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  1. By: Lubbock, John, Sir,
    Edition: 2d ed.
    Publication info: London,Macmillan and Co.,1875.
    Holding Institution: Cornell University Library
    Subjects: Color  Fertilization of plants by insects  Flowers  Plants  Variation  
  2. By: Honeycutt, Rodney L. - Schmidly, David J.,
    Publication info: [Lubbock] :Museum, Texas Tech University,1979.
    Holding Institution: Museum of Texas Tech University
    Subjects: Genetics  Geomys bursarius  Mammals  Texas  Variation  West (U.S.)
    BHL Collections: Expanding Access to Biodiversity Literature
  3. By: Taylor, Harry Leonard. - Cole, Charles J. - Manning, Glenn J. - Cordes, James E. - Walker, James M.
    Publication info: [New York] :American Museum of Natural History,c2012.
    Holding Institution: American Museum of Natural History Library
    Subjects: Aspidoscelis  Lizards  Morphology  Parthenogenesis in animals  Reproduction  Reptiles  Southwestern States  Variation
  4. By: Meehan, Thomas,
    Holding Institution: Missouri Botanical Garden, Peter H. Raven Library
    Subjects: (1827-1901)  (Aubrey Henry)  (Charles Eastwick)  (George Washington),  (Joseph Hinson),  (Thomas Conrad),  (William St. Julian)  1786-1859  1799-1865  1800-1889  1806-1893  1809-1884  1810-1888  1811-1875  1812-1878  1813-1887  1814-1875  1815-1891  1815-1895  1816-1893  1817-1893  1820-1883  1820-1900  1822-1901  1824-1909  1826-1901  1829-1903  1832-1904  1838-1888  1839-1922  1840-1913  Bark  Beecher, Henry Ward,  Breeding  Burk, Issac,  Candolle, Alphonse de,  Correspondence  Ecology  Embryos  Engelmann, George,  Fertilization of plants  Gramineae  Gray, Asa,  Growth  Growth (Plants)  Hoopes, Josiah,  Lapham, Increase Allen,  Letterman, George W  Letters  Lindley, John,  Mazyck, W. St. J  Meehan, Thomas,  Mellichamp, J. H  Murray, Andrew,  Nuttall, Thomas,  Parker, Charles F  Pinaceae  Pinus  Plants  Plants, Flowering of  Porter, Thomas C  Prang, Louis,  Redfield, John Howard,  Rothrock, Joseph T.,  Schott, Arthur,  Shaw, Henry,  Smith, Aubrey H  Smith, Charles E  Spruce, Richard,  Trees  Tryon, George W  Variation  Wood
    BHL Collections: Engelmann Papers, Missouri Botanical Garden
  5. By: Chesser, Ronald K.
    Publication info: Lubbock, Tex. :Texas Tech Press,[1983]
    Holding Institution: Harvard University, Museum of Comparative Zoology, Ernst Mayr Library
    Subjects: Anatomy  Black-tailed prairie dog  New Mexico  Skull  Variation
    BHL Collections: Expanding Access to Biodiversity Literature
  6. By: Schmidly, David J., - Read, Jody A. (Jody Allen), - Texas Tech University. Museum,
    Publication info: Lubbock, Tex. :Texas Tech Press,[1986]
    Holding Institution: Harvard University, Museum of Comparative Zoology, Ernst Mayr Library
    Subjects: Anatomy  Bobcat  Variation
    BHL Collections: Expanding Access to Biodiversity Literature
  7. Publication info: London,Groombridge and sons[1871]
    Holding Institution: Multiple institutions
    Subjects: 1871  Color  Entomologi  Entomology  Gold blocked bindings  Great Britain  Insects  Insekter  Life cycles  Specimens  Variation  Wood engravings  Zoology  
  8. By: Blumenbach, Johann Friedrich, - Banks, Joseph,
    Edition: Ed. 3. Praemissa est epistola ad ... Josephum Banks ...
    Publication info: Gottingae :Vandenhoek et Ruprecht,1795.
