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122 Kansas crayfishes. The Kansas University Science Bulletin 1(1): 2-12. 91. Hasiotis, S.T. 1993. Evaluation of the burrowing behavior of stream and pond dwelling species of Orconectes in the Front Range of Boulder, Colorado USA: their ethological and geological implications. Freshwater Crayfish 9: 399-406. 92. Hay, W.P. 1896. The crayfishes of the state of Indiana. Annual Report of the Indiana Geological Survey. 20: 475-507. 93. Hayer, C., T.L. Velazquez, M.S. Johnson and G. Graeb. 2011. Distribution of crayfish species in select North Dakota Streams. Prairie Naturalist 43(½): 61-63. 94. Hayes, W.A. II. 1975. Behavioral components of social interactions in the crayfish Procambarus gracilis (Bundy) (Decapoda: Cambaridae). Proceedings of the Oklahoma Academy of Science 55: 1-5. 95. Hayes, W.A. II. 1977. Predator response postures of crayfish. I. The genus Procambarus (Decapoda: Cambaridae). Southwest Naturalist 21(4): 443-449. 96. Hazlett, B., D. Rittschof and D. Rubenstein. 1974. Behavioral biology of the crayfish Orconectes virilis, I. Home range. American Midland Naturalist 92(2): 301-319. 97. Helgen, J.C. 1987. The distribution of crayfishes (Decapoda, Cambaridae) in Minnesota. Minnesota Department of Natural Resources Investigational Report No. 405. 98. Hepworth, D.K. and D.J. Duffield. 1987. Interactions between an exotic crayfish and stocked rainbow trout in Newcastle Reservoir, Utah. North American Journal of Fisheries Management 7: 554-561. 99. Hill, A.M. and D.M. Lodge. 1999. Replacement of resident crayfishes by an exotic crayfish: the roles of competition and predation. Ecological Applications 9(2): 678-690. 100. Hobbs, H. H., Jr. 1942. The crayfishes of Florida. University of Florida Publications, Biological Sciences Series 3(2). 101. Hobbs, H.H., Jr. 1959. Crayfishes. In W.T. Edmondson. Freshwater Biology, second edition, John Wiley and Sons, New York. Pages 883-901. 102. Hobbs, H. H., Jr. 1969. On the distribution and phylogeny of the crayfish genus Cambarus, pages. 93-178. In, P. C. Holt and R. L. Hoffman (eds.), The Distributional History of the Biota of the Southern Appalachians, Part I: Invertebrates. Virginia Polytechnic Institute, Blacksburg, Virginia. 103. Hobbs, H.H., Jr. 1972. Crayfishes (Astacidae) of North and Middle America. In Biota of Freshwater Ecosystems, Identification Manual, 9: 173 pages. United States Environmental Protection Agency. 104. Hobbs, H.H., Jr. 1974a. A checklist of the North and Middle American crayfishes. Smithsonian Contributions to Zoology, Number 166. 105. Hobbs, H.H., Jr. 1974b. Adaptations and convergence in North American