Family CYZICIDAE Stebbing, 1910

Museums

Regional Maps

• Cyzicidae Stebbing, T.R.R. 1910. General catalogue of South African Crustacea (Part V of S.A. Crustacea, for the Marine Investigations in South Africa). Annals of the South African Museum 6(4): 281-593, pls 215–222 [486].

 

Introduction

Members of this family and Eocyzicidae are easily recognised by many distinctive feactures, including valves thick and swollen, more or les oval and with many growth rings and a well developed umbo (Richter & Timms 2005; Schwentner et al., 2020). It has times included one, two, three or four genera (see referenceS below). Schwentner et al. (2020) removed Eocyzicus Daday, 1915 to its own family, leaving only Cyzicus Audouin, 1837 and Ozestheria Schwentner & Richter in Schwentner, Just & Richter, 2015. Cyzicus does not occur in Australia. Diagnoses of the two families (Schwentner et al., 2020) are not comparable. In Australia, cyzicids are recognised by males having a triangular rostrum and posterior trunk segments with several dorsal spines, and eocyzicids by males having a broad hatchet-like rostrum (subrectangular to spatulate) and posterior trunk segments with one dorsal spine (Timms, 2018).

 

Excluded Taxa

Misidentifications

CYZICIDAE: Cyzicus spp. Audouin, 1837 [All recorded from Australia now belong to Ozestheria Schwentner & Richter in Schwentner, Just & Richter, 2015] — Schwentner, M., Just, F. & Richter, S. 2015. Evolutionary systematics of the Australian Cyzicidae (Crustacea, Branchiopoda, Spinicaudata) with a description of a new genus. Zoological Journal of the Linnean Society 173: 271-295

 

General References

Brtek, J. 1997. Checklist of the valid and invalid names of the “Large Branchiopods” (Anostraca, Notostraca, Spinicaudata and Laevicaudata), with a survey of the taxonomy of all Branchiopoda. Zborník Slovenského Národného Múzea. Prírodné Vedy 43: 3-66

Daday, E. 1914. Monographie systématique des Phyllopodes Conchostracés. Première partie. Annales des Sciences Naturelles, Zoologie 20: 39-330

Dakin, W.J. 1914. Fauna of Western Australia. II. The Phyllopoda of Western Australia. Proceedings of the Zoological Society of London. Proceedings of the Zoological Society of London 1914: 293-305

Henry, M. 1924. A monograph of the freshwater Entomostraca of New South Wales. Part IV. Phyllopoda. Proceedings of the Linnean Society of New South Wales 1924: 120-137

Maeda-Martínez, A.M., Belk, D., Obregón-Barboza, H.& Dumont, H. 1997. Large branchiopod assemblages common to Mexico and the United States. Hydrobiologia 359: 45-52

Martin, J.W 1992. Branchiopoda. pp. 25-224 in Harrison F.R. (ed.). Microscopic Anatomy of Invertebrates. Crustacea. New York : Wiley-Liss Vol. 9.

Naganawa, H. 2001. Current prospect of the large branchiopod fauna of East Asia. 3. Revised classification of the recent Spinicaudata. Aquabiology 23(3): 291-299

Naganawa, H & Orgiljanova, T.I. 2000. Current prospect of the large branchiopod fauna of East Asia. I. Order Spinicaudata. Aquabiology 22(3): 272-278

Pennak, R.W. 1989. Fresh-water Invertebrates of the United States — Protozoa to Mollusca. New York : John Wiley & Sons.

Richter, S. & Timms, B.V. 2005. A list of recent clam shrimps (Crustacea: Laevicaudata, Spinicaudata, Cyclestherida) of Australia, including a description of a new species of Eocyzicus. Records of the Australian Museum 57: 341-354

Sassaman, C. 1995. Sex determination and evolution of unisexuality in the Conchostraca. Hydrobiologia 298: 45-65

Schwentner, M., Just, F. & Richter, S. 2015. Evolutionary systematics of the Australian Cyzicidae (Crustacea, Branchiopoda, Spinicaudata) with a description of a new genus. Zoological Journal of the Linnean Society 173: 271-295

Straškraba, M. 1965. Taxonomical studies on Czechoslovak Conchostraca. II. Families Lynceidae and Cyzicidae. Vestník Ceskoslovenské Zoologické Spolecnosti 29: 205-214

Timms, B.V. 2018. Keys to the Australian clam shrimps (Crustacea: Branchiopoda: Laevicaudata, Spinicaudata, Cyclestherida). Museum Victoria Science Report 20: 1-25 [available online at https://museumsvictoria.com.au/collections-research/journals/museum-victoria-science-reports/]

 

History of changes

Published	As part of group	Action Date	Action Type	Compiler(s)
03-Sep-2018	SPINICAUDATA Linder, 1945	28-Aug-2018	MODIFIED
13-Mar-2025		09-Aug-2012	MODIFIED
13-Mar-2025		18-Aug-2010	MODIFIED
		12-Feb-2010	(import)