Rhode Island
Species of Greatest Conservation Need (2015)
| Scientific Name | Common Name | Subtaxon | S-Rank | State Listing | RSGCN Concern |
|---|---|---|---|---|---|
| Catocala badia | Bay Underwing | Moths | |||
| Catocala blandula | Charming Underwing | Moths | |||
| Catocala crataegi | Chokeberry Underwing | Moths | |||
| Catocala spp. | Underwing Moth sp. | Moths | |||
| Centropristis striata | Black Sea Bass | Marine Fish | Moderate | ||
| Ceratomia undulosa | Waved Sphinx | Moths | |||
| Ceriantheopsis americana | American Tube-dwelling Anemone | Corals and Anemones | |||
| Chaetaglaea tremula | Barrens Chaetaglaea | Moths | |||
| Chaetopterus variopedatus | Parchment Worm | Worms, Leeches, and other Annelids | |||
| Chaetura pelagica | Chimney Swift | Landbirds | Moderate | ||
| Charadrius melodus | Piping Plover | Shorebirds | |||
| Charadrius semipalmatus | Semipalmated Plover | Shorebirds | |||
| Chelonia mydas | Green Sea Turtle | Sea Turtles | Very High | ||
| Cicindela dorsalis dorsalis | Northeastern Beach Tiger Beetle | Tiger Beetles | |||
| Cicindela formosa generosa | Pine Barrens Tiger Beetle | Tiger Beetles | |||
| Cicindela hirticollis | Hairy-necked Tiger Beetle | Tiger Beetles | Moderate | ||
| Cicindela limbalis | Clay Banks Tiger Beetle | Tiger Beetles | |||
| Cicindela marginata | Salt Marsh Tiger Beetle | Tiger Beetles | |||
| Cicindela purpurea purpurea | Cow Path Tiger Beetle | Tiger Beetles | |||
| Cicindela rufiventris rufiventris | Eastern Red-bellied Tiger Beetle | Tiger Beetles | |||
| Cicindela scutellaris | Festive Tiger Beetle | Tiger Beetles | |||
| Cicindela tranquebarica | Oblique-lined Tiger Beetle | Tiger Beetles | |||
| Circus cyaneus | Northern Harrier | Landbirds | Endangered | ||
| Cistothorus palustris | Marsh Wren | Landbirds | |||
| Clemmys guttata | Spotted Turtle | Turtles | Protected | High | |
| Clupea harengus | Atlantic Herring | Marine Fish | High | ||
| Clymenella torquata | Bamboo Worm | Worms, Leeches, and other Annelids | |||
| Coccinella novemnotata | Nine-spotted Lady Beetle | Other Beetles | |||
| Coccyzus americanus | Yellow-billed Cuckoo | Landbirds | |||
| Coccyzus erythropthalmus | Black-billed Cuckoo | Landbirds | Moderate | ||
| Colaptes auratus | Northern Flicker | Landbirds | |||
| Coluber c. constrictor | Northern Black Racer | Snakes | |||
| Conservula anodonta | A Noctuid Moth | Moths | |||
| Copris fricator | A Dung Beetle | Other Beetles | |||
| Cordulegaster diastatops | Delta-spotted Spiketail | Dragonflies and Damselflies | |||
| Cordulegaster maculata | Twin-spotted Spiketail | Dragonflies and Damselflies | |||
| Cordulegaster obliqua | Arrowhead Spiketail | Dragonflies and Damselflies | |||
| Cotalpa lanigera | A Ground Beetle | Other Beetles | |||
| Crangon septemspinosa | Bay/Sand Shrimp | Marine Crustaceans | |||
| Crassostrea virginica | Eastern Oyster | Mollusc | |||
| Cratena pilata | Striped Nudibranch | Mollusc | |||
| Crotalus horridus | Timber Rattlesnake | Snakes | Protected | High | |
| Cybister fimbriolatus | A Predaceous Diving Beetle | Other Beetles | |||
| Cycnia inopinatus | Unexpected Cycnia Moth | Moths | |||
| Cynoscion regalis | Weakfish | Marine Fish | Very High | ||
| Cyprinodon variegatus | Sheepshead Minnow | Marine Fish | |||
| Danaus plexippus | Monarch | Butterflies and Skippers | Moderate | ||
| Darapsa versicolor | Hydrangea Sphinx Moth | Moths | |||
| Dargida rubripennis | The Pink Streak | Moths | |||
| Datana angusii | Angus's Datana | Moths |