Skip to main content
×
Home
    • Aa
    • Aa

Archeolourinia shermani, a new genus and species of Louriniidae (Copepoda: Harpacticoida) from a Caribbean mesophotic zone

  • P.H.C. Corgosinho (a1) (a2) and N.V. Schizas (a3)
Abstract

Mesophotic coral ecosystems (MCEs) are found on the insular and continental slopes of Caribbean islands and comprise mainly scleractinian corals, sponges and macroalgae. These species provide habitat for a highly diverse and specialized crustacean fauna. A new genus and species of the family Louriniidae is described from samples taken from an MCE in south-west Puerto Rico. The new taxa can be diagnosed by: body elongate, almost cylindrical and with inconspicuous podoplean boundary between prosome and urosome; double genital somite with a discontinuous chitinized cuticular ridge; telson short with rectangular anal operculum; furca short; rostrum sinusoidal, well defined at the base; antennules 7-segmented with aesthetasc on the fourth segment; antenna with a brush-like basal seta and an abexopodal seta, exopod 1-segmented with 2 setae; endopod with 7 elements (1 geniculate seta and 1 modified inner spine); maxilliped well developed, prehensile, composed of syncoxa, basis, one segmented endopod and one claw-like apical seta; leg 1 endopod 3-segmented, first segment with a modified inner seta; legs 2, 3 and 4 with 2-segmented endopod with inner seta on the first segment; leg 5 basendopod fused, well developed with 4 setae, exopod well developed, with 5 setae; leg 6 represented by a single seta; and genital slits wide apart. The new genus and species can be confidently assigned to the family Louriniidae on the basis of the following synapomorphies: rostrum well-developed with rounded tip; antennule of female 7-segmented; mandible palp reduced; maxillule endopod and exopod absent; maxillae endopodite 2 represented by 3 setae; leg 5 basoendopod of female confluent, intercoxal sclerite absent, exopod 1-segmented; eggs retained in a single ventral egg sac; telson shorter than last urosomite; and furca short and with 6 setae.

Copyright
Corresponding author
Correspondence should be addressed to: P.H.C. Corgosinho, Foundation Unesco/HidroEx, Avenida Professor Mário Palmério 1000, 38200-000, Frutal-MG, Brazil email: paulo.corgosinho@hidroex.mg.gov.br
References
Hide All
BoxshallG.A. and HalseyS.H. (2004) An introduction to copepod diversity. London: The Ray Society.
CoullB.C. and HermanS.S. (1970) Zoogeography and parallel level-bottom communities of the meiobenthic Harpacticoida (Crustacea, Copepoda) of Bermuda. Oecologia (Berlin) 5, 392399.
FerrariF.D. and IvanenkoV.N. (2008) The identity of protopodal segments and the ramus of maxilla 2 of copepods (Copepoda). Crustaceana 81, 823835.
JakobiH. (1954) Espécies novas de Harpacticoida (Copepoda–Crustacea) encontradas em algas marinhas do litoral Paraná—Santa Catarina. Boletim do Instituto de Oceanografia, São Paulo 5, 189211.
HuysR. and BoxshallG.A. (1991) Copepod evolution. London: The Ray Society.
LangK. (1936) Copepoda Harpacticoida. Further Zoological Results of the Swedish Antarctic Expedition 1901–1903 3, 168.
LangK. (1948) Monographie der Harpacticiden. Stockholm: Håkan Ohlsson's Boktryckeri, Lund Nordiska Bokhandeln.
LockerS.D., ArmstrongR.A., BattistaT.A., RooneyJ.J., ShermanC. and ZawadaD.G. (2010) Geomorphology of mesophotic coral ecosystems: current perspectives on morphology, distribution, and mapping strategies. Coral Reefs 29, 329345.
MonardA. (1927) Synopsis universalis generum Harpacticoidarum. Zoologische Jahrbücher Abteiling für Systematik, Ökologie und Geographie der Tier 54, 139176.
NoodtW. (1955) Copepoda Harpacticoidea von Teneriffa (Kanarische Inseln). Zoologischer Anzeiger 154, 200222.
ShermanC., NemethM., RuizH., BejaranoI., AppeldoornR., PaganF., ScharerM. and WeilE. (2010) Geomorphology and benthic cover of mesophotic coral ecosystems of the upper insular slope of southwest Puerto Rico. Coral Reefs 29, 347360.
VervoortW. (1964) Free living Copepoda from Ifaluk Atoll in the Caroline Islands. Bulletin of the United States National Museum 236, 1431.
YooK.I. and LeeW.C. (1993) A marine harpacticoid Lourinia armata (Claus, 1866) new to Korea (Crustacea: Copepoda). Korean Journal of Systematic Zoology 9, 115121.
Recommend this journal

Email your librarian or administrator to recommend adding this journal to your organisation's collection.

Journal of the Marine Biological Association of the United Kingdom
  • ISSN: 0025-3154
  • EISSN: 1469-7769
  • URL: /core/journals/journal-of-the-marine-biological-association-of-the-united-kingdom
Please enter your name
Please enter a valid email address
Who would you like to send this to? *
×

Keywords:

Metrics

Altmetric attention score

Full text views

Total number of HTML views: 1
Total number of PDF views: 5 *
Loading metrics...

Abstract views

Total abstract views: 105 *
Loading metrics...

* Views captured on Cambridge Core between September 2016 - 23rd October 2017. This data will be updated every 24 hours.