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  1. Abbildung und Beschreibung blühender Cacteen /von L. Pfeiffer und Fr. Otto ; figures des cactées en fleur, peintes et lithographiées d'après nature avec un texte explicatif, par Louis Pfeiffer et Fr. Otto.
    By: Pfeiffer, Ludwig Georg Karl, - Dondorf, Bernhard, - Fischer, Theodor Georg Viktor. - Fischer, Theodor. - Francke, Gustav. - Otto, Friedrich - Prestele, Franz Joseph Ulrich.
    Publication info: Cassel :T. Fischer,1843-1850.
    Holding Institution: Missouri Botanical Garden, Peter H. Raven Library
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  2. Abbildung und Beschreibung blühender Cacteen [...] I. Band
    By: Pfeiffer, Ludwig Georg Karl,
    Publication info: Cassel : Verlag von Theodor Fischer 1838-1843
    Holding Institution: Biblioteca Digital del Real Jardin Botanico de Madrid
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  3. Abbildung und Beschreibung blühender Cacteen [...] II. Band
    By: Pfeiffer, Ludwig Georg Karl,
    Publication info: Cassel : Druck und Verlag von Theodor Fischer 1845-1850
    Holding Institution: Biblioteca Digital del Real Jardin Botanico de Madrid
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  4. Catalogue of Auriculidae, Proserpinidae, and Truncatelidae in the collection of the British Museum,
    By: British Museum (Natural History). Department of Zoology. - Pfeiffer, Ludwig Georg Karl,
    Publication info: LondonPrinted by order of the Trustees1857
    Holding Institution: University of Toronto - Gerstein Science Information Centre
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  5. Catalogue of Phaneropneumona, or terrestrial operculated Mollusca, in the collection of the British Museum / [prepared by L. Pfeiffer].
    By: British Museum (Natural History). Department of Zoology. - Pfeiffer, Ludwig Georg Karl,
    Publication info: London :Printed by order of the Trustees,1852
    Holding Institution: Smithsonian Libraries
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  6. Catalogue of Pulmonata or air-breathing Mollusca, in the collection of the British Museum; pt. 1.
    By: British Museum (Natural History). Department of Zoology. - Pfeiffer, Ludwig Georg Karl,
    Publication info: LondonPrinted by order of the Trustees1855
    Holding Institution: University of Toronto - Gerstein Science Information Centre
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  7. Conspectus Cyclostomaceorum emendatus et auctus. Pneumonopomorum monographiae prodromus. Auctore Dr. Ludovico Pfeiffer.
    By: Pfeiffer, Ludwig Georg Karl,
    Publication info: Cassellis,Th Fischeri,1852.
    Holding Institution: Smithsonian Libraries
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  8. Correspondence : Pfeiffer (Ludwig) and Engelmann (George).
    By: Pfeiffer, Ludwig Georg Karl,
    Holding Institution: Missouri Botanical Garden, Peter H. Raven Library
    BHL Collections: Engelmann Papers, Missouri Botanical Garden
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  9. Enumeratio diagnostica cactearum hucusque cognitarum /auctore Ludovico Pfeiffer.
    By: Pfeiffer, Ludwig Georg Karl,
    Publication info: Berolini : L. Oehmigke, 1837.
    Holding Institution: Missouri Botanical Garden, Peter H. Raven Library
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  10. Die Familie der Heliceen : fünfte Abtheilung /
    By: Kobelt, Wilhelm, - Chemnitz, Johann Hieronymus, - Martini, Friedrich Heinrich Wilhelm, - Pfeiffer, Ludwig Georg Karl,
    Publication info: Nürnberg :Verlag von Bauer & Raspe (Emil Küster),1905.
    Holding Institution: Smithsonian Libraries
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  11. Die Familie der Heliceen : vierte Abtheilung /
    By: Kobelt, Wilhelm, - Chemnitz, Johann Hieronymus, - Martini, Friedrich Heinrich Wilhelm, - Pfeiffer, Ludwig Georg Karl,
    Publication info: Nürnberg :Verlag von Bauer & Raspe (Emil Küster),1897.
