The present study provides a report on the rare occurrence of the deep sea caridean shrimp Pasiphaea alcocki (Wood-Mason & Alcock, 1891) from the southwest coast of India after three decades. Earlier this species was recorded from Indian waters at a depth range between 335 and 1732 m while the present specimens were obtained in the depth range of 200-300m from the commercial bottom trawlers operated off Sakthikulangara fishing harbour (8°56'60.78"N /76°32'34.27"E) off (8°56'60.78"N /76°32'34.27"E), Kerala from the southern region of Arabian Sea, India. The level of interspecies genetic divergence using COI and 16S DNA sequences of Pasiphaea sp from the United States, National Center for Biotechnology Information (NCBI) were observed. The present study reports the record of Pasiphaea alcocki with a morphological description along with DNA barcoding and supplements the existing knowledge on this deep sea shrimp from the southwest coast of India, which is mandatory to understand the role of this species in ecosystem functioning.
Alcock, A. (1901) A descriptive Catalogue of the Indian deep-sea Crustacea, Decapoda, Macrura and Anomala in the Indian Museum. Being a Revised Account of the Deep-Sea Species Collected by the Royal Indian Marine Survey Ship Investigator. Baptist Mission Press, Calcutta, 286 pp.
ALcock, A. & S G McArdle (1901) Crustacea, Part XIX. In: Illustrations of the Zoology of the Royal Indian Marine Surveying Steamer “Investigator”. Trustees of the Indian Museum, Calcutta, pls. 49–55.
Dana, J.D. (1852) Conspectus of the Crustacea of the Exploring Expedition under Capt. C. Wilkes, U.S.N. Paguridea, continued, Megalopidea and Macroura. The American Journal of Science and Arts, Series 2, 116–125.
Folmer, O., Black, M., Hoeh, W., Lutz, R. & Vrijenhoek, R. (1994) DNA primers for amplification of mitochondrial cytochrome c oxidase subunit I from diverse metazoan invertebrates. Molecular Marine Biology and Biotechnology, 3, 294–299.
George, M.J. & Rao, P.V. (1966) On some decapod crustaceans from the south-west coast of India. In: Proceedings symposium on crustacea, Part 1, 327–336.
De Grave, S. & Fransen, C.H.J.M. (2011) 85 Zoologische Mededelingen. Carideorum Catalogus: The Recent Species of the Dendrobranchiate, Stenopodidean, Procarididean and Caridean Shrimps (Crustacea: Decapoda), 2011, 195–588.
De Man, J.G. (1920) The Decapoda of the Siboga Expedition, IV: Families Pasiphaeidae, Stylodactylidae, Hoplophoridae, Nematocarcinidae, Thalassocaridae, Pandalidae, Psalidopodidae, Gnathophyllidae, Processidae, Glyphocrangonidae and Crangonidae. Siboga-Expeditie, 1920, l–318, pls. 1–25.
Hayashi, K. (2006a) Revision of the Pasiphaea alcocki species group (Crustacea, Decapoda, Pasiphaeidae). In: Richer de Forges, B. & Justine, J.-L. (Eds.), Tropical Deep-Sea Benthos. Vol. 24. Mémoires du Muséum national d’Histoire naturelle, 2006, pp. 193–241.
Komai, T., Lin, C. & Chan, T. (2012) Bathypelagic shrimp of the genus Pasiphaea (Decapoda: Caridea: Pasiphaeidae) from waters around Taiwan, with description of four new speceis. Journal of Crustacean Biology, 32, 295–325.
Palumbi, S.R. (1996) Nucleic Acids II: The Polymerase Chain Reaction. In: Hillis, D.M., Moritz, C. & Mable, B.K. (Eds.), Molecular Systematics. Sinauer Associates, Inc., Sunderland, MA, pp. 205–245.
Risso, A. (1816) Histoire Naturelle des Crustacés des Environs de Nice. Librairie Grecque, Latine-Allemande, Paris, 175 pp., 3 pls.
Rodrigues, T.G.A., Alves-júnior, F.A. & Cardoso, I.A. (2018) A new species of Pasiphaea Savigny, 1816 (Crustacea, Decapoda, Pasiphaeidae) from the southwestern Atlantic. Zootaxa, 4418 (5), 493–498.
Sanger, F., Nicklen, S. & Coulson, A.R. (1977) DNA sequencing with chain-terminating inhibitors. Proceedings of the National Academy of Sciences of the United States of America, 74, 5463–5467.
Savigny, J.C. (1816) Memoires sur les Animaux sans Vertebres. Vol. 1. G. Dufour, Paris, 117 pp., 12 pls.
Suseelan, C. (1985) Studies on the deep-sea prawns off south-west coast of India. Ph.D. Thesis, Cochin University of Science and Technology, Cochin, 237 pp.
Wood-Mason, J. (1892) Illustrations of the Zoology of H.M. Indian marine surveying steamer Investigator under the command of Commander A. Carpenter, R.N., D.S.O., and of Commander R.F. Hoskyn, R.N. Part 1. Crustaceans, Calcutta, pls. 1–5.
Wood-Mason, J. & Alcock, A. (1891) Natural History Notes from H.M. Indian Marine Survey Steamer “Investigator”, Commander R.F. Hoskyn, R.N., commanding. The Annals and Magazine of Natural History, 8–11 (8 & 9), 16–34, 119–138, 268–286, 353–362 & 265–275, 3.
Wood-Mason, J. & Alcock, A. (1893) Natural history notes from H.M. Indian marine survey steamer “Investigator,” Commander R. F. Hoskyn, R.N., commanding.—Series II., No. 1. On the results of deep-sea dredging during the season 1890–91. Annals and Magazine of Natural History, Series 6, 11 (62), 161–172.