Abstract
Colomastigids are small, commensal marine amphipods distributed worldwide. Here we present descriptions of three new species of Colomastix Grube, 1861 from Todos-os-Santos Bay (Bahia state), and separately identification keys to males and females of all known Colomastix species from the Atlantic Ocean. Males of Colomastix iemanja sp. nov. can be distinguished from all others in the genus especially by the bifurcate apex of inner ramus of uropod 1, with highly asymmetric branches surrounded by a membranous-like structure. Males of Colomastix tubulosa sp. nov. can be distinguished from all others in the genus especially by the tube-like morphology of the apex of inner ramus of uropod 1, the morphology of the distalmost palmar process of gnathopod 2 and by the expanded inner ramus of uropod 2. Females of Colomastix iemanja sp. nov. and Colomastix tubulosa sp. nov. are the only species in the Atlantic with a pleated apex on dactylus of gnathopod 2, besides Colomastix trispinosa Silvany, Alves & Senna, 2019. Colomastix marielle sp. nov. can be distinguished from all other species in the genus by the elongate carpus of pereopod 5 of females and by the rudder-like morphology of the apex of inner ramus of uropod 1 of males. These three new species increase the number of Colomastix in the Atlantic from 18 to 21, and are amongst the first records of the suborder Colomastigidea Lowry & Myers, 2017 from Brazilian waters.
References
Alonso de Pina, G.M. (1993) Two Species of Leucothoidea (Amphipoda) from the Argentine Sea: Colomastix bastidai New Species (Colomastigidae) and Leucothoe spinicarpus (Abildgaard, 1789) (Leucothoidae). Crustaceana, 65 (1), 71–81.
https://doi.org/10.1163/156854093X00397
Ariyama, H. (2005) Six species of the genus Colomastix (Crustacea: Amphipoda: Colomastigidae) from western Japan, with descriptions of two new species. Bulletin of Osaka Museum of Natural History, 59 (1), 1–40.
https://doi.org/10.5962/bhl.part.27664
Barnard, J.L. (1970) Sublittoral Gammaridea (Amphipoda) of the Hawaiian Islands. Smithsonian Contribtion to Zoology, 34, 1–286.
Barnard, J.L. (1976) Amphipoda (Crustacea) from the Indo-Pacific tropics: a review. Micronesica, 12 (1), 169–176.
Barnard, J.L. (1991) The families and genera of marine gammaridean Amphipoda (except marine gammaroids). Part 1. Record of the Australian Museu Supplements, 13, 1–417.
https://doi.org/10.3853/j.0812-7387.13.1991.91
Barnard, J.L. & Karaman, G.S. (1983) Australia as a major evolutionary center for Amphipoda (Crustacea). Memoirs of the Australian Museum, 18, 45–61.
Barnard, J.L. & Karaman, G.S. (1991) The families and genera of marine gammaridean Amphipoda (except marine garnmaroids). Part 1. Records of the Australian Museum, Supplements 13 (Part 1), 1–417.
Barnard, K.H. (1931) Diagnosis of new genera and species of amphipod Crustacea collected during the ‘Discovery’ investigations, 1925–1927. Annals and Magazine of Natural History, Series 10, 7, 425–430.
https://doi.org/10.1080/00222933108673327
Barnard, K.H. (1932) Amphipoda. Discovery Reports, 1–326.
http://dx.doi.org/10.5962/bhl.part.27664
Spence Bate, C. (1862) Catalogue of the Specimens of Amphipodous Crustacea in the Collection of the British Museum. Order of the Trustces, 399 pp.
Spence Bate, C. & Westwood, J.O. (1863) A History of the British Sessile-eyed Crustacea. Vol. 1 & 2. John Van Voorst, London, 507 pp. & 536 pp.
https://doi.org/10.5962/bhl.title.1936
Bousfield, E.L. (1973) Shallow-water gammaridean amphipoda of New England. Comstock Publishing Associates, Ithaca, New York, 313 pp.
Bulycheva, A.I. (1952) Novye vidy bokoplavov (Amphipoda, Gammaridea) iz Japonskogo morja. Trudy Zoologicheskogo Instituta Akademii Nauk SSSR, 12, 195–250.
Carter, H.J. (1882) XXXVI.—Some sponges from the West Indies and Acapulco in the Liverpool Free Museum described, with general and classificatory remarks. Journal of Natural History, 9 (53), 346–368.
https://doi.org/10.1080/00222938209459052
Chevreux, É. (1899) Révision des amphipodes de la côte océanique de France. Association Francaise pour l’avancement des Sciences. Au Siège de la Société zoologique de France, Paris, pp. 474–484.
https://doi.org/10.5962/bhl.title.15976
Costa, M.F.D.B., Mansur, K.F.R. & Leite, F.P.P. (2015) Temporal variation of the gammaridean fauna (Crustacea, Amphipoda) associated with the sponge Mycale angulosa (Porifera, Demospongiae) in southeastern Brazil. Nauplius, 23 (1), 79–87.
http://dx.doi.org/10.1590/S0104-64972015002312
Cruz, I.C.S., Kikuchi, R.K.P.D. & Leão, Z.M.D.A.N. (2009) Caracterização dos Recifes de Corais da Área de Preservação. Revista de Gestão Costeira Integrada-Journal of Integrated Coastal Zone Management, 9 (3), 3–23.
https://doi.org/10.5894/rgci150
Della Valle, A. (1893) Garnmarini del Golfo di Napoli. Fauna und Flora des Golfes von Neapel un der Angrenzenden Meeres-Abschnitte, 20, 1–948.