    Holding Institution: West Virginia University Libraries (archive.org)
    Subjects: Anatomy  Anthropology  Genetic Variation  Human anatomy  Variation  Variation (Biology)
  9. By: Shull, George Harrison,
    Publication info: Brünn,1912
    Holding Institution: University of California Libraries (archive.org)
    Subjects: Hybridization, Vegetable  Plants  Variation  
  10. By: Hollander, Robert R. - Willig, Michael R.
    Publication info: Lubbock, Tex. :Museum, Texas Tech University,1992
    Holding Institution: Harvard University, Museum of Comparative Zoology, Ernst Mayr Library
    Subjects: Mexico  Onychomys torridus  Variation
    BHL Collections: Expanding Access to Biodiversity Literature
  11. By: Darwin, Charles,
    Publication info: New York :D. Appleton,1893.
    Holding Institution: Cornell University Library
    Subjects: Fertilization of plants  Plants  Variation  
  12. By: Darwin, Charles,
    Publication info: New York,D. Appleton,1896.
    Holding Institution: Cornell University Library
    Subjects: Fertilization of plants  Plants  Variation  
  13. By: Darwin, Charles,
    Edition: First English edition,1877.
    Publication info: London,John Murray,1892.
    Holding Institution: Wellesley College Library (archive.org)
    Subjects: Fertilization of plants  Heterostylism  Plants  Variation
  14. By: Darwin, Charles,
    Edition: 2nd ed.
    Publication info: London :J. Murray,1880.
    Holding Institution: Tisch Library (archive.org)
    Subjects: Fertilization of plants  Heterostylism  Plants  Variation
  15. By: Darwin, Charles,
    Publication info: New York : D. Appleton, [19--]
    Holding Institution: Missouri Botanical Garden, Peter H. Raven Library
    Subjects: Fertilization of plants  Heterostylism  Plants  Variation  
  16. By: Darwin, Charles,
    Publication info: New York :D. Appleton,1897.
    Holding Institution: University of Toronto - St. Michael’s College (John M. Kelly Library)
    Subjects: Fertilization of plants  Heterostylism  Plants  Variation  
  17. By: Darwin, Charles,
    Publication info: London,J. Murray[1884]
    Holding Institution: Cornell University Library
    Subjects: Fertilization of plants  Plants  Variation  
  18. By: Darwin, Charles,
    Publication info: New York,D. Appleton,1903.
    Holding Institution: Cornell University Library
    Subjects: Fertilization of plants  Plants  Variation  
  19. By: Darwin, Charles,
    Publication info: New York :D. Appleton and company,1899.
    Holding Institution: University of California Libraries (archive.org)
    Subjects: Fertilization of plants  Heterostylism  Plants  Variation  
  20. By: Darwin, Charles,
    Publication info: New York,D. Appleton and company,1897.
    Holding Institution: Boston College Libraries (archive.org)
    Subjects: Fertilization of plants  Heterostylism  Plants  Variation  
  21. By: Darwin, Charles, - John Murray (Firm), - William Clowes and Sons, - Bradbury, Agnew and Co.,
    Edition: Second edition.
    Publication info: London :John Murray, Albemarle Street.,1878.
    Holding Institution: Tisch Library (archive.org)
    Subjects: Fertilization of plants  Plants  Pollination  Variation
  22. By: Darwin, Charles,
    Publication info: New York :D. Appleton,1892.
    Holding Institution: University of Connecticut Libraries (archive.org)
    Subjects: Fertilization of plants  Plants  Variation  
  23. By: Darwin, Charles,
    Edition: 2D ed.
    Publication info: LondonJ. Murray1916
    Holding Institution: University of Toronto - Earth Sciences Library (Noranda)
    Subjects: Fertilization of plants  Plants  Variation  
  24. By: Darwin, Charles,
    Edition: 2d. ed. 5th impression
    Publication info: London :J. Murray,1900.
    Holding Institution: University of California Libraries (archive.org)
    Subjects: Fertilization of plants  Plants  Variation  
  25. By: Keeler, Charles Augustus, - Scheerman, J. G. - Keeler, Charles Augustus, - California Academy of Sciences.
    Publication info: San Francisco, California,Academy of Sciences,1893.
