Mecynocera clausi I.C. Thompson 1888
Creators
Description
Mecynocera clausi I.C. Thompson, 1888
Mecynocera clausi I.C. Thompson, 1888: 150, pl. 11, figs 1–4. Giesbrecht, 1893: 160, 161, pl. 5, fig. 1, pl. 11, figs 43– 45, pl. 35, figs 21, 22.- Andronov, 1970: 980 –984, figs 1, 2.- Corral, 1972: 37, pl. 11.- Bradford-Grieve 1994: 71, fig. 38.
Dolichocera tenuis.- Bernard, 1958: 195, fig. 15a (not Calocalanus tenuis Farran, 1926). Dolichocerea tenuis.- Bernard, 1963: 160 (not Calocalanus tenuis Farran, 1926).
Material examined: 4 males, eastern tropical Atlantic collected by the Alfred Wegener Institute of Polar and Marine Research, Bremerhaven, Germany, ANT XX/1, Station 18, 20 o 26’S, 0 5o 55’E, 19 November 2002, 0– 300 m. One specimen in formalin (NIWA 45661), two specimens dissected and mounted on slides, one specimen mounted whole on slide (NIWA 45661/1-3).
Supplementary description of male: Male 0.91 mm total length (Fig. 1 A)
Antennules symmetrically developed, neither of them geniculate, with 21 free segments, ancestral segments I–IV, V–VIII, XXVII–XXVIII fused.
Antenna (Fig. 2 A) well developed, sexually dimorphic. Basis with 2 setae. Endopod 2-segmented, segment 1 without setae, segment 2 with 6 + 6 setae. Exopod 6-segmented, segment 1 short without seta, segment 2 elongate bearing enlarged distal seta, segments 3–6 each with 1 seta.
Mandible (Fig. 2 B) with degenerate gnathobase. Palp well developed. Endopod 2-segmented, segment 1 with 2 setae, segment 2 with 8 setae, 5 of which elongate, exopod with 6 setae.
Maxillule (Fig. 2 C) reduced with degenerate inner lobes and endopod with 2 small setae. Exopod with 8 setae, praecoxal epipodite with 6 large setae.
Maxilla (Fig. 2 D) reduced to a small, knob-like remnant.
Maxilliped (Fig. 2 E) sexually dimorphic. Inner setae of syncoxa, basis and endopod segments absent or very reduced; 1 terminal and 2 outer endopod setae enlarged, plumose, 2 outer setae directed towards base of limb as is typical of Paracalanidae, Calanidae and Eucalanidae.
Leg 1 (Fig. 1 B) endopod indistinctly 2-segmented, segment 1 without inner seta, segment 2 with 2 terminal and 1 inner setae. Exopod segments 1 and 2 without outer distal spines and 1 seta on inner border of both segments, segment 3 with 1 outer border spine, 1 terminal spine and 4 inner border setae. Surfaces of rami not ornamented.
Leg 2 (Fig. 1 C) endopod 3-segmented, segments 1 and 2 each with 1 inner seta, segment 3 with 2 inner, 2 terminal and 1 outer setae. Exopod 3-segmented, segment 1 with 1 outer distal spine and without inner border seta, segment 2 with 1 outer distal spine and 1 inner distal seta, segment 3 with 2 outer border spines, 1 distal spine and 5 inner setae. Surfaces of rami not ornamented.
Leg 5 (Fig. 1 D) with right leg longest, 5-segmented on both sides, terminal segment on each side with 1 stout terminal spine and 1 small distal outer border setule. Surfaces of legs not ornamented.
Notes
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Linked records
Additional details
Identifiers
Related works
- Cites
- Figure: 10.5281/zenodo.183427 (DOI)
- Figure: 10.5281/zenodo.183428 (DOI)
- Is part of
- Journal article: 10.5281/zenodo.183426 (DOI)
- Journal article: http://publication.plazi.org/id/4C469D73FF96C712D20FFFD5FFD4FF97 (URL)
- Is source of
- https://sibils.text-analytics.ch/search/collections/plazi/B07FE50BFF97C711D298FB3AFB12FD8D (URL)
Biodiversity
- Family
- Mecynoceridae
- Genus
- Mecynocera
- Kingdom
- Animalia
- Order
- Calanoida
- Phylum
- Arthropoda
- Scientific name authorship
- I.C. Thompson
- Species
- clausi
- Taxon rank
- species
- Taxonomic concept label
- Mecynocera clausi Thompson, 1888 sec. Bradford-Grieve, 2008
References
- Thompson, I. C. (1888) Copepoda of Madeira and the Canary Islands, with descriptions of new genera and species. Journal of the Linnean Society, London, Zoology, 20, 145 - 156.
- Giesbrecht, W. (1893) Systematik und Faunistik der pelagischen Copepoden des Golfes von Neapel und der angrenzenden Meeres-Abschnitte. Fauna und Flora des Golfes von Neapel und der Angrenzenden Meeres-Abschnitte, Herausgegeben von der Zoologischen Station zu Neapel, 19, 1 - 831.
- Andronov, V. N. (1970) Some problems of taxonomy of the family Paracalanidae (Copepoda). Zoologichesckii Zhurnal, Moskva, 49, 980 - 985. [in Russian with English summary]
- Corral, J. (1972) La familia Calocalanidae (Copepoda, Calanoida) en aguas del archipelago Canario. Boletin del Instituto Espanol de Oceanografia, 149, 3 - 47.
- Bradford-Grieve, J. M. (1994) The marine fauna of New Zealand: Pelagic Copepoda: Megacalaniae, Calanidae, Paracalanidae, Mecynoceridae, Eucalanidae, Spinocalanidae, Clausocalanidae. New Zealand Oceanographic Institute Memoir, 102, 1 - 160.
- Bernard, M. (1958) Revision des Calocalanus (Copepodes Calanoida) avec description d'un genre nouveau et deux especes nouvelles. Bulletin de la Societe Zoologique de France, 83, 185 - 199.
- Farran, G. P. (1926) Biscayan plankton collected during a cruise of H. M. S. Research, 1900. Part XIV. The Copepoda. Journal of the Linnean Society, London, 36, 219 - 310, figs 1 - 2, pls 5 - 10, tabs 1 - 2.
- Bernard, M. (1963) Rectification des noms donnes a deux genres de calocalanides (Copepodes Calanoida). Crustaceana, 5, 160.