Abstract
Examination of material from the Wakulla River in north-western Florida revealed the presence of a new species of the amphipod genus Hyalella. It appears to be most closely related to H. azteca (Saussure) sens. strict., but can be distinguished by the nature of maxilla 1 and the telson. The setation of uropod 3 has been given systematic importance for this genus, but we show in the present paper that this character exhibits high intraspecific variation, even within the same individual. This is the first formally described species of Hyalella from Florida.
References
Bousfield, E.L. (1973) Shallow-water Gammaridean Amphipoda of New England. Cornell University Press, Ithaca, New York, 312 pp.
Bueno, A.A.P., Araujo, P.B., Cardoso, G.M., Gomes, K.M. & Bond-Buckup, G. (2013) Two new species of Hyalella (Amphipoda, Dogielinotidae) from Brazil. Crustaceana, 86 (7–8), 802–819.
https://doi.org/10.1163/15685403-00003205
Cardoso, G.M., Araujo, P.B., Bueno, A.A.P. & Ferreira, R.L. (2014) Two new subterranean species of Hyalella Smith, 1874 (Crustacea: Amphipoda: Hyalellidae) from Brazil. Zootaxa, 3814 (3), 353–368.
https://doi.org/10.11646/zootaxa.3814.3.3
Castle, W.E. (1900) Some North American fresh-water Rhynchiobdellidae, and their parasites. Bulletin of the Museum of Comparative Zoology at Harvard College, 36, 17–64.
Coleman, C.O. (2015) Taxonomy in times of the taxonomic impediment – examples from the community of experts on amphipod crustaceans. Journal of Crustacean Biology, 35 (6), 729–740.
https://doi.org/10.1163/1937240X-00002381
Colla, M.F. & César, I.I. (2015) A new species of Hyalella (Crustacea, Amphipoda, Dogielinotidae) from the Atlantic Forest of Misiones, Argentina. Zookeys, 481, 25–38.
https://doi.org/10.3897/zookeys.481.9037
Fabricius, O. (1780) Fauna Groenlandica, systematica sistens, Animalia Groenlandiae occidentalis hactenus indagata, quad nomen specificum, triviale, vernaculumque; synonyma auctorum plurium, descriptionem, locum, victim, generationem, mores, usum, capturamque singuli; prout detegendi occasion fuit, maximaque parti secumdum proprias observationes. Impensis Ioannis Gottlob Rothe, Aulae aque Univers. Reg. Bibliopolae, Hafniae et Lipsiae, 450 pp.
González, E.R. (2003) The freshwater amphipods Hyalella Smith, 1874 in Chile (Crustacea: Amphipoda). Revista Chilena de Historia Natural, 76, 623–637.
https://doi.org/10.4067/S0716-078X2003000400007
González, E.R. & Watling, L. (2002) Redescription of Hyalella azteca from its type locality, Vera Cruz, Mexico (Amphipoda: Hyalellidae). Journal of Crustacean Biology, 22, 173–183.
https://doi.org/10.1163/20021975-99990220
González, E.R., Bond-Buckup, G. & Araujo, P.B. (2006) Two new species of Hyalella from southern Brazil (Amphipoda: Hyalellidae) with a taxonomic key. Journal of Crustacean Biology, 26 (3), 355–365.
https://doi.org/10.1651/C-2599.1
Hartman, O. (1951) The littoral marine annelids of the Gulf of Mexico. Publications of the Institute of Marine Science, Port Aransas, Texas, 2 (1), 7–124.
Hrycyshyn, M.J. (2015) Molecular biogeography of the amphipod genus Hyalella in North America. Doctoral thesis, University of Waterloo, Ontario, 567 pp.
King, R.A., Bradford, T., Austin, A.D., Humphreys, W.F. & Cooper, S.J.B. (2012) Divergent molecular lineages and not-so-cryptic species: The first descriptions of stygobitic chiltoniid amphipods (Talitroidea: Chiltoniidae) from Western Australia. Journal of Crustacean Biology, 32 (3), 465–488.
https://doi.org/10.1163/193724012X626566
LeCroy, S. (2007) An illustrated identification guide to the nearshore marine and estuarine Gammaridean Amphipoda of Florida. Vol. 4. Families Anamixidae, Eusiridae, Hyalellidae, Hyalidae, Iphimediidae, Ischyroceridae, Lysianassidae, Megaluropidae and Melphidippidae. Department of Environmental Protection, Tallahassee, 112 pp. [pp. 503–614]
Lowry, J.K. & Myers, A.A. (2013) A phylogeny and classification of the Senticaudata subord. nov. (Crustacea: Amphipoda). Zootaxa, 3610 (1), 1–80.
https://doi.org/10.11646/zootaxa.3610.1.1
Major, K., Soucek, D.J., Giordano, R., Wetzel, M.J. & Soto-Adames, F. (2013) The common ecotoxicology laboratory strain of Hyalella azteca is genetically distinct from most wild strains samples in eastern North America. Environmental Toxicology and Chemistry, 32 (11), 2637–2647.
