The isopod parasites (Crustacea: Isopoda: Bopyridae) of decapod Crustacea of Queensland, Australia, with descriptions of three new species.

Thirty species of Bopyridae in 25 genera and six subfamilies are listed for Queensland, of which 13 represent new state records, and eight are new to the Australian fauna. Of these, three new species are described: Scyracepon australiana sp. nov., infesting the crab Australoplax tridentata (A. Milne Edwards); Athelges ankistron sp. nov., infesting the hermit crab Diogenes pallescens Whitelegge; and Diplophryxus negrimaculatus sp. nov. infesting the palaemonid shrimp Phycomenes zostericola Bruce. Five previously described species are new records for Australia: Pagurion tuberculata Shiino, 1933; Pseudione magna Shiino, 1951; Dactylokepon richardsonae Stebbing, 1910; Megacepon choprai George, 1946; Eophrixus kuboi (Shiino, 1939). New Queensland records are: Anuropodione australiensis Bourdon, 1976; Aporobopyrina lamellata Shiino, 1934; Parathelges aniculi (Whitelegge, 1897); Pseudostegias dulcilacuum Markham, 1982; Diplophryxus jordani Richardson, 1904. Eleven species are recorded from Moreton Bay. Parabopyrella barnardi australiensis (Bourdon, 1980) is formally raised to full species status. Parathelges weberi Nierstrasz & Brender a Brandis, 1923, and P. whiteleggei Nierstrasz & Brender a Brandis, 1931, are considered junior synonyms of Parathelges aniculi (Whitelegge, 1897). An earlier record of Pseudostegias setoensis Shiino, 1933, from Queensland is re-identified as P. dulcilacuum Markham, 1982. Seventeen new bopyrid hosts are recorded. All species newly collected in Queensland waters are illustrated, and most are partially or completely described. Synonymies are complete except where otherwise noted, and are presented for all species known to occur in Queensland. q Bopyridae, new species, Queensland, Australia, Moreton Bay, taxonomy, parasitism, Decapoda Nine species of Bopyridae were collected during field work associated with the Thirteenth Inter national Marine Biological Workshop on the Marine Fauna and Flora of Moreton Bay, Queens land, during February 2005. While that material forms the core of this report, the opportunity has been taken to review the bopyrid fauna of Queensland as a whole. Accordingly, other collect ions in the Queensland Museum were examined, and these were supplemented, as necessary, by examination of types and material from other Australian and European museums. In their catalogue of the Isopoda of Australia, Poore et al. (2002) list 31 species of 26 genera in 8 subfamilies of Bopyridae, including 17 species of 12 genera in 5 subfamilies from Queensland. The total for Queensland is here raised to 30 species in 25 genera in 6 sub families, and the Australian total is consequently raised to 39 species. Table 1 gives a full listing of the species dealt with in this paper and a sum mary of their host records and localities in Aus tralian waters. Abbreviations: AM, Australian Museum, Sydney; QM, Queensland Museum; ZMA, Zoological Memoirs of the Queensland Museum — Nature Ÿ 2010 Ÿ 54(3) Ÿ www.qm.qld.gov.au 151 Citation: Markham, J.C. 2010 12 30. The isopod parasites (Crustacea: Isopoda: Bopyridae) of decapod Crustacea of Queensland, Australia, with descriptions of three new species. In, Davie,P.J.F. & Phillips, J.A. (Eds), Proceedings of the Thirteenth International Marine Biological Workshop, The Marine Fauna and Flora of Moreton Bay, Queensland. Memoirs of the Queensland Museum — Nature 54(3): 151-197. Brisbane. ISSN 0079-8835.