    Holding Institution: Cornell University Library
    Subjects: 1893  Animals  Birds  California  Color  Heredity  Variation
  26. By: Keeler, Charles Augustus,
    Publication info: San Francisco :California Academy of Sciences,1893.
    Holding Institution: Smithsonian Libraries
    Subjects: Animals  Birds  California  Color  Heredity  Variation  
  27. By: Keeler, Charles Augustus,
    Publication info: San Francisco,California academy of sciences,1893.
    Holding Institution: University of California Libraries (archive.org)
    Subjects: Animals  Birds  California  Color  Heredity  Variation  
  28. By: Velazco, Paúl M. - Gregorin, Renato - Voss, Robert S. - Simmons, Nancy B.
    Publication info: New York, NY :American Museum of Natural History,[2014], ©2014.
    Holding Institution: American Museum of Natural History Library
    Subjects: Animal diversity  Bats  Classification  Javari River Region (Brazil and Peru)  Loreto (Department)  Mammals  Peru  Thyroptera  Thyroptera wynneae  Ucayali River Valley  Variation
  29. By: Black, Karen H. - Hand, Suzanne
    Publication info: New York, NY :American Museum of Natural History,c2010.
    Holding Institution: American Museum of Natural History Library
    Subjects: Anatomy  Australia  Diprotodontia, Fossil  Diprotodontidae  Mammals, Fossil  Miocene  Nimbadon lavarackorum  Paleontology  Riversleigh Station Region (Qld.)  Skull  Variation
  30. By: Dunn, Christopher D., - Bradley, Robert D. - Mauldin, Matthew R., - Phillips, Caleb D., - Wagley, Marisa E., - Wilkinson, Jeremy E.,
    Publication info: Lubbock, TX :Museum of Texas Tech University,2017.
    Holding Institution: Museum of Texas Tech University
    Subjects: Animals  Elk  Mammals  North America  Origin  Trans-Pecos (Tex. and N.M.)  Variation
  31. By: Hall, E. Raymond (Eugene Raymond), - University of Kansas. Museum of Natural History.
    Publication info: Lawrence :University of Kansas :1984.
    Holding Institution: Harvard University, Museum of Comparative Zoology, Ernst Mayr Library
    Subjects: Brown bear  Grizzly bear  Mammals  North America  Ursus arctos  Variation
  32. By: Mendelson, Joseph R. - Missouri. Department of Conservation.
    Publication info: Lawrence, Kan. :Natural History Museum, The University of Kansas,[1998]
    Holding Institution: Harvard University, Museum of Comparative Zoology, Ernst Mayr Library
    Subjects: Bufonidae  Geographical distribution  Toads  Variation
  33. By: Squillace, Anthony E.,
    Publication info: 1964.
    Holding Institution: University of Florida, George A. Smathers Libraries
    Subjects: Botany  Botany thesis Ph. D  Dissertations, Academic  Plants  Slash pine  UF  Variation  
  34. By: Schunke, Anja C - Hutterer, Rainer
    Publication info: New York, NY :American Museum of Natural History,c2007.
    Holding Institution: American Museum of Natural History Library
    Subjects: Africa  Africa, Central  Anatomy  Classification  Idiurus  Idiurus macrotis  Idiurus zenkeri  Mammals  Skull  Squirrels  Variation
  35. By: Rand, Austin Loomer,
    Publication info: [Chicago]Field Museum of Natural History,1968.
    Holding Institution: University Library, University of Illinois Urbana Champaign
    Subjects: Africa  Birds  Serinus sulphuratus  Variation
  36. By: Vries, Hugo de,
    Publication info: BerlinGebr. Borntraeger1913
    Holding Institution: University of Toronto - Gerstein Science Information Centre
    Subjects: Oenothera  Plants  Variation  
  37. By: Prütz, Gustav. - Förster, Christian.
    Publication info: Hamburg :Druck und Verlag von J.F. Richter,[1884-1886]
    Holding Institution: Smithsonian Libraries
    Subjects: Anatomy  Pictorial works  Pigeons  Variation
  38. By: Ludlow, Joseph Williamson, - Simpson, William,
    Edition: Rev.