    Holding Institution: Smithsonian Libraries
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  12. Die Familie der Venusmuscheln, Veneracae : nebst einem Anhange, enthalend die Chemnitz'schen Lucinen, Galateen und Corbis /
    By: Pfeiffer, Ludwig Georg Karl, - Chemnitz, Johann Hieronymus, - Martini, Friedrich Heinrich Wilhelm,
    Publication info: Nürnberg :Verlag von Bauer und Raspe (Ludwig Korn),1869.
    Holding Institution: Smithsonian Libraries
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  13. Flora von Niederhessen und Münden. Beschreibung aller im Gebiete wildwachsenden und im Grossen angebauten Pflanzen.
    By: Pfeiffer, Ludwig Georg Karl,
    Publication info: Kassel,T. Fischer,1847-1855.
    Holding Institution: New York Botanical Garden, LuEsther T. Mertz Library
    BHL Collections: New York Botanical Garden
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  14. Die Gattung Cylindrella Pfr. in Abbildungen nach der Natur mit Beschreibungen / von Louis Pfeiffer.
    By: Pfeiffer, Ludwig Georg Karl, - Chemnitz, Johann Hieronymus, - Martini, Friedrich Heinrich Wilhelm,
    Publication info: Nürnberg :Verlag von Bauer und Raspe, Julius Merz,1862.
    Holding Institution: Smithsonian Libraries
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  15. Die Gattungen Bulimus, Partula, Achatinella, Achatina und Azeca : in Abbildungen nach der Natur mit Beschreibungen /
    By: Kuster, H. C. (Heinrich Carl), - Chemnitz, Johann Hieronymus, - Martini, Friedrich Heinrich Wilhelm, - Pfeiffer, Ludwig Georg Karl,
    Publication info: Nürnberg :Verlag von Bauer und Raspe (Julius Merz),1845-l855.
    Holding Institution: Smithsonian Libraries
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  16. Die Gattungen Daudebardia, Simpulopsis, Vitrina und Succinea /
    By: Pfeiffer, Ludwig Georg Karl, - Chemnitz, Johann Hieronymus, - Martini, Friedrich Heinrich Wilhelm,
    Publication info: Nürnberg :Verlag von Bauer & Raspe,1854.
    Holding Institution: Smithsonian Libraries
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  17. Die gedeckelten Lungenschnecken (Helicinacea et Cyclostomacea) : in Abbildungen nach der Natur / von Dr. Louis Pfeiffer zu Kassel.
    By: Kobelt, Wilhelm, - Pfeiffer, Ludwig Georg Karl, - Chemnitz, Johann Hieronymus, - Henderson, J. B. - Martini, Friedrich Heinrich Wilhelm, - Library of Congress.
    Publication info: Nürnberg :Verlag von Bauer und Raspe (Julius Merz),1846.
    Holding Institution: Smithsonian Libraries
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  18. Die gedeckelten Lungenschnecken (Helicinacea et Cyclostomacea) : in Abbildungen nacht der Natur mit Beschreibungen
    By: Pfeiffer, Ludwig Georg Karl, - Chemnitz, Johann Hieronymus, - Martini, Friedrich Heinrich Wilhelm,
    Publication info: Nürnberg:Verlag von Bauer & Raspe (Julius Merz),1846.
    Holding Institution: Smithsonian Libraries
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  19. Index molluscorum maris japonici, conscriptus et tabulis iconum xvi illustratus a Guilielmo Dunker.
    By: Dunker, Wilhelm, - Pfeiffer, Ludwig Georg Karl,
    Publication info: Cassellis Cattorum [Kassel]sumptibus T. Fischer,1882.
    Holding Institution: Smithsonian Libraries
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  20. Kritisches Register zu Martini und Chemnitz's Systematischem Konchylien-Kabinet / von Dr. L. Pfeiffer.
