Pommerhelix monacha

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Pommerhelix monacha
Pommerhelix monacha shell Mt Wilson.jpg
An acid-eroded shell of Pommerhelix monacha in the Mount Wilson rainforest, Blue Mountains National Park, Australia
Scientific classification
Kingdom:
Animalia
Phylum:
Mollusca
Class:
Gastropoda
(unranked):
clade Heterobranchia
clade Euthyneura
clade Panpulmonata
clade Eupulmonata
clade Stylommatophora
informal group Sigmurethra
Superfamily:
Helicoidea
Family:
Camaenidae
Genus:
Pommerhelix
Species:
P. monacha
Binomial name
Pommerhelix monacha
(Pfeiffer, 1859) [1]
Synonyms [2]
  • Badistes bowdenae
  • Galaxias monacha
  • Hadra monacha
  • Helix monachaPfeiffer, 1859
  • Helix cailletiCrosse, 1864
  • Helix cailleti pallidiorCrosse, 1864
  • Helix (Pomatia) monacha
  • Helix (Dorcasia) cailleti [3]
  • Helix (Badistes) monacha [4]
  • Helix (Badistes) cailleti
  • Meridolum bowdenaeMcLauchlan, 1951 (nomen nudum)
  • Sauroconcha bowdenae(McLauchlan, 1954)
  • Thersites cailleti

Pommerhelix monacha is a species of air-breathing land snail, a terrestrial pulmonate gastropod mollusc in the family Camaenidae. [5]

Contents

This species is found in eastern Australia.

Distribution

This snail is found in high altitude rainforests in Blue Mountains, [2] central eastern New South Wales, Australia.

The type locality is "Australia", which can be specified to Sassafras Gully, Springwood, New South Wales, Australia. [2]

Apertural view of a shell of Pommerhelix monacha Pommerhelix monacha shell.png
Apertural view of a shell of Pommerhelix monacha

Description

The shell of Pommerhelix monacha is subglobose (almost round). [2] The shell has 5.6–6.0 whorls. The color of the shell is dark brown to black, [2] but it can also be dark red or purple in colour. [6] The shell sculpture consists of zigzag ridges combined with small ridges on the periostracum. [2] The umbilicus is closed. [2] The aperture is roundly ovate in shape. [2]

The width of the shell is 26.2-30.3 mm. [2] The height of the shell is 18.1-23.2 mm. [2]

The visible soft parts are a yellowish grey in colour: [6] the body is grey to dark grey [2] and the mantle is dark yellow or orange. [2]

An apertural view of a shell of Pommerhelix monacha Pommerhelix monacha shell 2.png
An apertural view of a shell of Pommerhelix monacha
An umbilical view of a shell of Pommerhelix monacha Pommerhelix monacha shell 3.png
An umbilical view of a shell of Pommerhelix monacha

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References

  1. ↑ Pfeiffer L. K. G. (1859). P. Z. S. page 25. plate 43, figure 7.
  2. 1 2 3 4 5 6 7 8 9 10 11 12 Clark S. A. (2009). "A review of the land snail genus Meridolum (Gastropoda: Camaenidae) from central New South Wales, Australia". Molluscan Research 29(2): 61-120. abstract.
  3. ↑ Tryon G. W. (1887). Manual of Conchology, structural and systematic, with illustrations of the species. Second series: Pulmonata. Volume 3. Helicidae - Volume I., page 216, plate 50, figs. 27-28.
  4. ↑ Pilsbry H. A. (1890). Manual of Conchology, structural and systematic, with illustrations of the species. Second series: Pulmonata. Volume 6. Helicidae - Volume IV. page 133, plate 43, fig. 39.
  5. ↑ MolluscaBase eds. (2022). MolluscaBase. Pommerhelix monacha (Pfeiffer, 1859). Accessed through: World Register of Marine Species at: https://www.marinespecies.org/aphia.php?p=taxdetails&id=1149995 on 2022-02-06
  6. 1 2 Michael Shea, Australian Museum, personal communication.
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