    Publication info: New York :Published by National Columbarian Society, H.V. Crawford, Sec. 120 Hudson St.,1879.
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
    Subjects: Diseases  Exhibitions  Judging  Pigeons  Standards  Variation  
  39. By: Woodman, Neal - Timm, Robert M. - Field Museum of Natural History.
    Publication info: [Chicago, Ill.] :Field Museum of Natural History,c1993.
    Holding Institution: University Library, University of Illinois Urbana Champaign
    Subjects: Classification  Cryptotis  Variation
  40. By: Klein, Carina. - Landman, Neil H.
    Publication info: New York, NY :American Museum of Natural History,[2019]
    Holding Institution: American Museum of Natural History Library
    Subjects: Ammonoidea  Cretaceous  Development  Great Plains  Mollusks, Fossil  Ontogeny  Paleontology  Scaphites whitfieldi  Variation  West (U.S.)
  41. By: Haynie, Michelle L. - Brant, Joel G.
    Publication info: Lubbock, TX :Museum of Texas Tech University,[2006]
    Holding Institution: Museum of Texas Tech University
    Subjects: Corridors (Ecology)  Ecuador  Mammals  Pastaza (Province)  Tungurahua  Variation
  42. By: Gmelin, Johann Georg, - Camerarius, Rudolf Jakob, - Erhardt (Publisher)
    Publication info: Tubingae :Literis Erhardtianis,[1749]
    Holding Institution: Harvard University Botany Libraries
    Subjects: Botany  Early works to 1800  Plants  Plants, Sex in  Pre-Linnean works  Variation
  43. By: Moffat, J. Alston. - Hamilton Association. Biological Section.
    Publication info: Hamilton, Ont.? :s.n.,1888?
    Holding Institution: Canadiana.org (archive.org)
    Subjects: Species  Variation  Zoology  
  44. By: Nader, Iyad A.,
    Publication info: Urbana :University of Illinois Press,c1978.
    Holding Institution: University Library, University of Illinois Urbana Champaign
    Subjects: Desert kangaroo rat  Dipodomys spectabilis  Variation  Zoology  
  45. By: Rozen, Jerome G. (Jerome George), Jr., - Ascher, John S. - Kamel, Soliman M - Mohamed, Kariman M.
    Publication info: New York, NY :American Museum of Natural History,[2016]
    Holding Institution: American Museum of Natural History Library
    Subjects: Bees  Classification  Insects  Larvae  Megachile  Variation  Variation (Biology)
  46. By: Henslow, George, - Society for Promoting Christian Knowledge (Great Britain). General Literature Committee.
    Publication info: London :Society for Promoting Christian Knowledge,1891.
    Holding Institution: University of Toronto - Thomas Fisher Rare Book Library
    Subjects: Fertilization of plants  Plants  Variation  
  47. By: University of California (1868-1952) - Bioletti, Frederic T. (Frederic Theodore), - Cruess, W. V. - Davi, Horace Denan, - Frost, Howard Brett, - McEwen, George Francis. - Swain, Albert Free,
    Publication info: Berkeley,University of California Press,1919.
    Holding Institution: Library of Congress
    Subjects: Aphids  Grapes  Matthiola  Ocean temperature  Plants  Variation
  48. By: Shockey, Bruce J. - Flynn, John J. (John Joseph),
    Publication info: New York, NY :American Museum of Natural History,c2007.
    Holding Institution: American Museum of Natural History Library
    Subjects: Anatomy  Argentina  Chubut  Eocene  Foot  Forelimb  Locomotion  Mammals, Fossil  Morphology  Notoungulata  Paleontology  Variation
  49. By: Cole, Charles J. - Taylor, Harry Leonard. - Townsend, Carol R.
    Publication info: New York, NY :American Museum of Natural History,[2016]
    Holding Institution: American Museum of Natural History Library
    Subjects: Anatomy  Aspidoscelis  Chihuahuan spotted whiptail  Hybridization  Little striped whiptail  Lizards  Morphology  Parthenogenesis in animals  Reptiles  Teiidae  Variation
  50. By: MacDougal, Daniel Trembly, - Vail, Anna Murray, - Shull, George Harrison, - Small, John Kunkel,
    Publication info: Washington, D.C.,The Carnegie Institution,1905.
