Honduras
Mammals unique to Honduras include the Roatan Island Agouti (iNaturalist), the Honduran Small-eared Shrew (BHL) (iNaturalist), the Honduran Broad-clawed Shrew (BHL), three species of broad-clawed shrew (ResearchGate pdf), McCarthy's Shrew (GBIF), Cruz's Long-tailed Shrew (Honduras Neotropical WM), and the extinct Little Swan Island Hutia (ramm) (Wikipedia).
The Honduran Emerald (eBird) is a critically endangered hummingbird found only in the Agalta and Aguan valleys.
Endemic freshwater fish include the Choluteca Cichlid Amphilophus hogaboomorum (GCCA), Wessel's Cichlid (FishBase), the Ulúan Killifish Profundulus (or Tlaloc) portillorum (images.killie.palo-alto.ca.us), and the Honduran Molly Poecilia hondurensis (iNaturalist) (academia.edu). A silverside Membras pygmaea (fig. 3a at Zootaxa) is known only from Brus Lagoon.
Endemic marine fish include the Redcheek Goby Tigrigobius rubrigenis (FishBase), the Roatan Goby Varicus roatanensis (ZooKeys), another goby Varicus prometheus (ZooKeys), and the Blue-backed Basslet Lipogramma idabeli (ZooKeys).
Among the reptiles found nowhere else are several large iguanas: the
Utila Spiny-tailed Iguana (ARKive
WM),
the Rio Aguan Valley Iguana (ARKive
WM),
and the Roatan Spiny-tailed Iguana (iNaturalist).
Other endemic lizards include the
the Utila Anole (BHL),
Meyer's Anole (iNaturalist),
the Honduran Giant Anole (ARKive
WM), the Lenca Emerald Spiny Lizard (iNaturalist),
the Fonseca Islands Skink (GBIF),
a casquehead iguana Laemanctus
julioi (BHL),
the Bay Island Least Gecko (iNaturalist),
and a galliwasp Diploglossus
scansorius (BHL)
(ResearchGate).
Endemic snakes include Omoadiphas
aurula (iNaturalist),
the Roatan Longtail Snake (iNaturalist),
a snail sucker Sibon
miskitus (Reptile
Database), the Honduran Red-banded Ground Snake (IUCN),
the Roatan Vine Snake
(Reptile
Database), the Three-banded Centipede Snake (iNaturalist),
the Honduran
Palm Pitviper (iNaturalist),
the Honduran Jumping Pitviper (Reptile
Database), and the Roatan Coral Snake (ARKive
WM).
Amphibians restricted to Honduras include the Honduras Rainforest Toad (iNaturalist),
the
Honduran Spikethumb Frog (ARKive
WM), the Zacate Blanco Tree Frog (iNaturalist),
the Cusuco Bromeliad Tree Frog (flickr),
the
Honduran Brook Frog
(flickr),
the Lenca Leopard Frog
(CalPhotos),
the Honduran White-lipped Frog (Leptodactylus
pdf),
the Lenca Sheep Frog (iNaturalist),
the robber frogs Craugastor
milesi (IUCN)
and Craugastor
aurilegulus (iNaturalist),
the
Cataguana Hidden Salamander (ResearchGate), the El
Cusuco Salamander (ARKive
WM),
the Cerro de en Medio Moss Salamander (AmphibiaWeb),
the Santa Barbara Bromeliad Salamander (iNaturalist),
and the Honduran Lowland Worm Salamander (ResearchGate).
Jewel scarabs known exclusively from Honduras include Chrysina spectabilis
(flickr),
Chrysina
cavei (iNaturalist),
Chrysina antonkozlovi
(iNaturalist),
and Chrysina pastori
(New
World Scarab Beetles) (iNaturalist).
