Ceradocus hawaiensis J. L. Barnard 1955
Creators: name: Krapp-Schickel, Traudl
Publisher: name: Zenodo
Year: 2009
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Malacostraca
Amphipoda
Maeridae
Ceradocus
Ceradocus hawaiensis

description: <i>Ceradocus hawaiensis</i> J.L. Barnard, 1955 (Fig. 4) <i>Ceradocus hawaiensis</i> J.L. Barnard, 1955: 5, figs 2–3. —J.L. Barnard, 1970: 115, fig. 65. —J.L. Barnard, 1971: 70, fig. 41. — Ledoyer, 1972: 207, figs 30, 31. — Ledoyer, 1978: 266. — Berents, 1983: 103, fig. 2. — Lowry &amp; Stoddart, 2003: 175. <b>Material examined.</b> 14 specimens, AM P30646, Heron Island (23°27'S 151°55'E), living on the hermit crab <i>Dardanus megistos</i>, A.J. Bruce, 11 July 1980. <b>Type locality</b>. Hanauma Bay, Oahu, Hawaii (~ 21 o 16’N 157 o 42’W). <b>Description</b>. Based on female, 4.8 mm, AM P30646. <b>Head.</b> <i>Head</i> with anteroventral notch. <i>Antenna 1</i> peduncular article 1 subequal to article 2; accessory flagellum with 6 articles. <i>Mandible</i> palp article 1 with distal acute prolongation, article 3 shorter than article 2. <i>Maxilla 1</i> inner plate triangular. <i>Maxilla 2</i> inner plate with row of mediofacial setae. <b>Pereon.</b> <i>Gnathopod 1</i> coxa with acute anterodistal corner; carpus and propodus subequal. <i>Gnathopod 2</i> asymmetrical; propodus with nearly transverse palm, that of larger gnathopod with several incisions. <i>Pereopods 3–7</i> with narrow rectangular basis. <b>Pleon.</b> <i>Pleonites 1–2</i> with many small dorsal serrations. <i>Pleonite 3</i> mediodorsally smooth, laterally with three curved spines. <i>Epimera 1–2</i> posterior margin smooth, posterodistal corner with small upturned spine. <i>Epimeron 3</i> with notches on ventral margin and one spine on posterior margin. <i>Urosomites 1–2</i> with 2–3 with dorsal spines. <i>Urosomite 3</i> smooth. <i>Telson</i> wider than long, deeply cleft, apices acutely tapering and each bearing 1–2 long robust setae (about the length of the telsonic lobes) and up to 4 short robust setae. <b>Male</b> (sexually dimorphic characters). Based on male, AM P30646. Gnathopod 2 stronger, with more incisions. <b>Habitat.</b> Commensal with the hermit crab <i>Dardanus megistos</i>. <b>Remarks</b>. <i>Ceradocus hawaiensis</i> differs from other maerids species on the GBR by a wider posteroventral corner of the pereopod 7 basis and strongly produced posteroventral spine on epimeron 3. <b>Distribution.</b> <i>Australia.</i> Queensland: Heron Island, Great Barrier Reef (Berents 1983). <i>USA</i>. Hawaii (J.L. Barnard 1955, 1970). <i>Madagascar</i> (Ledoyer 1972, 1978).
description: Published as part of <i>Krapp-Schickel, Traudl, 2009, Maeridae, the Ceradocus group *, pp. 598-642 in Zootaxa 2260 (1)</i> on pages 603-604, DOI: 10.11646/zootaxa.2260.1.32, http://zenodo.org/record/5309853
description: {"references": ["Barnard, J. L. (1955) Gammaridean Amphipoda (Crustacea) in the collections of the Bishop Museum. Bernice P. Bishop Museum Bulletin, 215, 1 - 46.", "Barnard, J. L. (1970) Sublittoral Gammaridea (Amphipoda) of the Hawaiian Islands. Smithsonian Contributions to Zoology, 34, 1 - 286.", "Barnard, J. L. (1971) Keys to the Hawaiian marine Gammaridea, 0 - 30 m. Smithsonian Contributions to Zoology, 58, 1 - 135.", "Ledoyer, M. (1972) Amphipodes Gammariens vivant dans les alveoles des constructions organogenes recifales intertidales de la region de Tulear (Madagascar). Etude systematique et ecologique. Tethys Supplement, 3, 165 - 286, 80 figs.", "Ledoyer, M. (1978) Contribution a l'etude des amphipodes gammariens profonds de Madagascar (Crustacea). Tethys. 8 (4), 365 - 382.", "Berents, P. B. (1983) The Melitidae of Lizard Island and adjacent reefs, The Great Barrier Reef, Australia (Crustacea: Amphipoda). Records of the Australian Museum, 35, 101 - 143.", "Lowry, J. K. &amp; Stoddart, H. E. (2003) Crustacea: Malacostraca: Peracarida: Amphipoda, Cumacea, Mysidacea. Beesley, P. L. and Houston, W. W. K. Zoological Catalogue of Australia. 19.2 B, i - xii, 1 - 531. Melbourne, Australia, CSIRO Publishing."]}