    Holding Institution: Multiple institutions
    Subjects: Hybridization, Vegetable  Oenothera  Plants  Variation
    BHL Collections: Women in Natural History
  51. By: Frost, Howard Brett,
    Publication info: Berkeley,University of California press,1919.
    Holding Institution: University of California, Davis Libraries (archive.org)
    Subjects: Matthiola  Plants  Variation  
  52. By: Vries, Hugo de, - Farmer, J. B. (John Bretland), - Darbishire, A. D. (Arthur Dukinfield),
    Publication info: Chicago,Open Court Publishing Company; [etc., etc.]1909-10.
    Holding Institution: MBLWHOI Library
    Subjects: Evolution  Evolution (Biology)  Hybridization, Vegetable  Plants  Variation  
  53. By: Vries, Hugo de, - Darbishire, A. D. (Arthur Dukinfield), - Farmer, J. B. (John Bretland),
    Publication info: Chicago,Open Court Pub. Co.,1909-10.
    Holding Institution: NCSU Libraries (archive.org)
    Subjects: Evolution  Plant hybridization  Plants  Variation  
  54. By: MacDougal, Daniel Trembly, - Vail, Anna Murray, - Shull, George Harrison, - Shull, George Harrison.
    Publication info: Washington, D.C. :Carnegie Institution of Washington,1907.
    Holding Institution: Multiple institutions
    Subjects: Gattung  illustraties  Illustrations  Induced mutations  Inheritance  Mutation  Nachtkerze  Oenothera  Onagraceae  overerving  Photographs  Plant Breeding and Selection Methods  Plantenveredeling, selectiemethoden  Plants  Variation  Variation (Botany)
    BHL Collections: Women in Natural History
  55. By: MacDougal, Daniel Trembly, - Shull, George Harrison, - Vall, Anna Murray
    Publication info: Washington, D.C.Carnegie Institution of Washington1907
    Holding Institution: University of Toronto - Gerstein Science Information Centre
    Subjects: Oenothera  Plants  Variation  
  56. By: Vries, Hugo de,
    Publication info: Leipzig,Veit & comp.,1901-03.
    Holding Institution: Multiple institutions
    Subjects: Evolution  Evolution (Biology)  Hybridization, Vegetable  Plants  Variation  
  57. By: Lubbock, John, Sir,
    Edition: New ed.
    Publication info: London ;Macmillan,1890.
    Holding Institution: Multiple institutions
    Subjects: Color  Fertilization of plants  Fertilization of plants by insects  Flowers  Great Britain  Insect-plant relationships  Plants  Variation  Wild flowers  
  58. By: Lubbock, John, Sir,
    Publication info: London :Macmillan,1909.
    Holding Institution: University of California Libraries (archive.org)
    Subjects: Color  Fertilization of plants by insects  Flowers  Plants  Variation  
  59. By: Henslow, George,
    Publication info: New York :Appleton,1888.
    Holding Institution: Cornell University Library
    Subjects: Fertilization  Flowers  Morphology  Plants  Variation  
  60. By: Henslow, George,
    Publication info: London,K. Paul, Trench, Trübnerco,1888.
    Holding Institution: Multiple institutions
    Subjects: Fertilization of plants  Flowers  Morphology  Plants  Variation  
  61. By: Lydekker, Richard,
    Publication info: London,Longmans, Green, and Co.,1892
    Holding Institution: University of California Libraries (archive.org)
    Subjects: Animals  Paleontology  Variation
  62. By: Lock, Robert Heath,
    Publication info: London,Murray,1920.