    By: Pfeiffer, Ludwig Georg Karl, - Chemnitz, Johann Hieronymus, - Martini, Friedrich Heinrich Wilhelm,
    Publication info: Kassel :In Kommission bei Th. Fischer,1840.
    Holding Institution: Smithsonian Libraries
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  21. Kritisches Register zu Martini und Chemnitz's Systematischem Konchylien-Kabinet / von Dr. L. Pfeiffer.
    By: Pfeiffer, Ludwig Georg Karl, - Chemnitz, Johann Hieronymus, - Martini, Friedrich Heinrich Wilhelm,
    Publication info: Kassel :In Kommission bei Th. Fischer,1840.
    Holding Institution: Smithsonian Libraries
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  22. Malakozoologische Blätter.
    By: Clessin, Steph., - Menke, Karl Theodor, - Pfeiffer, Ludwig Georg Karl,
    Publication info: Cassel :T. Fischer,1854-1891.
    Holding Institution: Multiple institutions
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  23. Monographia auriculaceorum viventium. Sistens descriptiones systematicas et criticas omnium hujus familiae generum et specierum hodie cognitarum, nec non fossilium enumeratione. Accedente proserpinaceorum nec non generis truncatellae historia. Auctore Ludovico Pfeiffer ...
    By: Pfeiffer, Ludwig Georg Karl,
    Publication info: Cassellis,Sumptibus Theodore Fischer,1856.
    Holding Institution: Smithsonian Libraries
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  24. Monographia heliceorum viventium : sistens descriptiones systematicas et criticas omnium huius familiae generum et specierum hodie cognitarum / auctore Ludovico Pfeiffer.
    By: Pfeiffer, Ludwig Georg Karl,
    Publication info: Lipsiae [Leipzig] :Brockhaus,1848-
    Holding Institution: Harvard University, Museum of Comparative Zoology, Ernst Mayr Library
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  25. Monographia heliceorum viventium : sistens descriptiones systematicas et criticas omnium hujus familiae generum et specierum hodie cognitarum / auctore Ludovico Pfeiffer.
    By: Pfeiffer, Ludwig Georg Karl,
    Publication info: Lipsiae [Leipzig] :F.A. Brockhaus,[1847]-1877.
    Holding Institution: Harvard University, Museum of Comparative Zoology, Ernst Mayr Library
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  26. Monographia heliceorum viventium : sistens descriptiones systematicas et criticas omnium huius familiae generum et specierum hodie cognitarum / auctore Ludovico Pfeiffer.
    By: Pfeiffer, Ludwig Georg Karl,
    Publication info: Lipsiae [Leipzig] :Brockhaus,1848-
    Holding Institution: Multiple institutions
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  27. Monographia pneumonopomorum viventium ... auctore Ludovico Pfeiffer. Supplementum primum /
    By: Pfeiffer, Ludwig Georg Karl,
    Publication info: Cassellis :T. Fischer,1858.
    Holding Institution: Smithsonian Libraries
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  28. Monographia pneumonopomorum viventium ... auctore Ludovico Pfeiffer. Supplementum tertium monographiae auriculaceorum, parte secunda auctum /
    By: Pfeiffer, Ludwig Georg Karl,
    Publication info: Cassellis :sumptibus T. Fischer,1876.
    Holding Institution: Smithsonian Libraries
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  29. Monographia pneumonopomorum viventium ... auctore Ludovico Pfeiffer. Supplementum secumdum /
    By: Pfeiffer, Ludwig Georg Karl,
    Publication info: Cassellis :sumptibus T. Fischer,1865.
    Holding Institution: Smithsonian Libraries
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  30. Monographia pneumonopomorum viventium ... accedente fossilium enumeratione. Autore Ludovico Pfeiffer ...
    By: Pfeiffer, Ludwig Georg Karl,
    Publication info: Cassellis,sumptibus Theodori Fischer; [etc., etc.]1852.
    Holding Institution: Smithsonian Libraries
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  31. Museum Boltenianum, sive, Catalogus cimeliorum e tribus regnis naturae quae olim collegerat Joa. Fried. Bolten ....
