Literature
  • Waagen 1984
  • Sexually dimorphic plastral kinesis in Heosemys spinosa. Herpetol. Rev. 15: 33-34.
  • Wagler 1830
  • Natürliches System der Amphibien, mit Vorangehander Classification der Säugtiere und Vögel. J. G. Cotta'schen Buchhandlung, München. 354 pp.
  • Wahlquist 1970
  • Sawbacks of the Gulf Coast. Int. Turtle & Tortoise Soc. J. 4(4): 10-13, 28.
  • Wahlquist, Folkerts 1973
  • Eggs and hatchlings of Barbour's map turtle, Graptemys barbouri Carr and Marchand. Herpetologica 29: 236-237.
  • 1903
  • A fresh-water turtle (Pelochelys cantoris, Gray) from New Guinea. Rec. Australian Mus. 5: 50-52.
  • 1995
  • A comparison of mtDNA restriction sites vs. control regional sequences in phylogeographic assessment of the musk turtle (Sternotherus minor). Mol. Ecol. 4: 365-373.
  • 1997
  • Mitochondrial DNA phylogeography and subspecies issues in the monotypic freshwater turtle Sternotherus odoratus. Copeia
  • 1989
  • Geochelone chilensis. Chaco tortoise. In: I. R. Swingland, and M. W. Klemens (eds.). The Conservation Biology of Tortoises, pp. 20-21. Occ. Pap. IUCN/SSC 5, Tortoise and Freshwater Specialists Group. IUCN, Gland, Switzerland.
  • , Gruss 1986
  • Investigaciones primarias sobre biología y comercio de Geochelone chilensis (Gray, 1870). Etapa 1. Grupo Herpetofauna, Fundación Vida Silvestre Argentina. 72 pp.
  • 1997
  • Exploitation and trade of Geochelone chilensis. In: J. van Abbema (ed.), Proceedings: Conservation, Restoration, and Management of tortoises and turtles—An International Conference, pp. 118-124. New York Turtle & Tortoise Soc., Purchase, New York.
  • 1988
  • Notas sobre la distribución de Acanthochelys spixii (D. y B., 1835) y Acanthochelys pallidipectoris (Freiberg, 1945) en la Argentina (Testudines: Testudinidae). Amphib. y Rept. (Conserv.) 1(5): 93-98.
  • , Micucci 1997
  • Land use and grazing in relation to the genus Geochelone in Argentina. In: J. van Abbema (ed.), Proceedings: Conservation, Restoration, and Management of tortoises and turtles—An International Conference, pp. 2-9. New York Turtle & Tortoise Soc., Purchase, New York.
  • 1989
  • Preliminary report of the research on the biology, ecology and conservation of the Chelonoides chilensis (sensu lato) (Gray, 1870) tortoise in Argentina. Results report, FVSA-TRAFFIC Sudamérica-CITES Secretariat. Buenos Aires, Argentina. 22 pp.
  • 1977
  • The Linnean type-specimen of Testudo geometrica. Zoon 5: 77-78.
  • 1995
  • Studies on the physiological ecology of incubation in Chinemys reevesii. Asiatic Herpetol Res. 6: 151-156.
  • 1976
  • Seasonal microhabitat selections of spotted turtles (Clemmys guttata) in Maryland elucidated by radioisotope tracking. Herpetologica 32: 60-64.
  • 1978
  • Terrapene ornata. Catalog. Amer. Amphib. Rept. 217: 1-4.
  • 1984
  • Relationships of chrysemyd turtles of North America (Testudines: Emydidae). Spl. Publ. Mus. Texas Tech. Univ. (21): 1-50.
  • Warner 1982
  • Terrapene c. carolina (eastern box turtle). Reproduction. Herpetol. Rev. 13: 48-49.
  • 1969
  • Additional observations of southeastern Massachusetts insular and mainland populations of painted turtles, Chrysemys picta. Copeia
  • 1964
  • Subspecific intergradation in the Nantucket Island, Massachusetts, population of the turtle Chrysemys picta. Copeia
  • Weatherby 1996
  • The North American box tortoise (Terrapene carolina): home range, movement patterns and site fidelity. In: B. Devaux (ed.), Proceedings—International Congress of Chelonian Conservation, pp. 245-246. Gonfaron, France: Editions SOPTOM.
  • 1970
  • Courtship and combat behavior in Gopherus berlandieri. Bull. Florida St. Mus. Biol. Sci. 15: 1-43.
  • , 1967
  • Systematics, fossil history, and evolution of the genus Chrysemys. Tulane Stud. Zool. 14: 63-73.
  • , 1967
  • A re-evaluation of fossil turtles of the Chrysemys scripta group. Tulane Stud. Geol. 5: 53-66.
