Gabon

Among the freshwater fish species unique to Gabon are many killifish including Aphyosemion alpha (FishBase), Hypsopanchax catenatus (Killifish of West Africa), Plataplochilus miltotaenia (Killifish of West Africa), and Epiplatys huberi (Killifish of West Africa). Other endemic fish include the cichlids Parananochromis ornatus (Cichlid Room Companion) and Chromidotilapia melanie (FishBase), a barb Enteromius pinnimaculatus (Species New to Science), an African tetra Brachypetersius gabonensis (FishBase), Neolebias gossei (p. 19 of HAL pdf), Hepsetus kingsleyae (iNaturalist), the elephantfish Paramormyrops longicaudatus (FishBase) and Stomatorhinus ivindoensis (ResearchGate), Monostichodus elongatus (iNaturalist), and several catfishes: Channallabes ogooensis (FishBase), Phractura stiassny (ResearchGate), Microsynodontis emarginata (PlanetCatfish), and Synodontis acanthoperca (p. 20 of HAL pdf). Endemic genera include Aapticheilichthys (Rivulins WM), a catfish Atopodontus (PlanetCatfish), a shellear Grasseichthys (Africhthy WM pdf), and an elephantfish Cryptomyrus (ZooKeys).

The Gabon Clingfish Apletodon gabonensis (ResearchGate) (p. 23 of HAL pdf) is a marine species known only from Gabon.

Mammals found nowhere else include the Sun-tailed Monkey (ARKive WM), the Makandé Squirrel Galago (Google Books) (Mammal Watching WM), and Du Chaillu's Rope Squirrel (Google Books) (IUCN).

The Olive-backed Forest Robin Stiphrornis pyrrholaemus (EurekaAlert!) (eBird) (ResearchGate) is an endemic bird.

Reptiles known solely from Gabon include the Iboundji Blind Snake Letheobia pauwelsi (ResearchGate) (Oliver Pauwels), the Gabon Legless Skink Feylinia boulengeri (fig. 2 at ResearchGate) (BHL), the Omboué Worm Lizard Cynisca bifrontalis (iNaturalist) (ResearchGate), and Haug's Worm Lizard Cynisca haugi (BHL).

Endemic amphibians include the Crystal Forest Tree Frog Leptopelis crystallinoron (ARKive WM), the Iboundji Smalltongue Toad Werneria iboundji (GBIF), the Gabon Dwarf Clawed Frog Hymenochirus feae (Pipids of the World WM), Stevart's Egg Frog Leptodactylodon stevarti (p. 46 of biotope pdf), the Lope Egg Frog Leptodactylodon blanci (iNaturalist) (GBIF), the Fantastic Reed Frog Hyperolius chabanaudi (GBIF), and probably the Ogowe Puddle Frog Phrynobatrachus ogoensis (iNaturalist) (p. 36 of Oliver Pauwels pdf).

Butterflies known only from Gabon include Bebearia faraveli (africamuseum.be), Charaxes basquini (Charaxes.be WM), Neptis amieti (figs. 6 & 26 at Persée), Bicyclus ivindo (BOLD), and Euphaedra abri (BOLD). Endemic moths include a silk moth Orthogonioptilum fang (BOLD) and a tiger moth Novilema bifurcum (GBIF).

Other endemic insects include the dragonflies Paragomphus dispar (ADDO WM) and Malgassophlebia andzaba (p. 180 of Odonatologica pdf), the damselflies Chlorocypha helenae (ADDO WM) and Africocypha varicolor (IUCN), a bug Schaeferiana incompleta (ZooKeys), the rhinoceros beetles Augosoma hippocrates (gidearchive) and Alissonotum quadridens (MNHN), a longhorn beetle Acutandra noellae (ResearchGate), an ambrosia beetle Scolytoplatypus unipilus (ZooKeys), a tiger beetle Lophyra florae (MNHN), the ground beetles Afrosyleter telnovi (fig. 3 at S&R pdf) and Procletus gabunensis (p. 47 of Entomofauna pdf), the ants Simopone occulta (AntWiki) and Acropyga bakwele (BHL), an antlion Cymothales massaronei (Species New to Science), the mantids Congoharpax coiffaiti (MNHN) and Microsibylla sechii (ResearchGate), a stick insect Xylica coriacea (Phasmida WM), a katydid Poreuomena matthaei (DZE), a grasshopper Pteropera jeanninae (GBIF), and a cricket Afrophaloria apiariensis (GBIF).

