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Issue: Vol. 5213 No. 1: 23 Nov. 2022
Type: Article
Published: 2022-11-23
DOI: 10.11646/zootaxa.5213.1.4
Page range: 64-74
Abstract views: 498
PDF downloaded: 39

New species of Pyrgulopsis Call & Pilsbry, 1886 (Mollusca: Caenogastropoda: Hydrobiidae) from two Chihuahuan Desert springs

Department of Biology, University of Texas Rio Grande Valley, Edinburg, TX, 78542, USA.
Edwards Aquifer Research and Data Center, Texas State University, San Marcos, TX, 78666, USA.
Department of Biology, University of Texas Rio Grande Valley, Edinburg, TX, 78542, USA.
Edwards Aquifer Research and Data Center/Department of Biology, Texas State University, San Marcos, TX, 78666, USA.
Mollusca spring snails DNA barcoding morphology Trans-Pecos Big Bend

Abstract

Two new populations of Pyrgulopsis were found in springs in the Chihuahuan desert region of Texas. Pyrgulopsis Call & Pilsbry, 1886 are a diverse group of snails occupying freshwater springs, usually narrow-range endemics limited to a single spring. Their small ranges confer substantial conservation concern as the drying or disturbance of a single spring can lead to their extinction. We use mitochondrial COI and nuclear LSU sequences, shell morphometrics, and anatomical features to distinguish a new species of Pyrgulopsis endemic to the Big Bend region of Texas.

 

References

  1. Callomon, P. (2019) Standard views for imaging mollusk shells. Available from: http://malacological.org/epubs.html (accessed 26 April 2019)
    Fukuda, H., Haga, T. & Tatara, Y. (2008) Niku-nuki: a useful method for anatomical and DNA studies on shell-bearing molluscs. Zoosymposia, 1, 15–38. https://doi.org/10.11646/zoosymposia.1.1.5
    Hammer, Ø., Harper, D.A.T. & Ryan, P.D. (2001) PAST: Paleontological statistics software package for education and data analysis. Palaeontologia Electronica, 4, 1–9.
    Henry, C.D. & Ramey, J.A. (2002) Down to Earth in Big Bend Ranch State Park. Geologic Map and Trail-Side Geology. Bureau of Economic Geology, The University of Texas, Austin, Texas, DE0003, map scale 1:80,000.
    Hershler, R., Liu, H.-P., & Howard, J. (2014) Springsnails: a new conservation focus in western North America. Bioscience, 64, 693–700.
    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.K.F., 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
    Kumar, S., Stecher, G., Li, M., Knyaz, C. & Tamura, K. (2018) MEGA X: Molecular Evolutionary Genetics Analysis across computing platforms. Molecular Biology and Evolution, 35, 1547–1549. https://doi.org/10.1093/molbev/msy096
    Minh, B.Q., Nguyen, M.A.T. & von Haeseler, A. (2013) Ultrafast approximation for phylogenetic bootstrap. Molecular Biology and Evolution, 30, 1188–1195. https://doi.org/10.1093/molbev/mst024
    Perez, K.E., Spor Leal, M., Glover, H., Chastain, R., Hutchins, B.T. & Schwartz, B. (2021) Two new species of Pyrgulopsis Call & Pilsbry, 1886 (Mollusca: Caenogastropoda: Hydrobiidae) from springs in the Rio Grande watershed in Texas. Zootaxa, 5071 (3), 384–402. https://doi.org/10.11646/zootaxa.5071.3.5
    Puillandre, N., Lambert, A., Brouillet, S. & Achaz, G. (2011) ABGD, Automatic Barcode Gap Discovery for primary species delimitation. Molecular Ecology, 21, 1864–1877. https://doi.org/10.1111/j.1365-294X.2011.05239.x
    Rohlf, F.J. (2017) TpsDig2. Available from: http://life.bio.sunysb.edu/morph/ (accessed 1 August 2022)
    Sheets, H.D. (2014) Integrated Morphometrics package (IMP) 8. Available from: https://www.animal-behaviour.de/imp/ (accessed 1 August 2022)
    Springer, A.E. & Stevens, L.E. (2009) Spheres of discharge of springs. Hydrogeology Journal, 17, 83–93. https://doi.org/10.1007/s10040-008-0341-y

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