire include a nudibranch Trapania bonellenae (Slug Site), a hermit crab Pylopaguropsis mollymullerae (Species New to Science), a jumping ground bug Cryptostemma cobbeni (AMNH), and several land snails: Cerion bonairensis (Cerion), Cerion kralendijki (Cerion), Tudora maculata (Femorale), Tudora aurantia (Bram's Snail Site), Neosubulina harterti (fig. 17 at Internet Archive), and Stoastomops walkeri (fig. 20 at Internet Archive). Sponges known solely from Bonaire include Plakinastrella stinapa and Pachastrella pacoi (both at Sciency Thoughts) and Batzella fusca and Hymedesmia bonairensis (both at UvA DARE pdf file).
vascular plants are unique to Bonaire.
Bonaire is included in the Caribbean Islands biodiversity hotspot (CEPF), is part of the Aruba-Curaçao-Bonaire Cactus Scrub ecoregion (EoE), and is a special municipality of the Netherlands. A checklist of endemic taxa can be found at (DCBL pdf file).