Featured Species
Threatened and endangered species under the jurisdiction of the U.S. Fish and Wildlife Service in the U.S. Caribbean (Puerto Rico and U.S. Virgin Islands)
Classification: (T= Threatened, E= Endangered, D-R= Delisted due to Recovery, P-E= Proposed Endangered, Ex= Extirpated); Jurisdiction: (PR=Puerto Rico, USVI= U. S. Virgin Island)
| Scientific name | Spanish name | English name | Classification | Jurisdiction |
| Amphibians | ||||
| Eleutherodactylus cooki | Guajon | Puerto Rican rock frog | T | PR |
| Eleutherodactylus jasperi | Coqui dorado | Golden coqui | T | PR |
| Eleutherodactylus juanariveroi | Coquí llanero | E | PR | |
| Peltophryne lemur | Sapo concho puertorriqueño | Puerto Rican crested toad | T | PR |
| Reptiles | ||||
| Ameiva polops | Siguana de Santa Cruz | St. Croix ground lizard | E | USVI |
| Anolis roosevelti | Lagartijo gigante de Culebra | Culebra giant anole | E | PR |
| Caretta caretta | Cabezona o Caguama | Loggerhead sea turtle | T | PR-USVI |
| Chelonia mydas | Peje blanco | Green sea turtle | T | PR-USVI |
| Cyclura cornuta stejnegeri | Iguana de Mona | Mona ground iguana | T | PR |
| Dermochelys coriacea | Tinglar | Leatherback sea turtle | E | PR-USVI |
| Epicrates inornatus (now known as Chilabothrus inornatus) | Culebrón de Puerto Rico | Puerto Rican boa | E | PR |
| Epicrates monensis granti (now known as Chilabothrus granti) | Boa arborea de Islas Virgenes | Virgin Islands tree boa | E | PR-USVI |
| Epicrates monensis monensis (now known as Chilabothrus monensis) | Boa de Mona | Mona boa | T | PR |
| Eretmochelys imbricata | Carey | Hawksbill sea turtle | E | PR-USVI |
| Sphaerodactylus micropithecus | Salamanquita de Monito | Monito gecko | D-R | PR |
| Birds | ||||
| Accipiter striatus venator | Falcón de sierra | Puerto Rican sharp-shinned hawk | E | PR |
| Agelaius xanthomus | Mariquita | Yellow-shouldered blackbird | E | PR |
| Amazona vittata vittata | Cotorra puertorriqueña | Puerto Rican parrot | E | PR |
| Buteo platypterus brunnescens | Guarguao de bosque | Puerto Rican broad-winged hawk | E | PR |
| Calidris canutus rufa | Rufa Red Knot | T | PR-USVI | |
| Caprimulgus noctitherus | Guabairo | Puerto Rican nightjar | E | PR |
| Charadrius melodus | Playero melódico | Piping plover | T | PR-USVI |
| Corvus leucognaphalus | Cuervo pescuesiblanco | White-necked crow | Ex | PR |
| Laterallis jamicensis jamaicensis | Eastern Black rail | T | PR-USVI | |
| Patagioenas inornata wetmorei | Paloma sabanera | Puerto Rican plain pigeon | E | PR |
| Pterodroma hasitata | Petrel | Black-capped petrel | P-T | |
| Setophaga angelae | Reinita de bosque enano | Elfin-woods warbler | T | PR |
| Sterna dougallii dougallii | Palometa | Roseate tern | T | PR-USVI |
| Pelecanus occidentalis | Pelicano pardo | Brown pelican | D-R | PR-USVI |
| Insects | ||||
| Atlantea tulita | Mariposa arlequin | Puerto Rico harlequin butterfly | P-E | PR |
| Mammals | ||||
| Trichechus manatus | Manatí antillano | Antillean manatee | E | PR- USVI |
| Trees and Shrubs | ||||
| Auerodendron pauciflorum | E | PR | ||
| Banara vanderbiltii | Palo de ramón | E | PR | |
| Buxus vahlii | Vahl’s boxwood | E | PR-USVI | |
| Callicarpa ampla | Capá rosa | E | PR | |
| Calyptranthes thomasiana | E | USVI | ||
| Calyptronoma rivalis | Palma manaca | T | PR | |
| Catesbaea melanocarpa | E | PR-USVI | ||
| Chamaecrista glandulosa var. mirabilis | E | PR | ||
| Cordia bellonis(now known as Varronia bellonis) | E | PR | ||
| Cornutia obovata | Palo de Nigua | E | PR | |
| Crescentia portoricensis | Higuero de sierra | E | PR | |
| Daphnopsis helleriana | E | PR | ||
| Eugenia haematocarpa | Uvillo | E | PR | |
| Eugenia woodburyana | E | PR | ||
| Goetzea elegans | Matabuey | Beautiful goetzea | E | PR |
| Gonocalyx concolor | E | PR | ||
| Ilex cookii | Cook’s holly | E | PR | |
| Ilex sintenisii | E | PR | ||
| Juglans jamaicensis | Nogal | West Indian walnut | E | PR |
| Lyonia truncata var. proctorii | E | PR | ||
| Mitracarpus polycladus | E | PR | ||
| Mitracarpus maxwelliae | E | PR | ||
| Myrcia paganii | E | PR | ||
| Ottoschulzia rhodoxylon | Palo de rosa | E | PR | |
| Pleodendron macranthum | Chupacallos | E | PR | |
| Schoepfia arenaria | T | PR | ||
| Solanum conocarpum | Marron bacora | E | USVI | |
| Solanum drymophilum | Erubia | E | PR | |
| Stahlia monosperma (now known as Libidibia monosperma) | Cóbana negra | T | PR | |
| Styrax portoricensis | Palo de jazmín | E | PR | |
| Ternstroemia luquillensis | Palo colorado | E | PR | |
| Ternstroemia subsessilis | E | PR | ||
| Trichilia triacantha | Bariaco | E | PR | |
| Varronia rupicola | T | PR | ||
| Vernonia proctorii | E | PR | ||
| Zanthoxylum thomasianum | St. Thomas prickly ash | E | PR-USVI | |
| Ferns | ||||
| Adiantum vivesii | E | PR | ||
| Cyathea dryopteroides | Helecho arbóreo de bosque enano | Elfin tree fern | E | PR |
| Elaphoglossum serpens | E | PR | ||
| Polystichum calderonense | E | PR | ||
| Tectaria estremerana | E | PR | ||
| Thelypteris inabonensis | E | PR | ||
| Thelypteris verecunda | E | PR | ||
| Thelypteris yaucoensis | E | PR | ||
| Cacti | ||||
| Harrisia portoricensis | Higo chumbo | T | PR | |
| Leptocereus grantianus | E | PR | ||
| Orchids | ||||
| Cranichis ricartii | E | PR | ||
| Lepanthes eltoroensis | D-R | PR | ||
| Herbaceous plants and Herbs | ||||
| Agave eggersiana | E | USVI | ||
| Aristida chaseae | E | PR | ||
| Aristida portoricensis | Pelos del diablo | E | PR | |
| Gesneria pauciflora | T | PR | ||
| Peperomia wheeleri | Wheeler's peperomia | E | PR |