Brickle Paul (1), Kalavati Chaganti (2), MacKenzie
Ken (3)* - Two new species of
myxozoan parasites (Myxosporea, Bivalvulida) from toothfish
Dissostichus eleginoides Smitt, 1898 (Pisces, Nototheniidae).
(1) Falkland Islands Government Fisheries Department, P.O. Box 598,
Stanley, The Falkland Islands; (2) Department of Zoology, Andhra
University, Waltair 530 003, Andhra Pradesh, India; (3) Department of
Zoology, The University of Aberdeen, Tillydrone Avenue, Aberdeen
AB24 2TZ, U.K.
*Corresponding author: Tel.: +44 1224 272874; Fax: +44 1224 272396;
Two new species of myxozoan are described from
the toothfish Dissostichus eleginoides Smitt, 1898, caught on
the Falklands-Patagonian Shelf. Ceratomyxa dissostichi sp.
nov. was found in the gall bladders of three of 62 toothfish,
while Sphaerospora dissostichi sp. nov. was found in the kidneys of
four of 205 toothfish. These are the first reports of
either myxozoan genus from this host species. The low prevalence of S.
dissostichi, together with macroscopic lesions
observed in infected kidneys, suggest that this parasite may be
a serious pathogen of toothfish.
KEY WORDS: Ceratomyxa dissostichi sp. nov., Sphaerospora
dissostichi sp. nov., Myxosporea, toothfish, Dissostichus
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