Marshall Islands

Marine fish known only from the Marshall Islands include the Threestripe Anemonefish Amphiprion tricinctus (iNaturalist), the Girdled Wrasse Cirrhilabrus balteatus (Underwater Kwajalein) (iNaturalist), a damselfish Pomacentrus yoshii (iNaturalist) (FishBase), a pipefish Ichthyocampus bikiniensis (BHL), the Largeeyed Wormfish Gunnellichthys grandoculis (fig. 2 at BHL), Herald's Reef Sole Aseraggodes heraldi (ResearchGate), the Marshall Slopebrotula Tuamotuichthys marshallensis (ResearchGate), Bauchot's Goby Callogobius bauchotae (Cybium pdf), and a marine hatchetfish Polyipnus oluolus (BHL).

The Ratak Imperial Pigeon Ducula oceanica ratakensis (RMI Young Champions) (Cornell) is an endemic subspecies.

Longhorn beetles unique to the Marshalls include Rhytiphora hibisci (Smithsonian WM), Rhytiphora major (Smithsonian WM), Oopsis marshallensis (Smithsonian WM), and Ceresium robustum (Cerambycidae Species WM). Other endemic insects include an ant Camponotus schneei (AntWiki), a plant bug Campylomma eniwetok (Discover Life) (fig. 876 at AMNH), a leaf-footed bug Riptortus saileri (p. 18 of Bishop Museum WM pdf), a click beetle Melanoxanthus lariversi (p. 51 of Bishop Museum WM pdf), a darkling beetle Tagalus angustus (p. 32 of Bishop Museum WM pdf), a weevil Eidophelus nubilus (barkbeetles.info).

Endemic marine molluscs include a cone snail Conus kwajaleinensis (Underwater Kwajalein), a cowrie Palmadusta johnsonorum (GBIF), Depressipoma laddi (Eddie Hardy), Depressipoma kwajaleina (fig. 14A-C at MNHN pdf), Allochroa nana (Eddie Hardy), and several sea slugs: Halgerda johnsonorum (iNaturalist), Trapania circinata (iNaturalist), and Goniobranchus galactos (Underwater Kwajalein) (iNaturalist). Other endemic invertebrates include a wolf spider Zoica pacifica (BHL), the jumping spiders Jaluiticola hesslei (Jumping Spiders) and Psenuc nuclearis (p. 21 of RCIN pdf), a pseudoscorpion Garypus ornatus (ResearchGate), a millipede Apoxenus micronesius (BHL), the shrimps Paraxiopsis majuro (Underwater Kwajalein) (iNaturalist) and Alpheus arnoa (BHL), an amphipod Melita celericula (p. 3 of UH-Manoa pdf), a parasitic barnacle Gorgonolaureus bikiniensis (BHL), a pycnogonid Ammothella stauromata (BHL), a sponge Euryspongia phlogera (BHL), an octocoral Neoacis bayeri (fig. 1B at MDPI), and a marine polychaete worm Lamprophaea pettiboneae (GBIF).

The Marshall Islands are part of the Eastern Micronesia Tropical Moist Forests ecoregion (EoE) and is part of the Polynesia-Micronesia biodiversity hotspot (Biodiversity Hotspots WM). A list of endemic species is at (Marshall Islands Biodiversity CHM WM).