Ovalipes iridescens (Miers, 1885) PORTUNIDAE Rafinesque, 1815

Muñoz, Isabel, García-Isarch, Eva & Cuesta, Jose A., 2021, Annotated and updated checklist of marine crabs (Decapoda: Brachyura) of Mozambique supported by morphological and molecular data from shelf and slope species of the “ MOZAMBIQUE ” surveys, Zootaxa 5056 (1), pp. 1-67 : 41-43

publication ID	https://doi.org/10.11646/zootaxa.5056.1.1
publication LSID	lsid:zoobank.org:pub:D20A249C-1CA4-45F8-8677-D2011A8380A4
persistent identifier	https://treatment.plazi.org/id/03D487F8-210C-FFCB-FF71-D9B3BC89FC68
treatment provided by	Plazi
scientific name	Ovalipes iridescens (Miers, 1885) PORTUNIDAE Rafinesque, 1815
status

Treatment

Ovalipes iridescens (Miers, 1885)

( Figure 14B View FIGURE 14 )

Material examined. M07, Stn. 1, 449m, ♂ 83.3× 67.8mm (IEO-CD-MZ07/1921); M08, Stn. 43, 375m, ♀ 84.3× 68.8mm; ♀ 65.5× 55.5mm; ♂ 105.1× 82.2mm (IEO-CD-MZ08/1790); M09, Stn. 17, 419m, ♂ 94.1× 75mm (IEO-CD-MZ09/1809), COI ( MZ 434816 View Materials ) .

Habitat and distribution. This species is distributed in the IP: Indonesia, Australia, Japan, and South Africa (Stephenson & Rees 1968), Mozambique ( Kensley 1981) and New Caledonia ( Poupin 2010), mainly at deep waters (Stephenson & Rees 1968), between 80 and 400m ( Emmerson 2016c).

Results and remarks. Ovalipes iridescens specimens were revised following the descriptions of Stepheson & Rees (1968). These specimens were collected between 375 and 449m depth, in the central and southern areas off Mozambique, during the three surveys (M07, M08, M09), and these records extend the maximum depth from 400 up to 449m.

Colouration observed. The specimen was bright orange colour with certain iridescence and with some whitish areas in the posterior half of the carapace. The cardiac, branchial, and gastric regions of the carapace were dark orange, with two lighter oval spots on both sides of the cardiac region. The hepatic area was whitish, with a row of highly accentuated crescent-shaped white dots. Chelipeds were orange, with a large iridescent stain on the merus and white fingers. Ambulatory legs had whitish merus, orange carpus and propodus and orange-brown dactylus. The ventral area of the individual was white. After preservation, in both ethanol and formalin, the specimen turned bone-coloured, keeping the iridescence on certain areas of the carapace and merus.

DNA barcodes. There is a COI sequence for O. iridescens in BOLD ( MDECA 151-10) from a specimen collected in Indonesia ( MNHN IU-200812533) (date of collection: 1991-19-21) identified by Moosa, that only fits 93.57% (39 mutations) with the COI sequence of the specimen IEO-CD-MZ09/1809. However, there is one sequence in BOLD of Ovalipes sp. ( MDECA 064-10), corresponding to one specimen identified by Chan, that was collected in Mozambique during the MB-exp in 2009 (date collection: 2009-04-09) and deposited at the MNHN ( MNHN IU200810370). This sequence fits 97.85% (13 mutations) with ours, being in the limit between inter or intraspecific variability.

Family PORTUNIDAE Rafinesque, 1815

Portunidae is a large family comprising seven subfamilies and 36 genera according to the recent update by Spirodonov (2020). It has been relatively well studied in recent years, based both on morphological analysis and molecular phylogenies ( De Grave et al. 2009; Evans 2018, Karasawa et al. 2008; Mantelatto et al. 2018; Schubart & Reuschel 2009; Schweitzer et al. 2010; Spiridonov et al. 2014) and consequently subject of many recent changes.According to Emmerson (2016c), only two subfamilies occur in Mozambique, Portuninae Rafinesque and Thalamitinae Paulson , because he considered Scylla not in the new subfamily Necronectinae Glaessner but in Portuninae.

