On Tuesday, the U.S. Fish and Wildlife Service published new rules that require the agency to protect their critical habitat and prevent their possession, sale or transport, according to The Hill. 

The listings follow a lawsuit brought by WildEarth Guardians and the Center for Biological Diversity which sought to force the federal agency to review and act on more than 700 cases nationally. 

From the Center for Biological Diversity: 

The plants protected today are a stunning variety of colorful geraniums, sunflowers, bellflowers, vines, shrubs and trees from coastal, lowland, subalpine and cliff environments. They include the hala pepe, popolo, kookoolau, ‘awikiwiki and haha nui, among others. For some of the plant species, only a few individuals survive.

The three mollusks protected today include two species of Lanai tree snail and Newcomb’s tree snail. The snails are found only on wet cliffs where they live on specific host plants and eat fungus and algae. The Lanai tree snails are up to an inch tall and can live for 20 years, giving birth to four to six live young per year.

(Photo: Lanai tree snail, Hawaii Department of Land and Natural Resources)

— Sophie Cocke