    By: Bolten, Joachim Friedrich, - Lichtenstein, Anton August Heinrich, - Pfeiffer, Ludwig Georg Karl, - Röding, Peter Friedrich.
    Publication info: Hamburgi :Typis Johan. Christi. Trappii,[1798]
    Holding Institution: Smithsonian Libraries
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  32. Naturgeschichte deutscher Land- und Süsswasser-Mollusken /
    By: Pfeiffer, Ludwig Georg Karl, - Grossherzogliche Sächs, - Heinrich Ludwig Brönner (Firm),
    Publication info: Weimar :in Commission des Grossherzogl. Sächs. privil. Landes-Industrie-Comptoirs,1821-1828.
    Holding Institution: Smithsonian Libraries
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  33. Nomenclator botanicus [...] Vol. I. Pars altera
    By: Pfeiffer, Ludwig Georg Karl,
    Publication info: Cassellis : Sumptibus Theodori Fischeri 1874-1875
    Holding Institution: Biblioteca Digital del Real Jardin Botanico de Madrid
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  34. Nomenclator botanicus [...] Vol. I. Pars prior
    By: Pfeiffer, Ludwig Georg Karl,
    Publication info: Cassellis : Sumptibus Theodori Fischeri 1871-1873
    Holding Institution: Biblioteca Digital del Real Jardin Botanico de Madrid
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  35. Nomenclator botanicus [...] Vol. II. Pars altera
    By: Pfeiffer, Ludwig Georg Karl,
    Publication info: Cassellis : Sumptibus Theodori Fischeri 1874
    Holding Institution: Biblioteca Digital del Real Jardin Botanico de Madrid
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  36. Nomenclator botanicus [...] Vol. II. Pars prior
    By: Pfeiffer, Ludwig Georg Karl,
    Publication info: Cassellis : Sumptibus Theodori Fischeri 1874
    Holding Institution: Biblioteca Digital del Real Jardin Botanico de Madrid
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  37. Nomenclator botanicus. Nominum ad finem anni 1858 publici juris factorum, classes, ordines, tribus, familias, divisiones, genera, subgenera vel sectiones designatium enumeratio alphabetica. Adjectis auctoribus, temporibus, locis systematicis, apud varios, notis literariis atque etymologicis et synonymis
    By: Pfeiffer, Ludwig Georg Karl,
    Publication info: Cassellis,Sumptibus T. Fischeri,1873-74.
    Holding Institution: New York Botanical Garden, LuEsther T. Mertz Library
    BHL Collections: New York Botanical Garden
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  38. Nomenclator heliceorum viventium : quo continetur nomina omnium hujus familiae generum et specierum hodie cognitarum, disposita ex affinitate naturali / Opus postumum Ludovici Pfeiffer.
    By: Pfeiffer, Ludwig Georg Karl, - Clessin, S.
    Publication info: Cassellis :Sumptibus Theodori Fischeri,1878-1881.
    Holding Institution: Harvard University, Museum of Comparative Zoology, Ernst Mayr Library
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  39. Novitates conchologicae. Series prima. Mollusca extramarina. Beschreiber und Abbildung, neuer oder kritischer Land-und Süsswasser-Mollusken, von Louis Pfeiffer.
    By: Pfeiffer, Ludwig Georg Karl, - Fischer, Theodor,
    Publication info: Cassel,T. Fischer,1854-79.
    Holding Institution: Smithsonian Libraries
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  40. Die Schnirkelschnecken (Gattung Helix) in Abbildungen nach der Natur /
    By: Pfeiffer, Ludwig Georg Karl, - Chemnitz, Johann Hieronymus, - Martini, Friedrich Heinrich Wilhelm,
    Publication info: Nürnberg :Verlag von Bauer und Raspe (Julius Merz),1846.
