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<br />Arizona Game and Fish Department <br />Biological Evaluation: Kanab Ambersnail <br /> <br />July 1998 <br />Page 19 <br /> <br />Pilsbry, H.A. 1948. Land Mollusca of North America. The Academy of <br />Natural Sciences of Philadelphia Monographs II: 521-1113. <br /> <br />Sorensen, J.A. and D.M. Kubly. 1997. Investigations of the <br />endangered Kanab ~~ersnail: monitoring, genetic studies, and <br />habitat evaluation in Grand Canyon and northern Arizona. <br />Nongame and Endangered Wildlife Program Technical Report 122. <br />Arizona Game and Fish Department, Phoenix, Arizona. <br /> <br />Sorensen, J.A. and D.M. Kubly. 1998. Monitoring and habitat surveys <br />of the endangered Kanab Ambersnail in Grand Canyon and <br />Northern Arizona. Nongame and Endangered Wildlife Program <br />Technical Report 125. Arizona Game and Fish Department, <br />Phoenix, Arizona. <br /> <br />Spamer, E.E. 1993. Late Pleistocene (?) land snails (mollusca: <br />gastropoda) in "red earth" deposits of the Grand Canyon, <br />Arizona. The Mosasaur 5: 47-58. <br /> <br />Spamer, E.E. and A.E. Bogan. 1993. Mollusca of the Grand Canyon <br />and vicinity, Arizona: new and revised data on diversity and <br />distributions, with notes on Pleistocene-Holocene mollusks of <br />the Grand Canyon. Proceedings of the Academy of Natural <br />Sciences of Philadelphia 144:21-68. <br /> <br />Stevens, L.E., F.R. Protiva, D.M. Kubly, V.J. Meretsky, and J.R. <br />Petterson. 1997a. The ecology of Kanab ambersnail <br />(Succineidae: Oxyloma haydeni kanabensis Pilsbry, 1948) at <br />Vaseys Paradise, Grand Canyon, Arizona: Final Report. U.S. <br />Bureau of Reclamation Glen Canyon Environmental Studies <br />Program Report, Flagstaff. <br /> <br />Stevens, L.E., V.J. Meretsky, D.M. Kubly, J.C. Nagy, C. Nelson, <br />J.R. Petterson, F.R. Protiva, and J.A. Sorensen. 1997b. The <br />impacts of an experimental flood from Glen Canyon Dam on the <br />endangered Kanab ambersnail at Vaseys Paradise, Grand Canyon, <br />Arizona: Final Report. Grand Canyon Monitoring and Research <br />Center, Flagstaff. <br /> <br />U.S. Bureau of Reclamation (USBR). 1997. Progress Review - <br />Implementation of the Glen Canyon Dam Operations Biological <br />Opinion. December 5 memorandum to Field Supervisor, USFWS <br />Arizona Ecological Field Services Office, Phoenix, from <br />Regional Director, C.A. Calhoun, Salt Lake City. 6pp. <br />