Physa natricina Taylor 1988, junior synonym of Physa acuta ...

Crowl, T.A. & Covich, A.P. (1990) Predator­induced life­history shifts in a freshwater snail. Science, 247,
949–951.
Covitch, A.P., Crowl, T.A., Alexander, J.E. Jr. & Vaughn, C.C. (1994) Predator­avoidance responses in
freshwater decapod­gastropod interactions mediated by chemical stimuli. Journal of the North
American Benthological Society, 13, 283–290.
DeWitt, T.J. (1998) Costs and limits of phenotypic plasticity: tests with predator­induced morphology and
life history in a freshwater snail. Journal of Evolutionary Biology, 11, 465–480.
DeWitt, T.J., Sih, A. & Hucko, J.A. (1999) Trait compensation and conspecialization in a freshwater snail:
size, shape and antipredator behavior. Animal Behavior, 58, 397–407.
DeWitt, T.J., Robinson, B.W. & Sloan Wilson, D. (2000) Functional diversity among predators of a
freshwater snail imposes an adaptive trade­off for shell morphology. Evolutionary Ecology
Research, 2, 129–148.
Dillon, R.T. Jr. (2000) The ecology of freshwater mollusks. Cambridge University Press, Cambridge,
United Kingdom, 509 pp.
Dillon, R.T. Jr., Wethington, A.R., Rhett, J.M. & Smith, T.P. (2002) Population of the European
freshwater pulmonate Physa acuta are not reproductively isolated from American Physa
heterostropha or Physa integra. Invertebrate Biology, 121, 226–234.
Dillon, R.T. Jr. & Wethington, A.R. (2004) No­choice mating experiments among six nominal taxa of the
subgenus Physella (Basommatophora: Physidae). Heldia, 6, 69–78.
Dillon, R.T. Jr., Robinson, J.D., Smith, T.P. & Wethington, A.R. (2005) No reproductive isolation
between freshwater pulmonate snails from Physa virgata and P. acuta. The Southwestern
Naturalist. 50, 415–422.
Draparnaud, J. (1805) Histoire Naturelle des Mollusques Terrestres et Fluviatiles de la France. Louis
Colas, Paris, France, 614 pp.
Frest, T.J. (1991) Letter dated 2 June 1991 to Jay Gore, containing a review of Beak and Pentec snail
surveys and studies. US Fish and Wildlife Service, Boise, ID, 16 pp.
Lydeard, C., Holznagel, W.E., Schnare, M.N. & Gutell, R.R. (2000) Phylogenetic analysis of molluscan
mitochondrial LSU rDNA sequences and secondary structures. Molecular Phylogenetics and
Evolution, 15, 83–102.
Remigio, E.A., Lepitzki, D.A.W., Lee, J.S. & Hebert, P.D.N. (2001) Molecular systematic relationships
and evidence for a recent origin of the thermal spring endemic snails Physella johnsoni and
Physella wrighti (Pulmonata: Physidae). Canadian Journal of Zoology, 79, 1941–1950.
Taylor, D.W. (1988) New species of Physa (Gastropoda: Hygrophila) from the western United States.
Malacological Review, 21, 43–78.
Taylor, D.W. (2003) Introduction to Physidae (Gastropoda: Hygrophila) biogeography, classification,
morphology. Revista de Biologia Tropical Vol. 51 Supplemental (1), 1–287.
Te, G.A. (1975) Michigan Physidae, with systematic notes on Physella and Physodon (Basommatophora:
Pulmonata). Malacological Review, 8, 7–30.
Te, G.A. (1978) The systematics of the family Physidae (Basommatophora: Pulmonata). Ph. D.
Dissertation, University of Michigan. 325 pp.
Te, G.A. (1980) New classification system for the family Physidae. Archiv für Molluskenkunde, 110, 179–
184.
Turgeon, D.D., Quinn, J.F., Bogan, A.E., Coan, E.V., Hochberg, F.G., Lyons, W.G., Mikkelsen, P.M.,
Neves, R.J., Roper, C.F.E., Rosenberg, G., Roth, B., Scheltema, A., Thompson, F.G., Vecchione,
M. & Williams, J.D. (1998) Common and scientific names of aquatic invertebrates from the
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