Abstract
Three species of nannosquillid mantis shrimps, including two new species, Acanthosquilla ryukyuensis n. sp. and Acanthosquilla shoheii n. sp., are described based on specimens collected from the Ryukyu Islands, Japan. The two new species resemble A. derijardi Manning, 1970, but can be distinguished from A. derijardi by the following features: 1) rostral plate anterolateral corner forms almost a right angle; 2) the distal tip of the antennular somite dorsal process reaches or slightly falls short of proximal half of rostral plate; and 3) eighth thoracic somite (= TS8) posterior margin is black medially. Furthermore, A. ryukyuensis n. sp. and A. shoheii n. sp. are easy to identify by the bifurcated lateral tooth of the telson, and by the posterodorsal pattern of the telson, respectively. In this study, molecular analyses based on partial sequences of mitochondrial 12S and 16S ribosomal DNA, cytochrome oxidase subunit I (COI), and the partial nuclear gene of 28S ribosomal DNA recovers these three species of Acanthosquilla and A. multifasciata (Wood-Mason, 1895) (the type species of the genus) in a single clade. The resulting trees also suggest the polyphyly of Nannosquillidae but with low nodal support. Detailed examinations of the morphological and color features and DNA barcoding results allowed us to delineate intraspecific variations and interspecific differences. The number and shape of setae under the dorsal spine of raptorial claw carpus was found to be useful in distinguishing A. shoheii n. sp. from A. derijardi and A. ryukyuensis n. sp., while combinations of the coloration of the rostral plate, posterior margin of TS8 and posterodorsal surface of telson are useful to distinguish the three species.
References
Ahyong, S.T. (2001) Revision of the Australian Stomatopod Crustacea. Records of the Australian Museum, Supplement 26, 1–326.
Ahyong, S.T. (2002) Stomatopoda (Crustacea) from the Marquesas Islands: results of MUSORSTOM 9. Zoosystema, 24 (2), 347–372.
Ahyong, S.T. (2008) Stomatopod Crustacea from the Dampier Archipelago, Western Australia. Records of the Western Australian Museum, Supplement 73, 41–55.
Ahyong, S.T. (2012) Stomatopod Crustacea of the KUMEJIMA 2009 Expedition, Japan. Zootaxa, 3367, 232–251.
https://doi.org/10.11646/zootaxa.3367.1.22
Ahyong, S.T. (2016) Results of the Comprehensive Marine Biodiversity Survey International Workshops 2012 and 2013: Stomatopod Crustacea. Raffles Bulletin of Zoology, Supplement 34, 455–469.
Ahyong, S.T., Caldwell, R.L. & Erdmann, M.V. (2017) Collecting and processing stomatopods. Journal of Crustacean Biology, 37, 109–114.
https://doi.org/10.1093/jcbiol/ruw005
Ahyong, S.T., Chan, T.Y. & Liao, Y.C. (2008) A Catalog of the Mantis Shrimps (Stomatopoda) of Taiwan. National Taiwan Ocean University, Keelung, vii + 191 pp.
Blumstein, R. (1974) Stomatopod crustaceans from the Gulf of Tonkin with the description of new species. Crustaceana, 26 (2), 113–126.
Castresana, J. (2000) Selection of conserved blocks from multiple alignments for their use in phylogenetic analysis. Molecular Biology and Evolution, 17, 540–552.
https://doi.org/10.1093/oxfordjournals.molbev.a026334
Ďuriš, Z. (2007) Mantis Shrimps (Crustacea: Stomatopoda) of Nhatrang Bay. In: Sysoev, À.N. & Kantor, Y.I. (Eds.), Benthic Fauna of the Bay of Nhatrang, Southern Vietnam. KMK Scientific Press, Moscow, pp. 124–159.
Ďuriš, Z. (2018) Madeirasquilla tuerkayi, a new genus and species of mantis shrimps from Madeira Island, eastern Atlantic (Crustacea: Stomatopoda: Nannosquillidae). Zootaxa, 4399 (4), 553–562.
https://doi.org/10.11646/zootaxa.4399.4.5
Fabricius, J.C. (1793) Entomologia systematica emendata et aucta. Secundum classes, ordines, genera, species, adjectis synonimis, locis, observationibus, descriptionibus. Vol. 2. Proft, Hafniae, viii + 519 pp.
