unique to Saba is the Saban Anole Anolis
Some yet undescribed marine gobies were discovered off Saba in 2006 (BBC) and other undescribed species from the Saba Bank include a cardinalfish Apogon (fig. 70 at PLoS One) and a tube blenny Emblemariopsis (fig. 158 at PLoS One),
Invertebrates restricted to Saba include an ambush bug Lophoscutus geijskesi (p. 8 of Naturalis pdf file), a jewel beetle Chrysobothris sabae (BioOne), a moth fly Alepia apexalba (Taylor & Francis), the goblin spiders Scaphiella saba (AMNH) and Stenoonops saba (AMNH), and a pseudoscorpion Corticochernes sabae (p. 9 of Zool. Med Leiden pdf file). Two likely undescribed species of otocorals were discovered on a recent survey of the Saba Bank (PLoS One).
About a dozen new species of brown algae (PLos One) have been recently discovered on the Saba Bank.
The Saba Bank is the largest atoll in the Atlantic Ocean and has several marine species not known elsewhere (see PLoS One). Saba is included in the Caribbean Islands biodiversity hotspot (CEPF) and is a special municipality of the Netherlands.