    Holding Institution: University of Toronto - Gerstein Science Information Centre
    Subjects: Evolution  Heredity  Variation  
  63. By: Voss, Robert S. - Fleck,David W. - Simmons, Nancy B. - Strauss, Richard E. - Velazco, Paúl M.
    Publication info: New York, NY :American Museum of Natural History,[2016]
    Holding Institution: American Museum of Natural History Library
    Subjects: Amazon River Region  Bats  Behavior  Biotic communities  Ecology  Habitat (Ecology)  Mammal communities  Mammals  Niche (Ecology)  Resource partitioning (Ecology)  Variation
  64. By: Campbell, Robert Kenneth, - Sugano, Albert I. - Pacific Northwest Research Station (Portland, Or.)
    Publication info: [Portland, Or.] :U.S. Dept. of Agriculture, Forest Service, Pacific Northwest Research Station,[1987]
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
    Subjects: Oregon  Plants  Sugar pine  Variation  
  65. By: MacCurdy, Hansford. - Castle, William E. (William Ernest),
    Publication info: Washington, D. C.,Carnegie institution of Washington,1907.
    Holding Institution: Cornell University Library
    Subjects: Guinea pigs  Rats  Variation
  66. By: Vries, Hugo de, - MacDougal, Daniel Trembly,
    Edition: 2nd ed., corr. and rev.
    Publication info: Chicago :The Open Court ;1906, c1904.
    Holding Institution: MBLWHOI Library
    Subjects: Evolution  Hybridization, Vegetable  Plants  Variation
  67. By: Vries, Hugo de, - MacDougal, Daniel Trembly,
    Edition: 2d ed., corr. and rev.
    Publication info: Chicago,The Open Court Publishing Company; [etc., etc.]1906.
    Holding Institution: Cornell University Library
    Subjects: Evolution  Hybridization, Vegetable  Plants  Variation  
  68. By: Vries, Hugo de, - MacDougal, Daniel Trembly,
    Publication info: ChicagoOpen Court Pub. Co.1905
    Holding Institution: University of Toronto - Gerstein Science Information Centre
    Subjects: Evolution  Hybridization, Vegetable  Plants  Variation  
  69. By: Vries, Hugo de, - MacDougal, Daniel Trembly,
    Edition: 2d ed., corrected and rev.
    Publication info: Chicago,Open Court Pub. Co.;1906 [c1904]
    Holding Institution: Multiple institutions
    Subjects: Biological Evolution  Electronic books  Evolution  Genetic Variation  Hybridization  Mutation  Plant hybridization  Plants  Variation
  70. By: Henslow, George,
    Publication info: London :G. Newnes,1901.
    Holding Institution: Research Library, The Getty Research Institute (archive.org)
    Subjects: Fertilization  Fertilization of plants  Flowers  Morphology  Plants  Variation
  71. By: Kellogg, Vernon Lyman, - Smith, Ruby Green Bell,
    Publication info: Washington, D. C.,The Academy,1904.
    Holding Institution: University of California Libraries (archive.org)
    Subjects: Animals  Insects  Variation  
  72. By: Barnhart, Jesse Melangthon.
    Publication info: 1912.
    Holding Institution: University Library, University of Illinois Urbana Champaign
    Subjects: 1912  Chemistry  Grasses  Harvesting  Pasture plants  Research  Theses  UIUC  Variation  
  73. By: Bailey, L. H. (Liberty Hyde), - Duncombe, U., - J. Horace McFarland Company.
    Publication info: New York :Macmillan Company,1896.
    Holding Institution: University of Toronto - Thomas Fisher Rare Book Library
    Subjects: Evolution  Plants  Plants, Cultivated  Variation  Varieties
  74. By: Bailey, L. H. (Liberty Hyde),
    Edition: 5th ed.
    Publication info: New YorkMacmillan1906
    Holding Institution: University of Toronto - Gerstein Science Information Centre
    Subjects: Evolution  Plants  Plants, Cultivated  Variation
  75. By: Baumgardner, George D. - Schmidly, David J.,
    Publication info: Lubbock, Tex. :Museum of Texas Tech University :[1981]
    Holding Institution: Harvard University, Museum of Comparative Zoology, Ernst Mayr Library
    Subjects: Dipodomys ordii  Kangaroo rats  Mammals  Mexico  Texas  Variation
    BHL Collections: Expanding Access to Biodiversity Literature
  76. By: Zwinger, Friedrich, - Rippelius, Johannes Henricus.
    Publication info: Basileae :Typis Joh. Henrici Deckeri,1733.
