A Review of the North American Freshwater Snail Genus Pyrgulopsis

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SERIES PUBLICATIONS OF THE SMITHSONIAN INSTITUTION Emphasis upon publication as a means of "diffusing knowledge" was expressed by the first Secretary of the Smithsonian. In his formal plan for the Institution, Joseph Henry outlined a program that included the following statement: "It is proposed to publish a series of reports, giving an account of the new discoveries in science, and of the changes made from year to year in all branches of knowledge." This theme of basic research has been adhered to through the years by thousands of titles issued in series publications under the Smithsonian imprint, commencing with Smithsonian Contributions to Knowledge in 1848 and continuing with the following active series: Smithsonian Contributions to Anthropology Smithsonian Contributions to Astrophysics Smithsonian Contributions to Botany Smithsonian Contributions to the Earth Sciences Smithsonian Contributions to the Marine Sciences Smithsonian Contributions to Paleobiology Smithsonian Contributions to Zoology Smithsonian Folklife Studies Smithsonian Studies in Air and Space Smithsonian Studies in History and Technology In these series, the Institution publishes small papers and full-scale monographs that report the research and collections of its various museums and bureaux or of professional colleagues in the world of science and scholarship. The publications are distributed by mailing lists to libraries, universities, and similar institutions throughout the world. Papers or monographs submitted for series publication are received by the Smithsonian Institution Press, subject to its own review for format and style, only through departments of the various Smithsonian museums or bureaux, where the manuscripts are given substantive review. Press requirements for manuscript and art preparation are outlined on the inside back cover. Robert McC. Adams Secretary Smithsonian Institution
S M I T H S O N I A N C O N T R I B U T I O N S T O Z O O L O G Y • N U M B E R 5 5 4 A Review of the North American Freshwater Snail Genus Pyrgulopsis (Hydrobiidae) Robert Hershler SMITHSONIAN INSTITUTION PRESS Washington, D.C. 1994
Page 1: A Review of the North American Fres
Page 5 and 6: Contents Page Introduction 1 Materi
Page 7 and 8: A Review of the North American Fres
Page 9 and 10: NUMBER 554 position of coiled ovidu
Page 11 and 12: NUMBER 554 field work and laborator
Page 13 and 14: NUMBER 554 FIGURE 2.—Morphology o
Page 15 and 16: NUMBER 554 Sr Ag Dsr FIGURE 4.—Di
Page 17 and 18: NUMBER 554 11 studied the anatomy o
Page 19 and 20: NUMBER 554 13 contrasted the genus
Page 21 and 22: NUMBER 554 15 FIGURE 7.—Western P
Page 23 and 24: NUMBER 554 17 Pyrgulopsis amargosae
Page 25 and 26: NUMBER 554 19 (in T 3S, R 22E, 25,0
Page 27 and 28: NUMBER 554 21 Pratt (1977) recorded
Page 29 and 30: NUMBER 554 23 DISTRIBUTION.—This
Page 31 and 32: NUMBER 554 25 nucleus slightly ecce
Page 33 and 34: NUMBER 554 27 FIGURE 11.—Western
Page 39 and 40: NUMBER 554 33 ornament an elongate,
Page 41 and 42: NUMBER 554 35 dium centered slightl
Page 43 and 44: NUMBER 554 FIGURE 15.—Western Pyr
Page 45 and 46: NUMBER 554 Pyrgulopsis glandulosa H
Page 47 and 48: NUMBER 554 41 visceral coil black.
Page 49 and 50: NUMBER 554 FIGURE 17.—Western Pyr
Page 53 and 54:
NUMBER 554 copulatrix. Seminal rece
Page 55 and 56:
NUMBER 554 Pyrgulopsis merriami (Pi
Page 57 and 58:
NUMBER 554 FIGURE 20.—Western Pyr
Page 59 and 60:
NUMBER 554 or lightly pigmented on
Page 61 and 62:
NUMBER 554 weakly frilled. Attachme
Page 63 and 64:
NUMBER 554 lake have not yielded li
Page 65 and 66:
NUMBER 554 59 REMARKS.—The small
Page 67 and 68:
NUMBER 554 61 FIGURE 24.—Western
Page 69 and 70:
NUMBER 554 63 units; Dg3 small (som
Page 71 and 72:
NUMBER 554 65 Pyrgulopsis simplex H
Page 73 and 74:
NUMBER 554 67 FIGURE 26.—Western
Page 75 and 76:
NUMBER 554 69 DIAGNOSIS.—Shell ov
Page 77 and 78:
NUMBER 554 71 filament, extending s
Page 79 and 80:
NUMBER 554 FIGURE 28.—Eastern Pyr
Page 81 and 82:
NUMBER 554 75 medium length, obliqu
Page 83 and 84:
NUMBER 554 77 2e). Visceral coil li
Page 85 and 86:
NUMBER 554 FIGURE 30.—Eastern Pyr
Page 87 and 88:
NUMBER 554 ANSP 61606; paralectotyp
Page 89 and 90:
NUMBER 554 83 and southeastern Ariz
Page 91 and 92:
Appendix 2 Fossil Species Described
Page 93 and 94:
NUMBER 554 87 Pyrgulopsis bryantwal
Page 95 and 96:
NUMBER 554 89 FIGURE 32.—Central
Page 97 and 98:
NUMBER 554 FIGURE 34.—Central rad
Page 99 and 100:
Page 101 and 102:
NUMBER 554 FIGURE 38.—Central rad
Page 103 and 104:
Page 105 and 106:
Page 107 and 108:
NUMBER 554 FIGURE 44.—Penes of we
Page 109 and 110:
Page 111 and 112:
Page 113 and 114:
Page 115 and 116:
NUMBER 554 FIGURE 52.—Penes of ea
Page 117 and 118:
Abbott, R.T. 1948. A Potential Snai
Page 119 and 120:
NUMBER 554 Society of Washington, 1
Page 121:
NUMBER 554 115 gyrus, Gabbia, Hydro
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