Subfamily NECRONECTINAE Glaessner, 1928

Family PORTUNIDAE Rafinesque, 1815

References

De Grave, S., Pentcheff, N. D., Ahyong, S. T., Chan, T. - Y., Crandall, K. A., Dworschak, P. C., Felder, D. L., Feldmann, R. M., Fransen, C. H. J. M., Goulding, L. Y. D., Lemaitre, R., Low, M. E. Y., Martin, J. W., Ng, P. K. L., Schweitzer, C. E., Tan, S. H., Tshudy, D. & Wetzer, R. (2009) A Classification of Living and Fossil Genera of Decapod Crustaceans. The Raffles Bulletin of Zoology, Supplement 21, 1 - 109.

Emmerson, W. D. (2016 c). A guide to, and checklist for, the Decapoda of Namibia, South Africa and Mozambique. Vol. 3. Cambridge Scholars Publishing, Newcastle upon Tyne, 711 pp.

Evans, N. (2018) Molecular phylogenetics of swimming crabs (Portunoidea Rafinesque, 1815) supports a revised family-level classification and suggests a single derived origin of symbiotic taxa. PeerJ, 6 (e 4260), 1 - 55. https: // doi. org / 10.7717 / peerj. 4260

Glaessner, M. F. (1928) Die Dekapoenfauna des osterreichischen Jumgetertars. Jahrbuch der Geologischen Bundesanstalt Wien, 78, 161 - 219.

Karasawa, H., Schweitzer, C. E. & Feldmann, R. M. (2008) Revision of the Portunoidea Rafinesque, 1815 (Decapoda: Brachyura) with emphasis on the fossil genera and families. Journal of Crustacean Biology, 28 (1), 82 - 127.

Kensley, B. (1981) On the zoogeography of southern African Decapod Crustacea, with a distributional checklist of the species. Smithsonian Contributions to Zoology, 338, 1 - 64.

Mantelatto, F. L., Robles, R., Wehrtmann, I. S., Schubart, C. D. & Felder, D. L. (2018) New insights into the molecular phylogeny of the swimming crabs of the genera Portunus Weber, 1795 and Achelous De Haan, 1833 (Brachyura: Portunidae) of the Americas. Journal of Crustacean Biology, 38, 190 - 197. https: // doi. org / 10.1093 / jcbiol / rux 119

Poupin, J. (2010) Biodiversite de l'Indo-Pacifique tropical francais 2514 especes de crustaces decapodes et stomatopodes. Rapport scientifique de l'Institut de Recherche de l'Ecole Navale. 76 pp.

Rafinesque, C. S. (1815) Analyse de la nature ou Tableau de l'univers et des corps organises. Self-published, Palermo, 224 pp.

Schubart, C. D. & Reuschel, S. (2009) A proposal for a new classification of Portunoidea and Cancroidea (Brachyura: Hererotremata) based on two independent molecular phylogenies. In: Martin, J. W., Crandall, K. A. & Felder, D. L (Eds.), Decapod Crustacean Phylogenetics. CRC Press, Boca Raton, Florida, pp. 533 - 549. https: // doi. org / 10.1201 / 9781420092592

Spiridonov, V. A., Neretina, T. V. & Schepetov, D. (2014) Morphological characterization and molecular phylogeny of Portunoidea Rafinesque, 1815 (Crustacea Brachyura): Implications for understanding evolution of swimming capacity and revision of the family-level classification. Zoologischer Anzeiger - A Journal of Comparative Zoology, 253, 404 - 429. https: // doi. org / 10.1016 / j. jcz. 2014.03.003

Stepheson, W. & Rees, M. (1968) A revision of the genus Ovalipes Rathbun, 1898 (Crustacea, Decapoda, Portunidae). Records of the Australian Museum, 27, 213 - 261. https: // doi. org / 10.3853 / j. 0067 - 1975.27.1968.445

Figures

FIGURE 14. A, Chaceon macphersoni, ♀ IEO-CD-MZ09/1812; B, Ovalipes iridescens, ♀ IEO-CD-MZ07/1921. C, Scylla serrata, ♀ IEO-CD-MZ08/2238 (preserved); D, Charybdis africana, ♂ IEO-CD-MZ08/1813; E, Charybdis feriata, ♂ IEO-CD- MZ07/1902 (preserved); F, Charybdis smithii, ♂ IEO-CD-MZ08/1813; G, Monodaeus tuberculidens, ♂ IEO-CD-MZ07/1803. Scale bars: 1cm.