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Morphology and Systematic Significance of the Mystax, a Hitherto Undescribed Cephalic Structure of Males in Certain Notostraca (Branchiopoda)

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Abstract We report on the morphology and occurrence of the “mystax,” an overlooked cephalic structure found in males of certain Notostraca. The mystax is a conspicuous, protuberant, dark-brownish sclerodermal stripe located on the anteroventral flange of the carapace. Histological sections show the mystax as an expansion of the exoskeleton formed by the exocuticle. Examination of exuviae revealed that the old mystax remains intact in the shed cuticle. In some Triops populations of México and Japan, large individuals bearing ovisacs exhibit a “pseudomystax,” which consists of a dark-brownish band in nearly the same position as the mystax, but it does not form a protuberant stripe. A total of 661 males and 6402 ovisac-bearing individuals from four continents were examined. The mystax was found in males of Triops australiensis from Australia, T. granarius from Japan, Triops sp. from North America, Triops sp. from Africa, and Triops sp. from Asia. The mystax is absent in all ovisac-bearing individuals of all species analyzed and in all males of Triops cancriformis (Africa, Europe, and Japan), and in all males of the genus Lepidurus. Practical and systematic implications of the mystax are discussed.

Affiliations: 1: a (HOB, AMMM, GM) Centro de Investigaciones Biológicas del Noroeste, S.C., Apdo. Postal 128, La Paz, Baja California Sur, 23060 México; ; 2: b (BVT) Research Associate, Australian Museum, 6 College Street, Sydney, NSW 2010, Australia; ; 3: c (MJG) Lake Biwa Museum, Oroshimo 1091, Kusatsu, Shiga 525-0001, Japan; ; 4: d (DCR) EcoAnalysts, Inc., 166 Buckeye Street, Woodland, California 95695, U.S.A.; ; 5: e (GRA) Facultad de Ciencias Biológicas, Universidad Autónoma de Nuevo León, San Nicolás de los Garza, Nuevo León, México; ; 6: f (HJD) Laboratory of Animal Ecology, Ghent University, K. Ledeganckstraat 35, B-9000, Ghent, Belgium

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1. Akita M. 1976 "Classification of Japanese tadpole shrimps." Zoological Magazine Vol 85 237 247
2. Alonso M. 1996 "Crustacea, Branchiopoda. pp. 407-467." In, M. A. Ramos, J. A. Tercedor, X. B. Ros, J. G. Noguera, A. G. Sierra, E. M. Mayol, F. M. Piera, J. S. Marino, and J. T. Gonzlez (eds.), Fauna Ibrica. Vol. 7. Museo Nacional de Ciencias Naturales, CSIC, Madrid
3. Baird W. 1852 "Monograph of the family Apodidae, a family of crustaceans belonging to the division Entomostraca; with a description of a new species of Apus, and two species of Ostracoda belonging to the genus Cypris." Proceedings of the Zoological Society of London Vol 238 1 8
4. Barnard K. H. 1924 "Contributions to a knowledge of the fauna of South-West Africa. 2. Crustacea Entomostraca, Phyllopoda." Annals of the South African Museum Vol 20 213 228
5. Barnard K. H. 1929 "Contributions to the Crustacean fauna of South Africa. 10. A revision of the South African Branchiopoda (Phyllopoda)." Annals of the South African Museum Vol 29 181 272
6. Bell T. A. , Lightner D. V. 1988 "A handbook of normal penaeid shrimp histology." World Aquaculture Society, Baton Rouge, Lousiana. 114 pp
7. Braband A. , Richter S. , Hiesel R. , Scholtz G. 2002 "Phylogenetic relationships within the Phyllopoda (Crustacea, Branchiopoda) based on mitochondrial and nuclear markers." Molecular Phylogenetics and Evolution Vol 25 229 244
8. Braem F. 1893 "Bemerkungen ber die Gattung Apus." Zeitschrift fr wissenschaftliche Zoologie Vol 56 164 187
9. Fryer G. 1988 "Studies on the functional morphology and biology of the Notostraca (Crustacea: Branchiopoda)." Philosophical Transactions of the Royal Society of London B Vol 321 27 124
10. Ghigi A. 1921 "Ricerche sui notostraci di Cirenaica e di altri paesi del mediterraneo." Atti della Societa Italiana di Scienze naturali Vol 60 161 188
11. Lake Biwa Museum Field Reporters 2002 "Distributional survey of large branchiopods of rice paddies in Shiga Prefecture, Japan: a Lake Biwa Museum project based on lay amateur participation." Hydrobiologia Vol 486 133 146
12. Gurney R. 1924 "Some notes on the genus Apus (Crustacea, Branchiopoda)." Annals and Magazine of Natural History series Vol 14 559 568
13. Iguchi I. 2003 "Distribution of the dadpole sic shrimp (Triops, Branchiopoda) in Saitama Prefecture." Bulletin of the Saitama Museum of Natural History Vol 20-21 49 52 In Japanese
14. Kitching I. J. 1992 "The determination of character polarity. pp. 22-43." In, P. L. Forey, C. J. Humphries, I. J. Kitching, R. W. Scotland, D. J. Siebert, and D. M. Williams (eds.), Cladistics, A Practical Course in Systematics. Oxford University Press, Oxford
15. Linder F. 1952 "Contributions to the morphology and taxonomy of the Branchiopoda Notostraca, with special reference to the North American species." Proceedings of the United States National Museum Vol 102 1 69
16. Longhurst A. R. 1955 "A review of the Notostraca." Bulletin of the British Museum (Natural History) Zoology Vol 3 1 57
17. Longhurst A. R. 1958 "Abnormal variation in the Notostraca." Systematic Zoology Vol 7 84 88
18. Mantovani B. , Cesar M. , Scanabissi F. 2004 "Molecular taxonomy and phylogeny of the living fossil lineages Triops and Lepidurus (Branchiopoda: Notostraca)." Zoologica Scripta Vol 33 367 374
19. Murugan G. , Maeda-Martnez A. M. , Obregn-Barboza H. , Hernndez-Saavedra N. Y. 2002 "Molecular characterization of the tadpole shrimp Triops (Branchiopoda: Notostraca) from the Baja California Peninsula, Mxico: new insights on species diversity and phylogeny of the genus." Hydrobiologia Vol 486 101 113
20. Nelson G. 1978 "Ontogeny, phylogeny, paleontology, and the biogenetic law." Systematic Zoology Vol 27 324 345
21. Packard A. S. 1874 "Synopsis of the fresh-water phyllopod Crustacea of North America." Annual Report of the United States Geological and Geographical Survey of the Territories for Vol 1873 613 622
22. Sars G. O. 1899 "Additional notes on South African Phyllopoda." Archiv for Mathematik og Naturvidenskab B Vol 21 1 29
23. Saunders J. F. 1980 "Eubranchiopoda of Colorado, Part 1. Introduction and Notostraca." Natural History Inventory of Colorado Vol 5 11 24
24. Uno M. 1940 "Phyllopod crustacea of Manchuoko." Bulletin of the Biogeographical Society of Japan Vol 10 87 102
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/content/journals/10.1651/s-2699.1
2007-01-01
2016-12-11

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