Ceratothoa usacarangis Avdeev 1979

• Main Authors: Martin, Melissa B., Bruce, Niel L., Nowak, Barbara F.
• Format: Text
• Language: unknown
• Published: Zenodo 2015
• Subjects: Biodiversity; Taxonomy; Animalia; Arthropoda; Malacostraca; Isopoda; Cymothoidae; Ceratothoa; Ceratothoa usacarangis; Antarctic; Pacific; New Zealand; Nowak; Antarc*
• Online Access: https://dx.doi.org/10.5281/zenodo.6102748; https://zenodo.org/record/6102748

Ceratothoa usacarangis (Avdeev, 1979) Meinertia usacarangis Avdeev, 1979 a: 51, pl. 3–4. Ceratothoa usacarangis .—Beumer, Ashburn, Burbury, Jetté & Latham, 1983: 31.— Trilles, 1994: 129.— Hine, Jones & Diggles, 2000: 79.— Bruce, Lew Ton & Poore, 2002: 173. Type and type locality . The holotype (AGK 75042) and paratypes (AIC 75043 -047, AIC 75048 -050) are held at the Russian Pacific Federal Fisheries Research Institute, Vladivostok (Avdeev 1979 a). Collected from the Australia-New Zealand region, from different host (see host remarks). Remarks . Ceratothoa usacarangis has an ovoid body, widest at pereonite 5; cephalon slightly immersed in pereonite 1, anterior margin subtriangular; pereonite 1 with small antero-lateral projections; pleonites 2–5 are slightly longer than pereonite 7; pereopod 7 basis with large carinae and an expanded ischium; uropods the same length as the pleotelson; and a wider than long pleotelson. Ceratothoa usacarangis is similar to C. banksii in the ovoid body shape, subtriangular cephalon anterior margin, stout and short antennula and antenna, pleonites 2–5 slightly longer than pereonite 7, and pleotelson wider than long. Ceratothoa usacarangis is identified by the concave posterior margin of the pleotelson, expanded ischium and basis of pereopod 7 and distal margin of exopod 1 convex. The species has been reported on three host fish from the family Carangidae. Avdeev (1979 a) described Ceratothoa usacarangis as having the anterolateral margins of pereonite 1 similar to that of C. collaris , the difference being the anterolateral margins of pereonite 1 are smaller than those of C. collaris , reaching one-third the length of the cephalon. The posterolateral margin of pereonite 7 is deeply arched, and the uropods protrude from the rear edge of the pleotelson (Avdeev 1979 a). The holotype and paratypes were not found in the TINRO collection, and we were unable therefore to borrow them. Avdeev (1979 a) gave a detailed description with figures of both the male and female in Russian. To date, this species has only been recorded from the Australia – New Zealand region. Distribution . Australia (Great Australian Bight; Gulf of Carpentaria and north-west coast of Australia) (Avdeev 1979 a). Hosts . Reported from Pseudocaranx dentex (Bloch & Schneider, 1801) (previously Usacaranx georgianus ) (see Avdeev 1979 a; Hine et al. 2000), Selaroides leptolepis (Cuvier, 1833) or Atule mate (Cuvier, 1833) (previously Alepes mate ) (see Avdeev 1979 a). : Published as part of Martin, Melissa B., Bruce, Niel L. & Nowak, Barbara F., 2015, Review of the fish-parasitic genus Ceratothoa Dana, 1852 (Crustacea: Isopoda: Cymothoidae) from Australia, with description of two new species, pp. 251-294 in Zootaxa 3963 (3) on page 283, DOI: 10.11646/zootaxa.3963.3.1, http://zenodo.org/record/242174 : {"references": ["Avdeev, V. V. (1979 a) New species of the genus Cymothoa (Isopoda, Cymothoidae) from the coastal regions of north-western Australia. Parazitologiya, 13, 50 - 55.", "Beumer, J. P., Ashburner, D., Burbury, M. E., Jette, E. & Latham, D. J. (1983) A checklist of the parasites of fishes from Australia and its adjacent Antarctic territories. Technical Communication No. 48 of the Commonwealth Institute of Parasitology. Commonwealth Agricultural Bureaux, Royal Slough Farnham, 98 pp.", "Trilles, J. - P. (1994) Les Cymothoidae (Crustacea: Isopoda) du Monde. Podrome pour une faune. Studia Marina, 21 / 22, 1 - 288.", "Hine, P. M., Jones, J. B. & Diggles, B. K. (2000) A checklist of the parasites of New Zealand fishes, including previously unpublished records. NIWA Technical Report, 75, 1 - 95.", "Bruce, N. L., Lew Ton, H. M. L. & Poore, G. C. B. (2002) Cymothoidae Leach, 1814. In: Poore, G. C. B. (Ed.), Crustacea: Malacostraca: Syncarida, Peracarida: Isopoda, Tanaidacea, Mictacea, Thermosbaenacea, Spelaeofriphacea. Zoological Catalogue of Australia, CSIRO Publishing, Melbourne, pp. 168 - 183."]}