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Issue: Vol. 1971 No. 1: 7 Jan. 2009
Type: Article
Published: 2009-01-07
DOI: 10.11646/zootaxa.1971.1.3
Page range: 59–68
Abstract views: 83
PDF downloaded: 2

A new species of copepod (Siphonostomatoida: Caligidae) parasitic on the striped trumpeter, Latris lineata (Forster), from Tasmania

Tasmanian Aquaculture and Fisheries Institute and Aquafin Cooperative Research Centre, University of Tasmania, Marine Research Laboratories, Nubeena Crescent, Taroona, Tasmania 7053, Australia
South Australian Research and Development Institute, GPO Box 397, Adelaide, SA 5001, Australia
Tasmanian Aquaculture and Fisheries Institute and Aquafin Cooperative Research Centre, University of Tasmania, Marine Research Laboratories, Nubeena Crescent, Taroona, Tasmania 7053, Australia
Tasmanian Aquaculture and Fisheries Institute, National Centre for Marine Conservation and Resource Sustainability, AMC and Aquafin CRC, University of Tasmania, Launceston, Tasmania 7250, Australia
Crustacea Caligus parasitic copepods marine fish Australia

Abstract

A new species of caligid copepod (Siphonostomatoida), Caligus nuenonnae n. sp., is described based on material collected from the body surface of striped trumpeter [Latris lineata (Forster)] reared at the Tasmanian Aquaculture and Fisheries Institute, Marine Research Laboratories, Australia. Caligus nuenonnae n. sp. is characterised by the following combination of features: 1) female genital complex with a mid-lateral indentation and highly concave posterior margin; 2) 1-segmented abdomen in the female that is about one-third the length of the genital complex; 3) distinctly broader first abdominal somite relative to the second abdominal somite in the male; 4) antenna with a spatulate process on the proximal segment; 5) recurved postantennal process without a basal accessory process; 6) female maxilliped with a proximal ridged protrusion on the corpus; 7) sternal furca with widely separated, apically truncate tines; 8) distal exopodal segment of leg 1 with a lateral flange on each apical spine and an accessory process on apical spines two and three; 9) leg 3 protopod with two adhesion pads on the dorsolateral surface; 10) leg 4 exopod 2-segmented, with I-0; I, III armature; 11) terminal exopodal segment of leg 4 with the outer apical spine being slightly shorter than the middle apical spine; 12) male maxillulary dentiform process with numerous small points embossed on the surface; and 13) male legs 5 and 6 represented by distinct lobate projections.

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