From the LA Times:
On its 2015 list, the Fish and Wildlife Service included the ‘ea, or hawksbill turtle, as well as the green turtle, Ridley sea turtle, leatherback turtle and loggerhead turtle. Four mammals are considered endangered: the Hawaiian hoary bat; the kohola, or humpback whale; the sperm whale; and the endemic Hawaiian monk seal. Among the 34 endangered birds are the Hawaiian goose, or nene; the Maui parrotbill; the Nihoa millerbird; the red-legged stilt; and the i’o, or Hawaiian hawk. There were once 99 species of tree snails in the Islands; of the 25 that survive, nine are endangered. Fifteen anthropods are at risk, including the sphinx moth and the oceanic damselfly.
Among the endangered plants are a white hibiscus found only in Wailau Valley on Molokai; the lovely Hawaiian gardenia or na’u (although now widely cultivated in an effort to save it, there are only two or three plants remaining in the wild), the mountain silversword of Mauna Loa; the lo’ulu, or Pritchardia palm; and one small yellow campanula (Brighamia insignis) last seen on a cliff on Kauai.