Amended Diagnosis and Description of a New Species of the Genus Troglophonte Huys & Lee, 2000 (Copepoda, Harpacticoida, Laophontidae)

Year 2023, Volume: 7 Issue: 2, 127 - 140, 31.12.2023

Alper Kabaca Serdar Sak

https://doi.org/10.31594/commagene.1356621

Abstract

A new species of the monotypic genus Troglophonte Huys & Lee, 2000 (Harpacticoida, Laophontidae) was discovered among the interstitial samples collected from the Kumada Coast in the Sea of Marmara. The new species can be distinguished from the type species T. spelaea (Chappuis, 1938) by the following characters: (i) female 6-segmented antennule, (ii) P3 exp terminal segment with 7 setae, (iii) female P5 exopodal lobe with 5 setae, (iv) female P5 baseoendopod with 3 setae on endopodal lobe, (v) surface ornamentation of swimming legs, (vi) male P5 baseoendopod distal seta ornamentation, and (vii) male P5 exopod setal ornamentation. The type material of T. spelaea does no longer exist and its diagnosis is concise. Therefore, the generic diagnosis has been updated to include the characters displayed by the new species. Additionally, a phylogenetic analysis including other genera related to the Troglophonte was conducted using parsimony. The results obtained from the phylogenetic analysis were generally consistent with the previous studies.

Keywords

Taxonomy, Sea of Marmara, biodiversity, interstitial

Ethical Statement

This study was a part of a PhD thesis of Alper KABACA that is supported by Balıkesir University Scientific Research Projects Unit under Project number BAP 2017/017 and supervised by Dr. Serdar SAK.

Supporting Institution

Balıkesir University Scientific Research Projects

Project Number

BAP 2017/017

Thanks

Thanks to Eray ERSOY (MSc) for their assistance in the fieldwork and the collection of the material.

Troglophonte Huys & Lee, 2000 (Copepoda, Harpacticoida, Laophontidae) Cinsinin Değiştirilmiş Diyagnozu ve Yeni Bir Türünün Deskripsiyonu

Abstract

Marmara Denizi'nde bulunan Kumada Sahili'nden toplanan kumiçi örneklerinde monotipik Troglophonte Huys & Lee, 2000 (Harpacticoida, Laophontidae) cinsine ait yeni bir tür bulundu. Yeni tür T. spelaea (Chappuis, 1938)’dan şu karakterler ile ayırtedilebilir; (I) dişi antenül 6 segmentli, (ii) P3 ekzopod terminal segmenti 7 setalı, (iii) dişi P5 ekzopodal lobu 5 setalı, (iv) dişi P5 bazeoendopodunda endopodal lop 3 setalı, (v) yüzme bacaklarının yüzey ornamentasyonu, (vi) erkek P5 bazeoendopod uç setalarının ornamentasyonu, (vii) erkek P5 ekzopod setalarının ornamentasyonu. T. spelaea’nın tip materyalleri artık mevcut değildir ve diyagnozu kısadır. Bu nedenle, yeni türün karakterleri ile cins diyagnozu güncellenmiştir. Ek olarak, Troglophonte cinsinin yakın ilişkili cinsler ile filogenetik analizi parsimony metodu ile gerçekleştirilmiştir. Filogenetik analizlerden elde edilen sonuçlar genel olarak daha önce yapılan çalışmalarla tutarlıdır.

Keywords

Taksonomi, Marmara Denizi, biyoçeşitlilik, kumiçi

Project Number

BAP 2017/017

References

• Chappuis, P.A. (1938). Subterrane Harpacticoiden aus Süd-Italien. Buletinul Societatii de Stiinte din Cluj, 9, 153-181.
• Delamare Deboutteville, C.D. (1954). Eaux souterraines littorales de la côte Catalane française (Mise au point faunistique). Vie et Milieu, 5(3), 408-451.
• Fuentes-Reinés, J.M., Suárez-Morales, E. & Silva-Briano, M. (2021). A new species of Esola Edwards, 1891 (Crustacea, Copepoda, Harpacticoida, Laophontidae) from the Caribbean coast of Colombia. ZooKeys, 1074, 1-15. https://doi.org/10.3897/zookeys.1074.73030
• Goloboff, P.A., & Morales, M.E. (2023). TNT version 1.6, with a graphical interface for MacOS and Linux, including new routines in parallel. Cladistics, 39(2), 144-153. https://doi.org/10.1111/cla.12524
• Goloboff, P.A., Torres, A., & Arias, J.S. (2018). Weighted parsimony outperforms other methods of phylogenetic inference under models appropriate for morphology. Cladistics, 34(4), 407-437. https://doi.org/10.1111/cla.12205
• Gómez, S., & Boyko, C.B. (2006). On a small collection of harpacticoids from Easter Island: the family Laophontidae T. Scott (Crustacea: Copepoda: Harpacticoida). Zootaxa, 1352, 1-70.
• Huys, R., Gee, J. M., Moore, C.G., & Hamond, R. (1996). Marine and Brackish Water Harpacticoid Copepods. Part 1. In: Barnes, R.S.K. & Crothers, J.H. (Eds), Synopses of the British Fauna (New Series), 51. Shrewsbury, Field Studies Council, i–viii + 352 pp.
• Huys, R., & Boxshall, G.A. (1991). Copepod evolution. London, The Ray Society, 468pp.
• Huys, R. & Lee, W. (2000). Basal resolution of laophontid phylogeny and the paraphyly of Esola Edwards. Bulletin of the Natural History Museum (Zoology), 66(1), 49-107.
• Karaytuğ, S., & Sak, S. (2006). A contribution to the marine harpacticoid (Crustacea, Copepoda) fauna of Turkey. Ege Journal of Fisheries and Aquatic Sciences, 23(3).
• Lang, K. (1944). Monographie der Harpacticiden (vorläufige Mitteilung). Almqvist & Wiksells Boktryckeri AB, Uppsala, Sweden, 39pp.
• Lang, K. (1948). Monographie der Harpacticiden. Håkan Ohlssons Boktryckeri, Lund, Sweden, 1682pp.
• Lang, K. (1965). Copepoda Harpacticoida from the Californian pacific coast. Kungliga Svenska Vetenskapsakademiens Handlingar, 4, 1-560.
• Pesce, G. L. (1985). The groundwater fauna of Italy: a synthesis. Stygologia, 1(2), 129-159.
• Rouch, R. (1986). Copepoda: Les Harpacticoïdes souterrains des eaux douces continentales. In: Botosaneanu, L. (ed.). Stygofauna Mundi, a faunistic, distributional, and ecological synthesis of the world fauna inhabiting subterranean waters (including the marine interstitial), E.J. Brill/Dr. W. Backhuys, Leiden, 321-355. https://doi.org/10.1163/9789004631977_036
• Ruffo, S. (1949). Sur Monodella stygicola Ruffo des eaux souterraines de l'Italie méridionale, deuxième espèce connue de l'ordre des Thermosbenacés (Malacostraca Peracarida). Hydrobiologia, 2(1), 56-63. https://doi.org/10.1007/BF00117695
• Wells, J.B.J., (2007). An annotated checklist and keys to the species of Copepoda Harpacticoida (Crustacea). Zootaxa, 1568, 1-872. https://doi.org/10.11646/zootaxa.1568.1.1