    Holding Institution: Wellcome Library (archive.org)
    Subjects: Academic dissertations  Anatomy  Electronic books  Embryology  Plant anatomy  Plants  Variation  
  77. By: Gritis, Paul A. - Voris, Harold K.
    Publication info: [Chicago] :Field Museum of Natural History,1990.
    Holding Institution: University Library, University of Illinois Urbana Champaign
    Subjects: Hydrophidae  Lapemis  Variation
  78. By: IAblokov, A. V. - National Science Foundation (U.S.) - Smithsonian Institution.
    Publication info: New Delhi :Published for the Smithsonian Institution and the National Science Foundation, Washington, D. C., by Amerind Pub. Co. ;1974.
    Holding Institution: Smithsonian Libraries
    Subjects: Anatomy  Mammals  Morphology (Animals)  Variation  Variation (Biology)
  79. By: Fitch, Henry S.
    Publication info: Lawrence :University of Kansas,1985.
    Holding Institution: Harvard University, Museum of Comparative Zoology, Ernst Mayr Library
    Subjects: Reproduction  Reptiles  United States  Variation
  80. By: Blake, Emmet Reid,
    Publication info: Chicago,Chicago Natural History Museum,1961.
    Holding Institution: University Library, University of Illinois Urbana Champaign
    Subjects: Myiozetetes luteiventris  Variation  Zoology
  81. By: Blake, Emmet Reid,
    Publication info: [Chicago]Chicago Natural History Museum,1961.
    Holding Institution: University Library, University of Illinois Urbana Champaign
    Subjects: Ecology  Geotrygon frenata  Variation
  82. By: Robson, G. C. (Guy Coburn), - Richards, Owain Westmacott,
    Publication info: London,Longmans, Green and co.[1936]
    Holding Institution: MBLWHOI Library
    Subjects: Evolution  Natural selection  Variation  Zoology
  83. By: Ruthven, Alexander Grant,
    Publication info: Washington,Govt. print. off.,1908.
    Holding Institution: Smithsonian Libraries
    Subjects: Animals  Garter snakes  Variation
  1. By: Dutrillaux, Anne-Marie - Dutrillaux, Bernard
    Type: Article
    In: Comparative Cytogenetics
    Volume: 13
    Date: 2019
    Page Range: 179-192
    Publication info: Pensoft Publishers 2019
    Subjects: Coleoptera  heterochromatin  Karyotypes  Polyphaga  sex chromosomes  Variation
  2. By: Falk, Bryan G.
    Type: Article
    Date: 2015-07-07
    Publication info: 2015-07-07
    Subjects: Anoles  Caribbean Area  Paraphayngodon cubensis  Parasites  Plasmodium floridense  Spauligodon anolis  Variaiton  Variation
  3. By: Hayashi, Ryota
    Type: Article
    In: ZooKeys
    Volume: 327
    Date: 2013
    Page Range: 35-42
    Publication info: Pensoft Publishers 2013
    Subjects: Cylindrolepas  epibiont  mitochondrial genes 12S and 16S  redescription  Turtle barnacle  Variation
  4. By: Grajales, Alejandro.
    Type: Article
    Date: 2014-01-01
    Publication info: 2014-01-01
    Subjects: Aiptasia  Exaiptasia brasilensis  Exaiptasia pallida  Morphology  Sea anemones  Variation
  5. By: Zaher, Hussam - Souza,Ivan - Gower,David J. - Hingst-Zaher,Erika - Silva Jr,Nelson Jorge da
    Type: Article
    In: Papéis Avulsos de Zoologia (São Paulo)
    Date: 2005-01-01
    Subjects: Atractus albuquerquei  Dipsadinae  Distribution  Serpentes  Variation
  6. By: Warren, Andrew D. - Mielke, Olaf H. H. (Olaf Hermann Hendrik)
    Type: Article
    In: Revista Brasileira de Zoologia
    Date: 2005-03-01
    Subjects: Arizona  Mexico  Neotropical  Texas  Variation
  7. By: Stanley, Edward L.,
    Type: Article
    Date: 2013-09-05
    Publication info: 2013-09-05
    Subjects: Cordylidae  Ecophysiology  Morphology  Variation