A re-evaluation of diversity of the Aporocotylidae Odhner, 1912 in Siganus fuscescens (Houttuyn) (Perciformes: Siganidae) and associated species

Brooks, Xena, Cribb, Thomas H., Yong, Russell Q.-Y. and Cutmore, Scott C. (2017) A re-evaluation of diversity of the Aporocotylidae Odhner, 1912 in Siganus fuscescens (Houttuyn) (Perciformes: Siganidae) and associated species. Systematic Parasitology, 94 7: 717-737. doi:10.1007/s11230-017-9744-2


Author Brooks, Xena
Cribb, Thomas H.
Yong, Russell Q.-Y.
Cutmore, Scott C.
Title A re-evaluation of diversity of the Aporocotylidae Odhner, 1912 in Siganus fuscescens (Houttuyn) (Perciformes: Siganidae) and associated species
Formatted title
A re-evaluation of diversity of the Aporocotylidae Odhner, 1912 in Siganus fuscescens (Houttuyn) (Perciformes: Siganidae) and associated species
Journal name Systematic Parasitology   Check publisher's open access policy
ISSN 1573-5192
0165-5752
Publication date 2017-09-01
Year available 2017
Sub-type Article (original research)
DOI 10.1007/s11230-017-9744-2
Open Access Status Not yet assessed
Volume 94
Issue 7
Start page 717
End page 737
Total pages 21
Place of publication Dordrecht, Netherlands
Publisher Springer Netherlands
Language eng
Subject 2405 Parasitology
Abstract The aporocotylid fauna of the mottled spinefoot, Siganus fuscescens (Houttuyn), from Moreton Bay, Queensland, Australia, was characterised using a combined morphological and molecular approach. Four aporocotylid species were identified, three belonging to the genus Ankistromeces Nolan & Cribb, 2006 and one to Cardicola Short, 1953. Specimens of Cardicola matched an undescribed species from the same host and locality; this species is described as Cardicola mogilae n. sp. Phylogenetic analyses of ITS2 and 28S data showed that C. mogilae n. sp. forms a strongly supported clade with other Cardicola species from siganid fishes. We record Ankistromeces olsoni Nolan & Cribb, 2006 in Moreton Bay for the first time, redescribe A. dunwichensis Nolan & Cribb, 2006 on the basis of new specimens and sequence data and re-report Ankistromeces sp. X from Moreton Bay based on molecular data. We review the status of the ten putative species of aporocotylids reported from siganids. Small variation in ITS2 rDNA sequences, in association with different geographic localities, was previously used to separate Cardicola lafii Nolan & Cribb, 2006 from C. parilus Nolan & Cribb, 2006, C. bartolii Nolan & Cribb, 2006 from C. watsonensis Nolan & Cribb, 2006, C. tantabiddii Nolan & Cribb, 2006 from Cardicola sp. 2, Ankistromeces sp. Y from A. olsoni and Ankistromeces sp. X from Ankistromeces sp. Z. These five combinations are reinterpreted as each representing a single species; Cardicola lafii is recognised as the senior synonym of C. parilus and C. bartolii as the senior synonym of C. watsonensis. This study thus suggests that six, rather than ten, species should be recognised as infecting S. fuscescens. This richness remains greater than is known for any other fish species and siganids are, so far, unique among fishes in harbouring two strongly radiated lineages of aporocotylids.
Formatted abstract
The aporocotylid fauna of the mottled spinefoot, Siganus fuscescens (Houttuyn), from Moreton Bay, Queensland, Australia, was characterised using a combined morphological and molecular approach. Four aporocotylid species were identified, three belonging to the genus Ankistromeces Nolan & Cribb, 2006 and one to Cardicola Short, 1953. Specimens of Cardicola matched an undescribed species from the same host and locality; this species is described as Cardicola mogilae n. sp. Phylogenetic analyses of ITS2 and 28S data showed that C. mogilae n. sp. forms a strongly supported clade with other Cardicola species from siganid fishes. We record Ankistromeces olsoni Nolan & Cribb, 2006 in Moreton Bay for the first time, redescribe A. dunwichensis Nolan & Cribb, 2006 on the basis of new specimens and sequence data and re-report Ankistromeces sp. X from Moreton Bay based on molecular data. We review the status of the ten putative species of aporocotylids reported from siganids. Small variation in ITS2 rDNA sequences, in association with different geographic localities, was previously used to separate Cardicola lafii Nolan & Cribb, 2006 from C. parilus Nolan & Cribb, 2006, C. bartolii Nolan & Cribb, 2006 from C. watsonensis Nolan & Cribb, 2006, C. tantabiddii Nolan & Cribb, 2006 from Cardicola sp. 2, Ankistromeces sp. Y from A. olsoni and Ankistromeces sp. X from Ankistromeces sp. Z. These five combinations are reinterpreted as each representing a single species; Cardicola lafii is recognised as the senior synonym of C. parilus and C. bartolii as the senior synonym of C. watsonensis. This study thus suggests that six, rather than ten, species should be recognised as infecting S. fuscescens. This richness remains greater than is known for any other fish species and siganids are, so far, unique among fishes in harbouring two strongly radiated lineages of aporocotylids.
Q-Index Code C1
Q-Index Status Provisional Code
Grant ID RF215-40
Institutional Status UQ

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Sub-type: Article (original research)
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