    Holding Institution: Smithsonian Libraries
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  41. Die Schnirkelschnecken (Gattung Helix) in Abbildungen nach der Natur /
    By: Pfeiffer, Ludwig Georg Karl, - Chemnitz, Johann Hieronymus, - Martini, Friedrich Heinrich Wilhelm,
    Publication info: Nürnberg :Verlag von Bauer und Raspe (Julius Merz),1846.
    Holding Institution: Smithsonian Libraries
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  42. Die Schnirkelschnecken (Gattung Helix) in Abbildungen nach der Natur /
    By: Pfeiffer, Ludwig Georg Karl, - Chemnitz, Johann Hieronymus, - Martini, Friedrich Heinrich Wilhelm,
    Publication info: Nürnberg :Verlag von Bauer und Raspe (Julius Merz),1846.
    Holding Institution: Smithsonian Libraries
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  43. Symbolae ad historiam heliceorum / auctore Lud. Pfeiffer.
    By: Pfeiffer, Ludwig Georg Karl,
    Publication info: Cassellis :Sumptibus & typis Th. Fischeri,1841-1846.
    Holding Institution: Smithsonian Libraries
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  44. Synonymia botanica locupletissima generum, sectionum vel subgenerum ad finem anni 1858 promulgatorum : In forma conspectus systematici totius regni vegetabilis schemati Endlicheriano adaptati /
    By: Pfeiffer, Ludwig Georg Karl,
    Publication info: Cassellis :Sumptibus T. Fischer,1870-[1871].
    Holding Institution: Harvard University Botany Libraries
    BHL Collections: Harvard University Herbarium, Botany Libraries
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  45. Synonymiae botanicae 1870 editae supplementum primum /
    By: Pfeiffer, Ludwig Georg Karl,
    Publication info: Cassellis :sumptibus T. Fischer,1874.
    Holding Institution: Harvard University Botany Libraries
    BHL Collections: Harvard University Herbarium, Botany Libraries
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  46. Vollständige synonymik der bis zum ende des jahres 1870 publicirten botanischen gattungen, untergattungen und abtheilungen : zugleich systematische Uebersicht des ganzen Gewächsreiches mit den neueren Bereicherungen und Berichtigungen nach Endlicher's Schema /
    By: Pfeiffer, Ludwig Georg Karl,
    Edition: Neue Ausgabe.
    Publication info: Gera :C.B. Griesbach's Verlag,1887.
    Holding Institution: Harvard University Botany Libraries
    BHL Collections: Harvard University Herbarium, Botany Libraries
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  47. Zeitschrift für Malakozoologie.
    By: Menke, Karl Theodor, - Pfeiffer, Ludwig Georg Karl,
    Publication info: Hannover :Hahn'schen Hofbuchhandlung,1844-1853.
    Holding Institution: Smithsonian Libraries
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  1. 15. DESCRIPTIONS OF THIRTEEN NEW SPECIES OF LAND-SHELLS FROM FORMOSA, IN THE COLLECTION OF THE LATE HUGH CUMING, COLLECTED BY MR. ROBERT SWINHOE, VICE-CONSUL OF THAT ISLAND
    By: Pfeiffer, Ludwig Georg Karl,
    Type: Article
    In: Proceedings of the Zoological Society of London.
    Volume: 1865
    Date: 1865
    Page Range: 828--831
    Publication info: London :Academic Press, [etc.],1833-1965.
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  2. 4. Descriptions of Eight New Species of Cyclostomacea, from the Collection of H. Cuming, Esq
    By: Pfeiffer, Ludwig Georg Karl,
    Type: Article
    In: Proceedings of the Zoological Society of London.
    Volume: 1862
    Date: 1862
    Page Range: 115--117
    Publication info: London :Academic Press, [etc.],1833-1965.
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  3. 5. Description of a New Species of Helix (Nanina)
    By: Pfeiffer, Ludwig Georg Karl,
    Type: Article
    In: Proceedings of the Zoological Society of London.
    Volume: 1862
    Date: 1862
    Page Range: 117--117
    Publication info: London :Academic Press, [etc.],1833-1965.
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