Introduction

The few species in this order have a broad limpet-like shell perched on top of the visceral mass, and a large pinnate gill projecting into the right-hand space between shell and foot. All the species are grazers on sponge tissue. Compiled from Burn (in press).

General References

Bouchet, P. & Rocroi, J.-P. 2005. Classification and nomenclator of gastropod families. Malacologia 47: 1–397 [261]

Burn, R. 2006. A checklist and bibliography of the Opisthobranchia (Mollusca: Gastropoda) of Victoria and the Bass Strait area, south-eastern Australia. Museum Victoria Science Report 10: 1-42

History of changes

History of changes

• Umbraculidae Dall, 1889.

  Type genus:

   Umbraculum Schumacher, 1817.

Introduction

Shell thick, solid, flattened, with thin periostracum present in places, often with attached massive growths. Animal large, high, tuberculate all over, with short tail and deep anterior groove wherein lie the rhinophores, oral tentacles and reproductive openings. Gill fills anterior and right hand cavity between shell and foot. Compiled from Burn (in press).

General References

Beesley, P.L., Ross, G.J.B. & Wells, A. (eds) 1998. Mollusca: The Southern Synthesis. Fauna of Australia. Melbourne : CSIRO Publishing Vol. 5(Part B) pp. vi–viii, 565–1234. [978]

Burn, R. 2006. A checklist and bibliography of the Opisthobranchia (Mollusca: Gastropoda) of Victoria and the Bass Strait area, south-eastern Australia. Museum Victoria Science Report 10: 1-42

History of changes

• Umbraculum Schumacher, C.F. 1817. Essai d'un Nouveau Systéme des Habitations des vers Testacés. Copenhagen : Schultz 287 pp., pls 1-22. [55, 177].

  Type species:

   Umbella chinensis Lamarck, 1801 (=Patella umbraculum [Lightfoot], 1786) by original designation.

Distribution

States

New South Wales, Northern Territory, Queensland, South Australia, Tasmania, Victoria, Western Australia

History of changes

• Patella umbraculum Lightfoot, J. 1786. A Catalogue of the Portland Museum, lately the property of the Duchess Dowager of Portland: deceased which will be sold by auction, by Mr. Skinner and Co., etc. London viii, 194 pp. + 44 pp. [178].

  Type data:

   Status unknown, Chinese Seas.
• Patella sinicum Gmelin J.F. 1791. Caroli a Linné. Systema Naturae per regna tria naturae, secundum classes, ordines, genera, species, cum characteribus, differentiis, synonymis, locis. Lipsiae : Georg. Emanuel. Beer Vermes. Vol. 1(Part 6) pp. 3021–3910. [officially regarded by the ICZN Opinion 296 (26 Oct 1954) as the 13th edition of Systema Naturae] [3720].

Generic Combinations

• Umbraculum sinicum (Gmelin, 1791). —
  Gabriel, C.J. 1962. Additions to the marine molluscan fauna of south eastern Australia including descriptions of new genus Pillarginella, six new marine species and two subspecies. Memoirs of the National Museum of Victoria, Melbourne 25: 177–210, 1 pl. [Date published 1 May 1962] [201]
  Wells, F.E. & Bryce, C.W. 1993. Sea Slugs of Western Australia. Perth : Western Australian Museum 184 pp. [51-52, photo: species 50]
• Umbraculum umbraculum (Lightfoot, 1786). —
  Coleman, N. 2001. 1001 Nudibranchs - Catalogue of Indo-Pacific Sea Slugs. Springwood, Queensland : Neville Coleman’s Underwater Geographic Pty Ltd 144 pp. [135 (photo)]
  Burn, R. 2006. A checklist and bibliography of the Opisthobranchia (Mollusca: Gastropoda) of Victoria and the Bass Strait area, south-eastern Australia. Museum Victoria Science Report 10: 1-42 [13]

Distribution

States

New South Wales, Northern Territory, Queensland, South Australia, Tasmania, Victoria, Western Australia

Extra Distribution Information

Circum-global tropical and temperate seas, occurring in waters to 100 m deep off south-eastern Tasmania.

Ecological Descriptors

Marine.

History of changes

• Tylodinidae Gray, 1847.

  Type genus:

   Tylodina Rafinesque, 1814.

Introduction

Shell thin and fragile, covered by a thick ribbed or thatch-like periostracum. Animal large, elongate, smooth, with long rounded tail, and large basally swollen laterally grooved rhinophores, enrolled oral tentacles, gill on right side, and invariably bright yellow in life. This family contains a single Australian species. Compiled from Burn (in press).

General References

Beesley, P.L., Ross, G.J.B. & Wells, A. (eds) 1998. Mollusca: The Southern Synthesis. Fauna of Australia. Melbourne : CSIRO Publishing Vol. 5(Part B) pp. vi–viii, 565–1234. [977]

Burn, R. 2006. A checklist and bibliography of the Opisthobranchia (Mollusca: Gastropoda) of Victoria and the Bass Strait area, south-eastern Australia. Museum Victoria Science Report 10: 1-42

History of changes

• Tylodina Rafinesque, C.S. 1814. Definizione di 36 nuovi generi di animali marini della Sicilia (pp. 161-166). In: Specchio della Scienze, o Giornale enciclopedico di Sicilia. Deposito letterario delle moderne cognizioni, scoperte et osservazioni sopra le scienze ed arti. Palermo : Tipografia Francesco Abate Vol. 2 196 pp. [162].

  Type species:

   Tylodina punctulata Rafinesque, 1814 (=Patella perversa Gmelin, 1791) by original designation.

Distribution

States

New South Wales, Queensland, South Australia, Tasmania, Victoria, Western Australia

History of changes

• Umbrella corticalis Tate, R. 1889. Descriptions of some new species of marine Mollusca from South Australia and Victoria. Transactions of the Royal Society of South Australia 11: 60-66, pl. 11 [Date published April] [65, pl. 11, fig. 11].

  Type data:

   Status unknown, South Channel, Port Phillip, VIC, 14–34 m.

Generic Combinations

• Tylodina corticalis (Tate, 1889). —
  Burn, R. 1989. Opisthobranchs (Subclass Opisthobranchia). In, Shepherd, S.A. & Thomas, I.M (eds). Marine Invertebrates of Southern Australia. Part II. Adelaide : South Australian Government Printing Division. [pl. 47.5]
  Wells, F.E. & Bryce, C.W. 1993. Sea Slugs of Western Australia. Perth : Western Australian Museum 184 pp. [50-51, photo: species 49]
  Coleman, N. 2001. 1001 Nudibranchs - Catalogue of Indo-Pacific Sea Slugs. Springwood, Queensland : Neville Coleman’s Underwater Geographic Pty Ltd 144 pp. [135, photo]
  Burn, R. 2006. A checklist and bibliography of the Opisthobranchia (Mollusca: Gastropoda) of Victoria and the Bass Strait area, south-eastern Australia. Museum Victoria Science Report 10: 1-42 [13]

Distribution

States

New South Wales, Queensland, South Australia, Tasmania, Victoria, Western Australia

Extra Distribution Information

0–100 m.

Ecological Descriptors

Marine.

History of changes