Species Magilaoma penolensis (Cox, 1868)

Museums

Regional Maps

• Helix penolensis Cox, J.C. 1868. On some new species of Australian land shells. Proceedings of the Zoological Society of London 1867: 722-726 [3 Apr. 1868] [724].

  Type data:

   
  Syntype(s) AM C60539 2 specimens, Penola, SA; AM C129441 1 specimen, Penola, SA.
• Helix pictilis Tate, R. 1878. Descriptions of three new species of Helix from South Australia. Proceedings of the Linnean Society of New South Wales 2: 290-291 [June 1878] [290].

  Type data:

   Holotype SAMA D13768, Cape Northumberland Cliffs, SA.
  Paratype(s) AM C512 3 specimens; AM C114523 1 specimen.
• Magilaoma parpictilis Iredale, T. 1937. A basic list of the land Mollusca of Australia. The Australian Zoologist 8: 287-333 [12 Mar. 1937] [317].

  Type data:

   Holotype AM C129154, Duck River, Circular Head, NW TAS.

Taxonomic Decision for Synonymy

• Iredale, T. 1937. A basic list of the land Mollusca of Australia. The Australian Zoologist 8: 287-333 [12 Mar. 1937] [317]
• Smith, B.J. & Kershaw, R.C. 1979. Field Guide to the Non-marine Molluscs of South-eastern Australia. Canberra : A.N.U. Press 285 pp. [265]

Introduction

Magilaoma penolensis is distinguished by the combination of trochoidal shell, strongly angulate whorls and tiny umbilicus.

Distribution

States

New South Wales, South Australia, Tasmania, Victoria

IBRA and IMCRA regions

IBRA

NSW, SA, Tas, Vic: Australian Alps (AA), Flinders (FLI), King (KIN), Murray Darling Depression (MDD), Naracoorte Coastal Plain (NCP), South Eastern Highlands (SEH), Tasmanian Central Highlands (TCH), Tasmanian South East (TSE), Tasmanian West (TWE), Victorian Midlands (VM), Victorian Volcanic Plain (VVP)

Distribution References

Ecological Descriptors

Closed forest, litter, open scrub, woodland.

Diagnosis

Shell very small, light brown, trochoidal with a low conical spire; whorls angular; protoconch with weak spiral cords, teleoconch sculpture of radial ribs with periostracal hairs at the whorl periphery; microsculpture of radial growth threads and fine spiral lirae; umbilicus narrowly open; diameter 3.5mm.

History of changes