Euhadra peliomphala is a species of air-breathing land snail, a terrestrial pulmonate gastropod mollusk in the family Bradybaenidae.
This species is endemic to Japan. The species exhibits exceptional geographical variation in its mitochondrial DNA.Hayashi, M. & S. Chiba. 2000. Intraspecific diversity of mitochondrial DNA in the land snail Euhadra peliomphala (Bradybaenidae). Biological Journal of the Linnean Society 70(3): 391–401.
Subspecies Euhadra peliomphala has 4 subspecies: Euhadra peliomphala kunoensis Kuroda in Masuda & Habe, 1989 Euhadra peliomphala nimbosa (Crosse, 1868) Euhadra peliomphala peliomphala (Pfeiffer, 1850) Euhadra peliomphala simodae (Jay, 1856)
Hormonal control As Euhadra peliomphala matures sexually, it develops a "head-wart" between the optic tentacles. The development of the "head-wart" parallels the development of the snail's reproductive system. The "head-wart" releases the steroid hormone, testosterone, throughout the body before mating.Naokuni Takeda. 1980 Hormonal control of head-wart development in the snail, Euhadra peliomphala. Embryol. exp. Morph. Vol. 60, pp. 57-69.
References
External links Information and images of Euhadra peliomphala