| Pseudemys rubriventris |
Northern Red-bellied Cooter (Massachusetts pop.) |
Reptile |
Turtles |
100% (NEAFWA Endemic) |
RSGCN |
| Pseudopleuronectes americanus |
Winter Flounder |
Fish |
Marine Fish |
75-100% |
RSGCN |
| Ptychobranchus subtentus |
Fluted Kidneyshell |
Mollusc |
Freshwater Bivalves |
<25% |
RSGCN |
| Pyractomena ecostata |
Keel-necked Firefly |
Insect:Coleoptera |
Other Beetles |
<25% |
RSGCN |
| Pyrgus centaureae wyandot |
Appalachian Grizzled Skipper |
Insect:Lepidoptera |
Butterflies and Skippers |
25-50% |
RSGCN |
| Remenus kirchneri |
Blue Ridge Springfly |
Insect:EPT |
Stoneflies |
100% (NEAFWA Endemic) |
RSGCN |
| Rhincodon typus |
Whale Shark |
Fish |
Marine Fish |
25-50% |
RSGCN |
| Rhithrogena brunneotincta |
Brown Flat-headed Mayfly |
Insect:EPT |
Mayflies |
100% (NEAFWA Endemic) |
Proposed RSGCN |
| Rhithrogena jejuna |
Hungry Flat-headed Mayfly |
Insect:EPT |
Mayflies |
25-50% |
Proposed Watchlist [Assessment Priority] |
| Rynchops niger |
Black Skimmer |
Bird |
Waterbirds |
<25% |
RSGCN |
| Salvelinus alpinus oquassa |
Landlocked Arctic Char |
Fish |
Freshwater Fish |
100% (NEAFWA Endemic) |
RSGCN |
| Satyrium kingi |
King's Hairstreak |
Insect:Lepidoptera |
Butterflies and Skippers |
<25% |
Watchlist [Defer to SEAFWA] |
| Sciurus niger cinereus |
Delmarva Fox Squirrel |
Mammal |
Small Mammals:Rodentia |
100% (NEAFWA Endemic) |
RSGCN |
| Setophaga cerulea |
Cerulean Warbler |
Bird |
Landbirds |
<25% |
RSGCN |
| Setophaga striata |
Blackpoll Warbler |
Bird |
Landbirds |
25-50% |
Watchlist [Assessment Priority] |
| Simpsonaias ambigua |
Salamander Mussel |
Mollusc |
Freshwater Bivalves |
<25% |
RSGCN |
| Siphlonisca aerodromia |
Tomah Mayfly |
Insect:EPT |
Mayflies |
100% (NEAFWA Endemic) |
RSGCN |
| Siphlonurus barbaroides |
Wild Primitive Minnow Mayfly |
Insect:EPT |
Mayflies |
100% (NEAFWA Endemic) |
RSGCN |
| Siphlonurus barbarus |
Barbarous Primitive Minnow Mayfly |
Insect:EPT |
Mayflies |
75-100% |
RSGCN |
| Siphlonurus demaryi |
Demary's Primitive Minnow Mayfly |
Insect:EPT |
Mayflies |
100% (NEAFWA Endemic) |
RSGCN |
| Siphloplecton costalense |
Speith's Great Speckled Olive Mayfly |
Insect:EPT |
Mayflies |
100% (NEAFWA Endemic) |
Watchlist [Assessment Priority] |
| Sistrurus catenatus |
Eastern Massasauga |
Reptile |
Snakes |
<25% |
RSGCN |
| Somatochlora forcipata |
Forcipate Emerald |
Insect:Odonata |
Dragonflies and Damselflies |
75-100% |
RSGCN |
| Somatochlora georgiana |
Coppery Emerald |
Insect:Odonata |
Dragonflies and Damselflies |
<25% |
RSGCN |
| Somatochlora incurvata |
Incurvate Emerald |
Insect:Odonata |
Dragonflies and Damselflies |
75-100% |
RSGCN |
| Somatochlora kennedyi |
Kennedy's Emerald |
Insect:Odonata |
Dragonflies and Damselflies |
50-75% |
RSGCN |
| Sphinx canadensis |
Canadian Sphinx |
Insect:Lepidoptera |
Moths |
25-50% |
Watchlist [Defer to MAFWA] |
| Sphinx franckii |
Franck's Sphinx |
Insect:Lepidoptera |
Moths |
<25% |
Watchlist [Defer to MAFWA/SEAFWA] |
| Stenogomphurus rogersi |
Sable Clubtail |
Insect:Odonata |
Dragonflies and Damselflies |
50-75% |
RSGCN |
| Stenotrema simile |
Bear Creek Slitmouth |
Mollusc |
Terrestrial Snails |
100% (NEAFWA Endemic) |
RSGCN |
| Sterna forsteri |
Forster's Tern |
Bird |
Waterbirds |
<25% |
Watchlist [Defer to MAFWA] |
| Sternula antillarum |
Least Tern |
Bird |
Waterbirds |
25-50% |
RSGCN |
| Succinea pennsylvanica |
Penn Ambersnail |
Mollusc |
Terrestrial Snails |
100% (NEAFWA Endemic) |
Proposed Watchlist [Assessment Priority] |
| Sweltsa palearata |
Shenandoah Sallfly |
Insect:EPT |
Stoneflies |
100% (NEAFWA Endemic) |
RSGCN |
| Sweltsa pocahontas |
Pocahontas Sallfly |
Insect:EPT |
Stoneflies |
100% (NEAFWA Endemic) |
RSGCN |
| Synaptomys borealis sphagnicola |
Northern Bog Lemming |
Mammal |
Small Mammals:Rodentia |
75-100% |
RSGCN |
| Tallaperla lobata |
Lobed Roachfly |
Insect:EPT |
Stoneflies |
100% (NEAFWA Endemic) |
RSGCN |
| Tharsalea dorcas claytoni |
Clayton's Copper Butterfly |
Insect:Lepidoptera |
Butterflies and Skippers |
75-100% |
RSGCN |
| Theliderma cylindrica |
Rabbitsfoot |
Mollusc |
Freshwater Bivalves |
<25% |
RSGCN |
| Thoburnia hamiltoni |
Rustyside Sucker |
Fish |
Freshwater Fish |
75-100% |
RSGCN |
| Thunnus thynnus |
Bluefin Tuna |
Fish |
Marine Fish |
<25% |
RSGCN |
| Triodopsis picea |
Spruce Knob Threetooth |
Mollusc |
Terrestrial Snails |
100% (NEAFWA Endemic) |
Watchlist [Assessment Priority] |
| Triodopsis platysayoides |
Cheat Threetooth |
Mollusc |
Terrestrial Snails |
100% (NEAFWA Endemic) |
RSGCN |
| Utaperla gaspesiana |
Gaspe Sallfly |
Insect:EPT |
Stoneflies |
75-100% |
RSGCN |
| Ventridens coelaxis |
Bidentate Dome |
Mollusc |
Terrestrial Snails |
<25% |
Watchlist [Assessment Priority] |
| Zale lunifera |
Pine Barrens Zale Moth |
Insect:Lepidoptera |
Moths |
25-50% |
Watchlist [Assessment Priority] |