A variety of salamanders, snakes and frogs are also present in the Wine Country. The federally listed as threatened California red-legged frog is present in the northern reach draining the south slopes of Annadel State Park. Several endangered species (mostly associated with the Napa Sonoma Marsh) present include Ridgway's rail ("Rallus obsoletus"), California black rail ("Laterallus jamaicensis"), California brown pelican ("Pelicanus occudentalis"), California freshwater shrimp ("Syncaris pacifica"), salt marsh harvest mouse ("Reithrodontomys raviventris" ), Suisun shrew ("Sorex ornatus sinuosus"), Sacramento splittail ("Pogonichtys macrolepidotus"). The above are endangered species with the exception of the splittail, steelhead and black rail, which are federally designated as threatened.