Fabricius, J.C. (1798) Supplementum entomologiae systematicae. Proft & Storch, Hafniae, ii + 572 pp.
Fujita, Y., Osawa, M., Okuno, J., Komai, T. & Naruse, T. (2009) Species diversity of crustaceans of Oura Bay, Okinawa Island (preliminary report). In: Yasumura, S. (Ed.), WWF Japan Nansei Islands Biological Diversity Field Research Report. WWF Japan, Tokyo, pp. 67–79. [in Japanese]
Geller, J., Meyer, C., Parker, M. & Hawk, H. (2013) Redesign of PCR primers for mitochondrial cytochrome c oxidase subunit I for marine invertebrates and application in all-taxa biotic surveys. Molecular Ecology Resources, 13, 851–861.
https://doi.org/10.1111/1755-0998.12138
Giesbrecht, W. (1910) Stomatopoden, Erster Theil. Fauna und Florades Golfes von Neapel Monographie, 33, i–vii, 1–239, pls. 1–11.
Hoang, D.T., Chernomor, O., von Haeseler, A., Minh, B.Q. & Vinh, L.S. (2018) UFBoot2: improving the ultrafast bootstrap approximation. Molecular Biology and Evolution, 35, 518–522.
https://doi.org/10.1093/molbev/msx281
Kalyaanamoorthy, S., Minh, B.Q., Wong, T., von Haeseler, A. & Jermiin, L.S. (2017) ModelFinder: Fast model selection for accurate phylogenetic estimates. Nature Methods, 14, 587–589.
https://doi.org/10.1038/nmeth.4285
Katoh, K. & Standley, D.M. (2013) MAFFT multiple sequence alignment software version 7: improvements in performance and usability. Molecular Biology and Evolution, 30, 772–780.
https://doi.org/10.1093/molbev/mst010
Makarov, R.R. (1978) New data on crustaceans of the families Lysiosquillidae and Gonodactylidae (Crustacea, Stomatopoda) from Tonkin Bay (Vietnam). Zoologischeskij zhurnal, 57, 176–189.
Manning, R.B. (1963) Preliminary revision of the genera Pseudosquilla and Lysiosquilla with descriptions of six new genera. Bulletin of Marine Science of the Gulf and Caribbean, 13 (2), 308–328.
Manning, R.B. (1968) Stomatopod Crustacea from Madagascar. Proceedings of the United States National Museum, 124, 1–61.
Manning, R.B. (1970) Some stomatopod crustaceans from Tuléar, Madagascar. Bulletin du Muséum national d’Histoire naturelle, Series 2, 41 (6), 1429–1441.
Manning, R.B. (1978) New and rare stomatopod Crustacea from the Indo-West Pacific region. Smithsonian Contributions to Zoology, 264, 1–36.
Manning, R.B. (1980) The superfamilies, families, and genera of recent stomatopod Crustacea, with diagnoses of six new families. Proceedings of the Biological Society of Washington, 93 (2), 362–372.
Michel, A. & Manning, R.B. (1971) A new Austrosquilla (Stomatopoda) from the Marquesas Islands. Crustaceana, 20 (3), 237–240.
Moosa, M.K. (1973) The stomatopod Crustacea collected by the Mariel King memorial expedition in Malaku waters. Marine Research in Indonesia, 13, 1–30.
Moosa, M.K. (1975) Notes on stomatopod Crustacea from Seribu Islands and adjacent waters with a description of a new species. Marine Research in Indonesia, 15, 1–20.
Moosa, M.K. (1991) The Stomatopoda of New Caledonia and Chesterfield Islands. In: Richer de Forges, B. (Ed.), Le benthos des fonds meubles des lagons de Nouvelle-Calédonie. Vol. 1. ORSTOM, Paris, pp. 149–219.
Naiyanetr, P. (1995) Acanthosquilla sirindhorn n. sp., a new mantis shrimp from Thailand (Stomatopoda, Nannosquillidae). Crustaceana, 68 (4), 409–417.
