The Natural Heritage & Endangered Species Program creates fact sheets for many species on the Massachusetts Endangered Species List (MESA List) to provide information on the life history, distribution, and status of these species to the public.  This page includes fact sheets for species that have subsequently been removed from the MESA List. Please note that fact sheets are not available for all species in Massachusetts, or for all species that have ever been on the MESA List. Most of these fact sheets were written when the species were on the state list of rare species, and were updated only with the change of status.

Vertebrates

Common NameScientific Name
Four-toed Salamander pdf format of Four-toed Salamander Hemidactylium scutatum
Spring Salamander pdf format of Spring Salamander Gyrinophilus p. porphyriticus
Green Heron pdf format of Green Heron Butorides virescens
Marsh Wren pdf format of Marsh Wren Cistothorus palustris
Sora pdf format of Sora Porzana carolina
Virginia Rail pdf format of Virginia Rail Rallus limicola

Invertebrates

Common NameScientific Name
Elderberry Long-horned Beetle pdf format of Elderberry Long-horned Beetle Desmocerus palliatus
Arrow Clubtail pdf format of Arrow Clubtail Stylurus spiniceps
Beaver Pond Clubtail Dragonfly pdf format of Beaver Pond Clubtail Dragonfly Gomphus borealis
Zebra Clubtail pdf format of Zebra Clubtail  Stylurus scudderi
New England Bluet pdf format of New England Bluet  Enallagma laterale
Triangle Floater pdf format of Triangle Floater  Alasmidonta undulata

Plants

Common NameScientific Name
Butterfly-weed pdf format of Butterfly-weed  Asclepias tuberosa
Black Maple pdf format of Black Maple  Acer nigrum
Goldie's Fern pdf format of Goldie's Fern  Dryopteris goldiana (Hook) A. Gray
Nantucket Shadbush pdf format of Nantucket Shadbush  Amelanchier nantucketensis
Pendulus Bulrush pdf format of Pendulus Bulrush  Scirpus pendulus
River Bulrush pdf format of River Bulrush  Bolboschoenus fluviatilis
Broom Crowberry pdf format of corema_conradii Corema conradii
Threadfoot pdf format of podostemum_ceratophyllum Podostemum ceratophyllum