Abstract
Specimens of Daphnia found in Lake Burley Griffin in December 1994 (austral summer), were taken into laboratory culture where males and ephippial females were generated. All the key morphological features of the females, males and ephippia (resting eggs) fitted those described for Daphnia obtusa Kurz, 1874 emend Scourfield, 1942 not yet recorded from Australia. There were major differences between the specimens from Lake Burley Griffin and descriptions of D. jollyi, the only other species from the subgenus Daphnia in Australia which has a fringe of long setae in the mid-region of the ventral margin of the carapace. In addition, D. jollyi is endemic to the south-west of Western Australia. The discovery of D. obtusa does not provide evidence for the existence of this taxon in Australia since the breakup of Gondwana in the Cretaceous. Its discovery in an artificial lake opened in 1964, and which has been extensively sampled without detection of this species over the last 10–20 years, suggests a recent introduction from overseas.
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References
Bayly, I. A. E., 1982. Invertebrate fauna and ecology of temporary pools on granite outcrops in southern Western Australia. Aust. J. mar. Freshwat. Res. 33: 599–606.
Bayly, I. A. E., 1992. The microcrustacea and physicochemical features of temporary ponds near Northcliffe, Western Australia. J. R. Soc. Western Australia 75: 99–106.
Benzie, J. A. H., 1986a. Phenetic and cladistic analyses of the phylogenetic relationships within the genus Daphnia worldwide. Hydrobiologia 140: 105–124.
Benzie, J. A. H., 1986b. Daphnia occidentalis, new species (Cladocera: Daphniidae) from western Australia: new evidence on the evolution of the north american D. ambigua D. middendorffiana group. J. Crust. Biol. 6: 232–245.
Benzie, J. A. H., 1987. The biogeography of Australian Daphnia: Clues to an ancient (>70 m.y.) origin from the genus. Hydrobiologia 145: 51–65.
Benzie, J. A. H., 1988. The systematics of Australian Daphnia (Cladocera: Daphniidae). Species descriptions and keys. Hydrobiologia 166: 95–161.
Benzie, J. A. H. & I. A. E. Bayly, 1996. Male and ephippial female Daphnia jollyi Petkovski 1973, discovered in Western Australia and the parthenogenetic female redescribed. Hydrobiologia (in press).
Brooks, J. L., 1959. Cladocera. In W. T. Edmodson (ed.), Freshwater Biology. Wiley and Sons, New York: 587–656.
Harding, J. P., 1955. The Percy Sladen Trust Expedition to Lake Titicaca in 1937. Crustacea; Cladocera. Trans. linn. Soc. Lond. (Zoology) 1: 329–354.
Harnisch, O., 1950. Vergleichende Beobachtungen zum Nahrungserwerb von Daphnia und Ceriodaphnia. Zool. Jhrb. Abt. Syst. 78: 173–192.
Hudec, I., 1990. Vyskyt a biologia druhov rodu Daphnia, podrodu Daphnia (Caldocera, Daphniidae) na slovensku. 1. Cast: D. obtusa, D. pulicaria, D. parvula. Biologia (Bratislava) 45: 491–499.
Hrbacek, J., 1987. Systematics and biogeography of Daphnia species in the northern temperate region. Mem. Ist. ital. Idrobiol. 45: 37–76.
Kurz, W., 1874. Dodekas neuer Cladoceren nebst einer kurzen Ubersicht der Cladocerenfauna Bohmens. Osterreichische Akademie der wissenschaften Mathematisch-naturwissenschaftliche Klasse. Sitzungsberichte. 70: 1–88.
Negrea, S., 1983. Crustacea, Cladocera. Fauna Republicii Socialiste Romania. Vol IV, Fascicula 12. Academiei Republicii Socialiste Romania, Bucuresti, 380 pp.
Petkovski, T. K., 1973. Zur Cladoceren-fauna Australiens. I. Daphniidae und Chydoridae. Acta Mus. maced. Sci. nat. 13: 133–157.
Scourfield, 1942. The ‘pulex’ forms of Daphnia and their separation into two distinct series, represented by D. pulex (De Geer) and D. obtusa Kurz. Ann mag. nat. Hist. 9: 202–219.
Smirnov, N. N. & B. V. Timms, 1983. A revision of the Australian Cladocera (Crustacea). Rec. Aust. Mus. Suppl. 1: 1–132.
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Benzie, J.A.H., Hodges, A.M.A. Daphnia obtusa Kurz, 1874 emend Scourfield, 1942 from Australia. Hydrobiologia 333, 195–199 (1996). https://doi.org/10.1007/BF00013433
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DOI: https://doi.org/10.1007/BF00013433