Haliotis scalaris

Haliotis scalaris, common name the staircase abalone or the ridged ear abalone, is a species of sea snail, a marine gastropod mollusk in the family Haliotidae, the abalones.[1]

Subspecies
  • Haliotis scalaris emmae Reeve, 1846
  • Haliotis scalaris scalaris (Leach, 1814)

Haliotis scalaris
Apical view of a shell of Haliotis scalaris
Scientific classification
Kingdom: Animalia
Phylum: Mollusca
Class: Gastropoda
Clade: Vetigastropoda
Family: Haliotidae
Genus: Haliotis
Species:
H. scalaris
Binomial name
Haliotis scalaris
(Leach, 1814)
Synonyms[1]
  • Haliotis rubicundus Gray, J.E., 1826
  • Haliotis (Haliotis) crenata Swainson, W.A., 1822
  • Haliotis (Haliotis) tricostalis Lamarck, J.B.P.A. de, 1822
  • Haliotis (Haliotis) tricostata Wood, S.V., 1828
  • Padollus scalaris Leach, 1814 (original combination)
  • Padollus tricostalis H. & A. Adams

Description

The size of the shell varies between 60 mm and 100 mm. "The depressed shell has a rounded-oval shape, showing a strong spiral rib on each side of the row of 5 to 6 open perforations, and prominent elevated radiating lamellae around the spire. The shell is moderately large but thin, of the depressed, irregularly oval shape. Its color pattern is reddish or variegated olive and green. The surface has a strong rounded ridge inside of the row of elevated tubular holes, and a smaller, nodose ridge outside of it. Above it is finely striated spirally, and with coarse raised lamellae between the spire and the inner spiral rib. Its inner surface is silvery and very iridescent, with excavations corresponding to the elevations of the outer surface. The columellar plate is narrow, and obliquely truncated below." [2]

Distribution

This marine species is endemic to Australia and occurs from South West (Western Australia) to Victoria including Tasmania.

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References
  1. Haliotis scalaris (Leach, 1814). Retrieved through: World Register of Marine Species on 5 February 2013.
  2. H.A. Pilsbry (1890) Manual of Conchology XII; Academy of Natural Sciences, Philadelphia, 1890 (described as Haliotis tricostalis)
  • Wilson, B. 1993. Australian Marine Shells. Prosobranch Gastropods. Kallaroo, Western Australia : Odyssey Publishing Vol. 1 408 pp. [
  • Geiger D.L. & Poppe G.T. (2000). A Conchological Iconography: The family Haliotidae. Conchbooks, Hackenheim Germany. 135pp 83pls
  • Geiger D.L. & Owen B. (2012) Abalone: Worldwide Haliotidae. Hackenheim: Conchbooks. viii + 361 pp.
  • "Haliotis (Padollus) scalaris scalaris". Gastropods.com. Retrieved 16 January 2019.
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