Griffiths, C.L. (1974) The Amphipoda of Southern Africa. 4. The Gammaridea and Caprellidea of the Cape Province East of Cape Agulhas. Annals of the South African Museum, 65, 251–336.
Grant, R.E. (1826) Notice of a New Zoophyte (Cliona celata Gr.) from the Firth of Forth. Edinburgh New Philosophical Journal, 1, 78–81.
Grube, A.E. (1861) Ein Ausflug nach Triest und dem Quarnero. Beitrage zus Kenntniss der Tierwelt dieses Gebiet. Nicolaische Verlagsbuch-handlung, Berlin, 175 pp.
https://doi.org/10.3989/scimar.2010.74n4773
Grube, A.E. (1864) Bechreibungen einiger Amphipoden der istrischen Fauna. Archiv fur Naturgeschichte, 1, 195–213.
Hadju, E., Peixinho, S., Fernandez, J.C.C. & Peso-Aguiar, M.C. (2011) Esponjas marinhas da Bahia: guia de campo e laboratório. Museu Nacional do Rio de Janeiro, 279 pp.
Haswell, W.A. (1879) On some additional new genera and species of amphipodous crustaceans. Proceedings of the Linnean Society of New South Wales, 4, 319–350.
https://doi.org/10.5962/bhl.part.22854
Heard, R.W. & Perlmutter, D.G. (1977) Description of Colomastix janiceae n. sp., a commensal amphipod (Gammaridea: Colomastigidae) from the Florida Keys, USA. Proceedings of the Biological Society of Washington, 90 (1), 30–42.
Heller, C. (1866) Beiträge zur näheren Kenntniss der Amphipoden des Adriatischen Meeres. In: Denkschriften der Kaiserlichen Akademie der Wissenschaften/Mathematisch-Naturwissenschaftliche Classe. Vol. 26. KK Hof-und Staatsdruckerei, Wien, pp. 1–26.
Hirayama, A. & Kikuchi, T. (1980) A new gammaridean Amphipoda, Colomastix azumai sp. nov., living in the sponge Tetilla serica. Publications from the Amakusa Marine Biological Laboratory, Kyushu University, 5 (2), 133–141.
Horton, T., Lowry, J., De Broyer, C., Bellan-Santini, D., Coleman, C.O., Corbari, L., Daneliya, M., Dauvin, J.-C., Fišer, C., Gasca, R., Grabowski, M., Guerra-García, J.M., Hendrycks, E., Hughes, L., Jaume, D., Jazdzewski, K., Kim, Y.-H., King, R., Krapp-Schickel, T., LeCroy, S., Lörz, A.-N., Mamos, T., Senna, A.R., Serejo, C., Sket, B., Souza-Filho, J.F., Tandberg, A.H., Thomas, J., Thurston, M., Vader, W., Väinölä, R., Vonk, R., White, K. & Zeidler, W. (2018) World Amphipoda Database. Colomastix Grube, 1861. World Register of Marine Species. Available from: http://marinespecies.org/aphia.php?p=taxdetails&id=101484 (accessed 13 April 2018)
Hurley, D.E. (1954) Studies on the New Zealand amphipodan fauna No. 6. Family colomastigidae, with descriptions of two new species of Colomastix. In: Transactions of the Royal Society of New Zealand, 82 (2), pp. 419–429.
ICZN (1999) International Code of Zoological Nomenclature. 4th Edition. International Trust for Zoological Nomenclature, London, xx + 365 pp.
Kossman, R. (1880) Malacostraca. In: Zoologische Ergebnisse Auftrage Koniglische Academie Wissenschaftliche Berlin. Reise Kiistengebiete Rothen Meeres, 11. Halfte, I. Lieferung, 111. Teil, pp. 67–140.
Latreille, P.A. (1802) Histoire Naturelle, générale et particulière des Crustacés et des Insectes. Vol. 1–4. F. Dufart, Paris, 394, 380, 467 & 106 pp.
Latreille, P.A. (1816) Amphipoda. Nouveau Dictionaire d’histoire naturelle, appliquée aux Arts, à l’Agriculture, à l’Économie rurale et domestique, à la Médecine, etc. Par une société de Naturalistes et d’Agriculteurs, 1 (2), 467–469.
LeCroy, S. (1995) Amphipod Crustacea III. Family Colomastigidae. Memories Hourglass Cruises, 9, 1–139.
