Endodonta chritenseni is a terrestrial snail species belonging to the family Endodontidae. First recorded in 1923, but not formally described until 2020, the species is endemic to the island of Nihoa, Hawaii.
Description.
The shell of "Endodonta christenseni" is lenticular, about 2.3 mm tall and 4.7 mm wide, with an umbillicate structure. Its trapezoidal aperture is partly blocked by 7–10 lamellar barriers. The shell color ranges from yellow-brown to reddish-brown with irregular patterns. It feeds on fungi, aiding spore dispersal, and helps break down leaf litter. They also provide a food source for birds. 
Distribution and habitat.
"Endodonta christenseni" is endemic to the island of Nihoa, Hawaii. The species lives primarily in clumps on the plant "Eragrostis variabilis".
Cultural significance.
"Endodonta christenseni" is culturally significant in Hawaii. The species is one of Hawaii's nine state snails.