Acmaea juanina is a species of sea snail or true limpet, a marine gastropod mollusc in the family Acmaeidae, one of the families of true limpets.{MolluscaBase eds. (2024). MolluscaBase. Acmaea juanina Odhner, 1922. Accessed through: World Register of Marine Species at: https://www.marinespecies.org/aphia.php?p=taxdetails&id=1433022 on 2024-03-07
Description (Original description) The ovate shell is of moderate height with its apex in the first third of its length. The anterior and lateral slopes are straight, the posterior one a little convex.
The sculpture consists of concentric striae and radiating ribs of alternating strength, 11 principal ones with finer ones in the interstices. The coarsest ribs (4 in front, I on each side and 5 behind the apex) as well as the apex are dark-violet in colour, olive-brown towards the periphery like the intervening ribs. The ground is white. The interior of the shell is white, with a chestnut centre and an olive-green margin.Odhner, N. H. (1922). Mollusca from Juan Fernandez and Easter Island. In Skottsberg C. (ed). The Natural History of Juan Fernandez and Easter Island. Almqvist & Wiksells Boktryckeri, Uppsala, pp. 219–253, pls. 8–9. The Natural History of Juan Fernández and Easter Island. 3 (Zoology), II(22): 219-254
Distribution This marine species occurs in the Pacific Ocean off Juan Fernandez and Desventuradas, Chile.
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