Other endemic invertebrates include a tarantula Heterothele gabonensis (Birdspiders.com WM), the jumping spiders Thiratoscirtus oberleuthneri (ResearchGate) and Pochyta tendicula (GBIF), a harvestman Sorensenius aelleni (BHL), a freshwater crab Potamonautes nheenae (zenodo), a freshwater shrimp Caridina lineorostris (GBIF), a centipede Pectiniunguis minutus (ResearchGate), an earthworm Dichogaster moussavoui (BOLD), a freshwater snail Hydrobia gabonensis (BioLib), and several land snails: Achatina vignoniana (Femorale WM), Avakubia crystallum (BioOne), and Thapsia wieringai (Semantic Scholar). A social spider Agelena consociata (Monde des Insectes WM) lives in groups that may include over 1000 individuals. The mite family Gaboneremaeidae (BioOne) is known only from Gabon.

Marine species known only from Gabon include the shrimps Cinetorhynchus gabonensis (GBIF) and Nennalpheus gabonensis (GBIF) and several pyramid snails: Turbonilla krakstadi, Turbonilla anselmopenasi, and Turbonilla iseborae (all at Zootaxa pdf).

Among the 425 vascular plant species restricted to Gabon (Tropicos WM) are Taeniorrhiza nguemae (Discover + Share), Bulbophyllum pauwelsianum (Tropicos WM), Microcoelia nguemae (Species New to Science), Rhaphidophora bogneri (ResearchGate), Croton tchibangensis (IUCN), Amorphophallus canaliculatus (IAS WM), Begonia ferramica and Ardisia belingaensis (both on p. 10 of MOBOT pdf), Sabicea golgothae (IUCN), Palisota alboanthera (iNaturalist), Salacia diplasia (Tropicos WM), Inversodicraea nicolasii (fig. 3D at placevo.org), Costus loangensis (ResearchGate), Calvoa maculata (p. 7 of MOBOT pdf), Thaumatococcus flavus (IUCN), Macropodiella hallaei (iNaturalist), Torenia daubyi (Tropicos WM), Inversodicraea boumiensis (GBIF), Tristemma vestitum (IUCN), and Monanthotaxis paniculata (World Annonaceae). Endemic vascular plant genera include an orchid Veyretella (GBIF) and Pseudartabotrys (ResearchGate).

Trees known only from Gabon include Englerodendron hallei (iNaturalist), Cola lizae (anthropogen), Englerophytum gigantifolium (IUCN), Leeuwenbergia letestui (IUCN), Gilbertiodendron maximum (POWO), Raphia gabonica (PhytoKeys), Strombosia fleuryana and Drypetes verrucosa (both at ResearchGate), Drypetes aphanes (ResearchGate), Colletoecema gabonensis (IUCN), Rhaptopetalum rabiense (PhytoKeys), Campylospermum louisii (p. 29 of ResearchGate pdf), Pauridiantha smetsiana (p. 2 of Field Museum pdf), Eugenia ogoouensis (IUCN), Cleistanthus bambidianus (IUCN), Dacryodes ebatom (p. 51 of ResearchGate pdf), Uvariopsis citrata (IUCN), Synsepalum fleuryanum (IUCN), Dactyladenia jongkindii (IUCN), and Berlinia razzifera (POWO). Endemic tree genera include a legume Gabonius (ResearchGate), Iridosma (BHL) (JSTOR), and Bizonula (BHL) (GBIF).

Endemic fungi include Phylloporia flabelliforma and Phylloporia gabonensis (both at ResearchGate). Endemic non-vascular plants include a liverwort Ceratolejeunea kuerschneri (ResearchGate) and the mosses Cyclodictyon immersum (GBIF) (BHL) and Fissidens argyroloma (GBIF).

Important terrestrial ecoregions in Gabon include the Atlantic Equatorial Coastal Forests (WWF WM) and the Northwest Congolian Lowland Forests (WWF WM). Important freshwater ecoregions include the Southern Gulf of Guinea Drainages (FEOW WM) and the Ogooue-Nyanga-Kouilou-Niari (FEOW WM).