LeCroy, S. (2009) Colomastigidae. In: Lowry, J.K. & Myers, A.A. (Eds.), Benthic Amphipoda (Crustacea: Peracarida) of the Great Barrier reef, Australia. Zootaxa, 2260, pp. 348–372.
Ledoyer, M. (1979) Les Gammariens de la pente externe du grand récif de Tuléar (Madagascar): Crustacea Amphipoda. Museo civico di storia naturale di Verona, 2, 1–150.
Ledoyer, M. (1982) Crustaces amphipodes gammariens famille des Acanthonotozomatidae a Gammaridae. Faune de Madagascar, 59 (1), 1–598.
Lowry, J.K. & Myers, A.A. (2017) A Phylogeny and Classification of the Amphipoda with the establishment of the new order Ingolfiellida (Crustacea: Peracarida). Zootaxa, 4265 (1), 1–89.
https://doi.org/10.11646/zootaxa.4265.1.1
Lyons, J. & Myers A.A. (1990) Amphipoda Gamrnaridea from coral rubble in the Gulf of Aquaba, Red Sea: FamiliesAcanthonotozomatidae, Ampeliscidae, Ampithoidae, Anamixidae, Aoridae and Colomastigidae. Jornal of Natural History, 24 (1), 197–1225.
https://doi.org/10.1080/00222939000770731
Myers, A.A. (1993) Dispersal and endemicity in gammaridean Amphipoda. Journal of Natural History, 27 (4), 901–908.
https://doi.org/10.1080/00222939300770551
Myers, A.A. (2012) Amphipoda (Crustacea) from Palau, Micronesia: Families Ampeliscidae, Ampithoidae, Aoridae, Colomastigidae and Cyproideidae. ZooKeys, 193, 1–25.
https://doi.org/10.3897/zookeys.193.3109
Nardo, G.D. (1833) Auszug aus einem neuen System der Spongiarien, wonach bereits die Aufstellung in der Universitäts-Sammlung zu Padua gemacht ist. In: Isis. Oder Encyclopädische Zeitung Coll. Oken, Jena, pp. 519–523.
Nardo, G.D. (1834) De Spongiis. Isis, Oken, Coll., 714–716.
Nicholls, G.E. (1938) The Amphipoda Gammaridea. In: Australasian Antarctic Expedition 1911–14. Scientific Reports. Series C. Zoology and Botany. Vol. 1 Part 4. Government Printing Office, Sydney, Sydney.
Norman, A.M. (1869) Amphipoda and Isopoda. In: Brady, G.S. & Robertson, G. (Eds.), Notes of a week’s dredging in the west of Ireland. Annals and Magazine of Natural History, Series 4, 3 (17), pp. 353–373.
https://doi.org/10.1080/00222936908695961
Pallas, P.S. (1766) Elenchus zoophytorum sistens generum adumbrationes generaliores et specierum cognitarum succintas descriptiones, cum selectis auctorum synonymis. Fransiscum Varrentrapp, Hagae, 451 pp.
https://doi.org/10.5962/bhl.title.6595
Poore, A.G.B. & Lowry, J.K. (1997) New amphipods from Port Jackson, New South Wales, Australia (Crustacea: Amphipoda: Ampithoidae). Invertebrate Taxonomy, 11, 897–941.
https://doi.org/10.1071/IT95045.
Ren, X. (2006) Crustacea: Amphipoda: Gammaridea (I). In: Fauna Scinica. Vol. 41. Invertebrata. Science Press, Beijing, pp. 1–588.
Schellenberg, A. (1926) Amphipoda 3: Die Gammariden der Deutschen Tiefsee-Expedition. Wissenschaftliche Ergebnisse der Deutschen Tiefsee-Expedition auf dem Dampfer “Valdivia” 1898–1899, 23 (5), 193–243, pl. 5.
Silvany, L.C.C., Alves, J. & Senna, A.R. (2019) First record of the suborder Colomastigidea (Amphipoda) from Brazilian waters, with description of a new species of Colomastix Grube, 1861. Zootaxa, 4563 (1), 149–162.
https://doi.org/10.11646/zootaxa.4563.1.8
Thomas, J.D. (1993) Identification manual for marine Amphipoda (Gammaridea): I. Common coral reef and rocky bottom amphipods of South Florida. Floarida Department of Environmental Protection Final Report. Contract No. SP 290. Department of Environmental Protection, Division of Water Management, Bureau of Surface Water Management, Tallahassee, Florida, 102 pp.
Watling, L. (1989) A classification of crustacean setae based on the homology concept. In: Functional morphology of feeding and grooming in Crustacea. Crustacean Issues. Vol. 6. Balkema, A.A., Rotterdam, pp. 15–26.
Winfield, I. & Ortiz, M. (2010) Colomastigids (Amphipoda: Gammaridea: Colomastigidae) from the Veracruz Coral Reef System, SW Gulf of Mexico, with a description of two new species associated with sponges. Scientia Marina, 74 (4), 773–78.
https://doi.org/10.3989/scimar.2010.74n47732.