This species is restricted to the Wai'anae Mountains. The next most abundant tree snail species, A. sowerbyana , is found in the northern Ko'olau Mountains. With one exception, A. concavospira , the other extant Achatinella species are restricted to the Ko'olau Mountains. Usually only two or three snails are found in a single bush or tree. The snails occur primarily on native vegetation, but are occasionally seen on alien plants.
Individuals are hermaphroditic.
A single embryo is usually present in the uterus of adults, and embryos are found at all times of the year. Studies of A. mustelina revealed that adults reach sexual maturity at approximately 7 years of age and give birth to one to four young per year. Most of the extant Achatinella species occur only in small numbers and have restricted ranges. Go Back to previous page Source citations for this species data compilation available on request.