Haliotis jacnensis, the Jacna abalone, is a species of marine gastropod in the family Haliotidae.
Description The shell size varies between . The oblong-ovate shell is spirally peculiarly rudely ridged. The ridges are very irregular and rather scaly, somewhat smooth next the perforations which are slightly tubiferous and distant. The coloration is reddish-orange. The interior surface is silvery. This is a very characteristic species, to which there is little or no approximation in any other.Pilsbry, H. A. (1890) Manual of Conchology XII; Academy of Natural Sciences, Philadelphia
Subspecies There are two subspecies: Haliotis jacnensis jacnensis Reeve, 1846 Haliotis jacnensis kershawi Owen, 2012
Distribution This species is distributed in the western Pacific Ocean, around the coasts of American Samoa, Fiji, Guam, Indonesia, Japan, Micronesia, New Caledonia, Niue, the Northern Mariana Islands, the Philippines, the Solomon Islands, Tonga, Tuvalu and Vanuatu. It resides at depths between .
References
Further reading Geiger D.L. & Poppe G.T. (2000). A Conchological Iconography: The family Haliotidae. Conchbooks, Hackenheim Germany. Geiger D.L. & Owen B. (2012) Abalone: Worldwide Haliotidae. Hackenheim: Conchbooks. p. 53
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