Nakajima, H. & Naruse, T. (2020) First record of Pullosquilla pardus (Moosa, 1991) (Malacostraca: Stomatopoda: Nannosquillidae) from Japan. Cancer, 29, 59–63. [in Japanese with English abstract] https://doi.org/10.18988/cancer.29.0_59
Nakajima, H., Yoshida, R. & Naruse, T. (2022) Records of four mantis shrimp species (Crustacea: Stomatopoda) from the Ryukyu and Ogasawara islands, Japan. Plankton and Benthos Research, 17 (1), 34–44. https://doi.org/10.3800/pbr.17.34
Nguyen, L.T., Schmidt, H.A., von Haeseler, A. & Minh, B.Q. (2015) IQ-TREE: a fast and effective stochastic algorithm for estimating maximum-likelihood phylogenies. Molecular Biology and Evolution, 32, 268–274.
https://doi.org/10.1093/molbev/msu300
Nobili, G. (1903) Contributo alla fauna carcinologica di Borneo. Bollettino dei Musei di Zoologia ed Anatomia comparata della R. Università di Torino, 18 (447), 1–39.
Nobili, G. (1904) Diagnoses préliminaires de vingthuit espèces nouvelles de Stomatopodes et Décapodes Macroures de la Mer Rouge. Bulletin du Muséum d’Histoire Naturelle, 10, 228–238.
Palumbi, S.R., Martin, A., Romano, S., McMillan, W.O., Stice, L. & Grabowski, G. (1991) The Simple Fool’s Guide to PCR. Version 2.0. Department of Zoology and Kewalo Marine Laboratory, University of Hawaii, Honolulu, 45 pp.
Porter, M.L., Zhang, Y.F., Desai, S., Caldwell, R.L. & Cronin, T.W. (2010) Evolution of anatomical and physiological specialization in the compound eyes of stomatopod crustaceans. The Journal of Experimental Biology, 213, 3473–3486. https://doi.org/10.1242/jeb.046508
Reimer, J.D., Yang, S.Y., White, K.N., Asami, R., Fujita, K., Hongo, C., Ito, S., Kawamura, I., Maeda, I., Mizuyama, M., Obuchi, M., Sakamaki, T., Tachihara, K., Tamura, M., Tanahara, A., Yamaguchi, A. & Jenke-Kodama, H. (2015) Effects of causeway construction on environment and biota of subtropical tidal flats in Okinawa, Japan. Marine Pollution Bulletin, 94, 153–167.
https://doi.org/10.1016/j.marpolbul.2015.02.037
Schram, F.R., Ahyong, S.T., Patek, S.N., Green, P.A., Rosario, M.V., Bok, M.J., Cronin, T.W., Mead, K.S., Caldwell, R.L., Scholtz, G., Feller, K.D. & Abelló, P. (2013) Subclass Hoplocarida Calman, 1904: Order Stomatopoda Latreille, 1817. In: von Vaupel Klein J.C., Charmantier-Daures, M. & Schram, F.R. (Eds.), Treatise on Zoology-Anatomy, Taxonomy, Biology. The Crustacea. Vol. 4. Part A. Brill, Leiden and Boston, pp. 179–355.
Sinniger, F., Reimer, J.D. & Pawlowski, J. (2010) The Parazoanthidae (Hexacorallia: Zoantharia) DNA taxonomy: description of two new genera. Marine Biodiversity, 40 (1), 57–70. https://doi.org/10.1007/s12526-009-0034-3
Shiozaki, Y., Henmi, Y., Goto, R., Itani, G. & Ariyama, H. (2020) Record of a rare mantis shrimp Bigelowina phalangium from the coasts of Shikoku facing the Seto Inland Sea, Japan. Cancer, 29, e130–e135. [in Japanese]
https://doi.org/10.18988/cancer.29.0_e130
Tweedie, M.W.F. (1949) Additions to the collections of stomatopods in the Raffles Museum. Bulletin of the Raffles Museum, 19, 39–41.
Van Der Wal, C., Ahyong, S.T., Ho, S.Y.W. & Lo, N. (2017) The evolutionary history of Stomatopoda (Crustacea: Malacostraca) inferred from molecular data. PeerJ, 5, e3844. https://doi.org/10.7717/peerj.3844
Van Der Wal, C., Ahyong, S.T., Ho, S.Y.W, Lins, L.S.F. & Lo, N. (2019) Combining morphological and molecular data resolves the phylogeny of Squilloidea (Crustacea: Malacostraca). Invertebrate Systematics, 33, 89–100.
https://doi.org/10.1071/IS18035
Wood-Mason, J. (1895) Figures and descriptions of nine species of Squillidae from the collection in the Indian Museum. Indian Museum, Calcutta, 11 pp., 4pls. https://doi.org/10.5962/bhl.title.13206