Other endemic insects
include a tiger beetle Odontocheila
tawahka (GBIF),
the longhorn beetles Euderces
hefferni (GBIF)
and Derobrachus
cusucoensis (BINCO
pdf), the scarab beetles Viridimicus
omoaensis (Insects
on Stamps) and Macrodactylus
hondurensis (p. 10 of Zootaxa
pdf), a flower chafer Archedinus
antoshkai (ResearchGate),
a dung beetle Copris
nubilosus
(ResearchGate),
a glowworm beetle Cenophengus
saasil (ZooKeys),
a stick insect Apteroplopus
grossetuberculatus (GBIF),
an ant Stenamma
atribellum (AntWiki),
a cuckoo bee Nomada
zamoranica (Smithsonian),
a termite Cryptotermes
garifunae (BioOne),
a cicada Procollina
hondurensis (iNaturalist),
a katydid Calamoptera
grandis (OSF),
a grasshopper Gymnotettix
moralesi (GBIF),
a king cricket Glaphyrosoma
unumtympana (GBIF),
a metalmark butterfly Emesis
eleanorae (figs. a-c at ResearchGate),
a skipper Jonaspyge
elizabethae (ResearchGate),
a glassy-wing moth Pseudohemihyalea
labeculoides (MNHN),
and the damselflies Amphipteryx jaroli (ResearchGate)
and Palaemnema lorae
(GBIF).
Land snails known only from Honduras include Epirobia adusta (iNaturalist),
Euglandina hyperion
and Euglandina encladus
(BHL),
Helicina hondurana
and Myxastyla
(or Streptosyla)
coxeni
(both at Google
Books) and Myaxis
leei (FLMNH
WM).
Other endemic invertebrates include a freshwater crab Potamocarcinus roatensis
(iNaturalist),
a cave dwelling shrimp Typhlatya
utilaensis
(p. 10 of CaveBiology.com
WM
pdf), the
scorpions Diplocentrus
insularis (Scorpion
Files) and Centruroides
hirsuticauda (ResearchGate),
a tarantula Mygalarachne
brevipes (p. 3 of SEA WM
pdf), a trapdoor spider Ummidia
hondurena (ZooKeys),
the harvestmen Cynorta
bromeliacia (iNaturalist)
and Eucynorta
rooneyi (ResearchGate),
a nudibranch Doriopsilla
tishae (Slug Site),
and several marine snails: Darrylia
harryleei (Jaxshells WM),
Voluta sunderlandi
(Google
Books), Murexsul chesleri (GBIF),
Conus
sunderlandi (Jaxshells WM),
Purpuriconus kulkulcan
(fig. 7 at ResearchGate),
and Conus
harlandi (Eddie
Hardy).
The most remarkable of 263 vascular plants endemic to Honduras (Zamorano
pdf) may be the recently rediscovered Haptanthus
hazlettii (flickr)
(Wikipedia),
sometimes considered the sole species in an endemic family
Haptanthaceae (but recent research suggests it belongs in Buxaceae).
Another endemic genus is Hondurodendron
(ResearchGate)
(Tropicos WM).
Other endemic plants include the palms Cryosophila williamsii (Palmpedia) and Chamaedorea frondosa (PACSOA), the cycads Zamia standleyi (Cycad Pages WM) and Ceratozamia hondurensis (ARKive WM), the bromeliads Tillandsia copanensis (flickr) and Tillandsia hondurensis (Bromeliads in Australia), Ilex williamsii (iNaturalist), Opuntia hondurensis (iNaturalist), Acanthocereus lempirensis (ABM pdf), Anthurium lancetillense (IAS WM), Connarus popenoei (p. 3 of Field Museum pdf), Alfaroa hondurensis (iNaturalist), Styrax paulhousei (BRIT pdf), Eugenia coyolensis (p. 19 of FECOMOL pdf), Sommera cusucoana (PhytoKeys), Pinguicula hondurensis (ResearchGate), Saurauia molinae (iNaturalist), Leucaena lempirana (polyploid.net), Oreopanax lempiranus (iNaturalist), Palicourea hondurensis (iNaturalist), Begonia hondurensis (iNaturalist), Magnolia darioi (GBIF), and the orchids Sobralia yaninae (iNaturalist) and Epidendrum yojoaense (iNaturalist).
Endemic non-vascular plants include the mosses Orthostichopsis fornicata
(BHL)
(GBIF)
and Pireella hondurensis
(BHL).
Endemic lichens include Ocellularia
comayaguana (GBIF).
Fungi known only from Honduras include Tylopilus hondurensis
(GBIF)
and Trechispora
hondurensis (ResearchGate).
Honduras is part of the Mesoamerica biodiversity hotspot (Biodiversity
Hotspots WM)
and its east coast forms a portion of the Western
Caribbean coral reef hotspot (Columbia
Univ. WM pdf).