Rhode Island
Species of Greatest Conservation Need (2015)
| Scientific Name | Common Name | Subtaxon | S-Rank | State Listing | RSGCN Concern |
|---|---|---|---|---|---|
| Lasiurus cinereus | Hoary Bat | Bats | Moderate | ||
| Lepidochelys kempii | Kemp's Ridley Sea Turtle | Sea Turtles | Very High | ||
| Lepomis auritus | Redbreast Sunfish | Freshwater Fish | |||
| Lestes unguiculatus | Lyre-tipped Spreadwing | Dragonflies and Damselflies | |||
| Lethenteron appendix | American Brook Lamprey | Freshwater Fish | High | ||
| Leucania extincta | A Moth | Moths | |||
| Leucorrhinia glacialis | Crimson-ringed Whiteface | Dragonflies and Damselflies | |||
| Libinia dubia | Longnose Spide Crab | Marine Crustaceans | |||
| Libinia emarginata | Spider Crab | Marine Crustaceans | |||
| Ligumia nasuta | Eastern Pondmussel | Freshwater Bivalves | High | ||
| Limnodromus griseus | Short-billed Dowitcher | Shorebirds | |||
| Limulus polyphemus | Horseshoe Crab | Spiders and Harvestmen | Moderate | ||
| Lintneria eremitus | Hermit Sphinx | Moths | |||
| Lithobates pipiens | Northern Leopard Frog | Frogs and Toads | Moderate | ||
| Lithobates sylvaticus | Wood Frog | Frogs and Toads | |||
| Lithomoia germana | American Brindle Moth | Moths | |||
| Lithophane thaxteri | Thaxter's Pinon Moth | Moths | |||
| Lithophane viridipallens | Pale Green Pinion Moth | Moths | |||
| Loligo pealeii | Long Finned Squid | Marine Invertebrate | |||
| Lophodytes cucullatus | Hooded Merganser | Waterfowl | |||
| Lucania parva | Rainwater Killifish | Diadromous Fish | |||
| Luxilus cornutus | Common Shiner | Freshwater Fish | |||
| Lynx rufus | Bobcat | Other Mammals | |||
| Macrochilo hypocritalis | Twin-dotted Macrochilo Moth | Moths | |||
| Macrochilo louisiana | A Noctuid Moth | Moths | |||
| Malaclemys t. terrapin | Northern Diamond-backed Terrapin | Turtles | Endangered | ||
| Margaritifera margaritifera | Eastern Pearlshell | Freshwater Bivalves | Endangered | Moderate | |
| Marphysa belli | Red Gilled Worm | Worms, Leeches, and other Annelids | |||
| Megaptera novaeangliae | Humpback Whale | Marine Fish | High | ||
| Melampus bidentatus | Marsh Snail | Terrestrial Snails | |||
| Melanitta americana | American/Black Scoter | Waterfowl | |||
| Melanitta fusca | White-winged Scoter | Waterfowl | |||
| Melanitta perspicillata | Surf Scoter | Waterfowl | |||
| Menidia beryllina | Inland Silverside | Freshwater Fish | |||
| Menidia menidia | Atlantic Silverside | Marine Fish | |||
| Mercenaria mercenaria | Northern Quahog | Mollusc | |||
| Mergus serrator | Red-breasted Merganser | Waterfowl | |||
| Metarranthis pilosaria | Coastal Bog Metarranthis | Moths | High | ||
| Metaxaglaea violacea | Holly Sallow Moth | Moths | |||
| Microgadus tomcod | Atlantic Tomcod | Marine Fish | Moderate | ||
| Microtus pennsylvanicus provectus | Block Island Meadow Vole | Small Mammals:Rodentia | High | ||
| Mniotilta varia | Black-and-white Warbler | Landbirds | |||
| Modiolus modiolus | Northern Horse Mussel | Mollusc | |||
| Morone americana | White Perch | Diadromous Fish | |||
| Morus bassanus | Northern Gannet | Waterbirds | |||
| Mya arenaria | Soft Shell Clam | Mollusc | |||
| Myiarchus crinitus | Great Crested Flycatcher | Landbirds | |||
| Myotis leibii | Eastern Small-footed Myotis | Bats | High | ||
| Myotis lucifugus | Little Brown Myotis | Bats | Very High | ||
| Myotis septentrionalis | Northern Long-eared Bat | Bats | Very High |