Marrón-Becerra, A., Hermoso-Salazar, M. & Solís-Weiss, V. (2014) Hyalella cenotensis, a new species of Hyalellidae (Crustacea: Amphipoda) from the Yucatán Peninsula, Mexico. Zootaxa, 3811 (2), 262–270.
https://doi.org/10.11646/zootaxa.3811.2.7
Pante, E., Schoelinck, C. & Puillandre, N. (2015) From integrative taxonomy to species description: One step beyond. Systematic Biology, 64 (1), 152–160.
https://doi.org/10.1093/sysbio/syu083
Petrescu, I. & Heard, R.W. (2004) Redescription of Almyracuma proximoculi Jones and Burbanck, 1959 (Crustacea: Cumacea: Nannastacidae) and description of a new species, A. bacescui n. sp., from the Gulf of Mexico. Travaux du Muséum National d’Histoire Naturelle “Grigore Antipa”, 47, 97–109.
Rodriques, S.G., Bueno, A.A.P. & Ferreira, R.L. (2014) A new troglobiotic species of Hyalella (Crustacea, Amphipoda, Hyalellidae) with a taxonomic key for the Brazilian species. Zootaxa, 3815 (2), 200–214.
https://doi.org/10.11646/zootaxa.3815.2.2
Santos, A.L.F., Araujo, P.B. & Bond-Buckup, G. (2008) New species and new reports of Hyalella (Crustacea, Amphipoda, Dogielinotidae) from Argentina. Zootaxa, 1760, 24–36.
Saussure, H. (1858) Memoire sur divers crustaces nouveaux des Antilles et du Mexique. Mémoires de la Société de Physique et d’Histoire Naturelle de Genève, 14, 417–496.
Say, T. (1818) An account of the Crustacea of the United States. Journal of the Academy of Natural Sciences of Philadelphia, 1, 37–401.
Soucek, D.J., Lazo-Wasem, E.A., Taylor, C.A. & Major, K.M. (2015) Description of two new species of Hyalella (Amphipoda: Hyalellidae) from eastern North America with a revised key to North American members of the genus. Journal of Crustacean Biology, 35 (6), 814–829.
https://doi.org/10.1163/1937240X-00002373
Stephensen, K. (1948) Amphipods from Curaçao, Bonaire, Aruba and Margarita. Studies of the Fauna of Curaçao, Aruba, Bonaire and the Venezuelan Islands, 3 (11), 1–20.
Stimpson, W. (1856) Description of some new marine invertebrates. Proceedings of the Academy of Natural Sciences of Philadelphia, 7 (10), 385–394.
Wellborn, G.A. (1995) Predator community composition and patterns of variation in life history and morphology among Hyalella (Amphipoda) populations in Southeast Michigan. The American Midland Naturalist, 133, 322–332.
https://doi.org/10.2307/2426397
Wellborn, G.A., Cothran, R. & Bartholf, S. (2005) Life history and allozyme diversification in regional ectomorphs of the Hyalella azteca (Crustacea: Amphipoda) species complex. Biological Journal of the Linnean Society, 84, 161–175.
https://doi.org/10.1111/j.1095-8312.2005.00422.x
Witt, J.D.S. & Hebert, P.D.N. (2000) Cryptic species diversity and evolution in the amphipod genus Hyalella within central glaciated North America: a molecular phylogenetic approach. Canadian Journal of Fisheries and Aquatic Science, 15, 3073–3082.
https://doi.org/10.1139/f99-285
Witt, J.D.S., Threloff, D.L. & Hebert, P.D.N. (2006) DNA barcoding reveals extraordinary cryptic diversity in an amphipod genus: implications for desert spring conservation. Molecular Ecology, 15, 3073–3082.
https://doi.org/10.1111/j.1365-294X.2006.02999.x