  • 1986
  • Nests, eggs, and embryonic development of Carettochelys insculpta (Chelonia: Carettochelyidae) from Northern Australia. J. Zool. (London) 1: 521-550.
  • 1973b
  • Trionyx ferox. Catalog. Amer. Amphib. Rept. 138: 1-3.
  • 1973c
  • Trionyx muticus. Catalog. Amer. Amphib. Rept. 139: 1-2.
  • 1978
  • Steindachneri (Trionyx) Siebenrock, 1906: Proposed validation under the plenary powers (Reptilia, Testudines). Z.N.(S.) 2162. Bull. Zool. Nomencl. 35: 47-48.
  • 1973d
  • Trionyx spiniferus. Catalog. Amer. Amphib. Rept. 140: 1-4.
  • 1973a
  • Trionyx ater. Catalog. Amer. Amphib. Rept. 137: 1.
  • 1959
  • Description of a new softshell turtle from the southeastern United States. Univ. Kansas Publ. Mus. Natur. Hist. 11: 517-525.
  • 1995
  • Redescription and neotype designation of Pelochelys bibroni from southern New Guinea (Testudines: Trionychidae). Chelonian Conserv. Biol. 1: 301-310.
  • 1962
  • North American Recent soft-shelled turtles (Family Trionychidae). Univ. Kansas Publ. Mus. Natur. Hist. 13: 429-611.
  • 1961
  • Observations on the life histories of turtles (genus Pseudemys and Graptemys) in Lake Texoma, Oklahoma. Amer. Midl. Natur. 65: 193-214.
  • 1975
  • Taxonomic status of Aspidonectes californiana Rivers, 1889 (Testudines, Trionychidae). Copeia
  • 1980b
  • The trionychid turtle Trionyx steindachneri introduced in Hawaii? J. Herpetol. 14: 206-207.
  • 1980a
  • The identity of Testudo punctata Lacepède, 1788 (Testudines, Trionychidae). Bull. Mus. Natn. Hist. Nat., Paris (4)2: 547-557.
  • 1982
  • Taxonomic notes concerning the trionychid turtle Lissemys punctata (Lacepède). Amphibia-Reptilia 3: 179-184.
  • , Legler 1960
  • A new softshell turtle (genus Trionyx) from Coahuila, Mexico. Univ. Kansas Sci. Bull. 40: 21-30.
  • Weiss 1989
  • A chelonian puzzle: the Indo-Chinese box turtle in captivity. Plastron Papers. January: 20-24.
  • Weissinger 1987b
  • Testudo graeca anamurensis ssp. nov. aus Kleinasien. Ögh-Nachrichten (10/11): 14-17.
  • Weissinger 1987
  • Erstnachzucht der Großenkopfschildkröte, Platysternon m. megacephalum Gray, 1831 (Reptilia: Testudines: Platysternidae). ÖGH-Nachrichten 12/13: 72-74.
  • Weissinger 1987a
  • Haltung von Manouria impressa Guenter 1882 (Testudinidae). Elaphe 9: 9-10.
  • , Wellington 1985
  • A classification of the Amphibia and Reptilia of Australia. Australian J. Herpetol. 1: 73-129.
  • , Wellington 1984
  • A synopsis of the class Reptilia in Australia. Australian J. Herpetol. 1: 73-129.
  • Wermuth 1952
  • Testudo hermanni robertmertensi n. subsp. und ihr Vorkommen in Spanien. Senckenbergiana 33: 157-164.
  • Wermuth 1969
  • Eine neue Grosskopfschildkröte, Platysternon megacephalum vogeli, n. ssp. Aquar.-Terr. Zeitsch. 22: 372-374.
  • Wermuth 1958
  • Status and Nomenclatur der Maurischen Landschildkröte, Testudo graeca, in SW-Asien und NO-Afrika. Senck. Biol. 39(3/4): 372-374.
  • Wermuth, 1977
  • Liste der rezenten Amphibien und Reptilien. Testudines, Crocodylia, Rhynchocephalia. Das Tierreich, Berlin 28: 1-174.
  • Wermuth, 1961
  • Schildkröten, Krocodile, Brüchenechsen. G. Fischer, Jena. 422 pp.
  • 1901
  • Über Reptilien und Batrachier aus Ecuador und Neu-Guinea. Verh. Zool. Bot. Ges. Wien 51: 593-603.
  • Weser 1989
  • Zur Haltung, Zucht und Aufzucht von Pyxidea mouhotii. Verslag DGHT-Tagung: 34-35.
  • Whelan, Coakley 1982
  • Geochelone elegans (Indian star tortoise) fecundity. Herpetol. Rev. 13: 97.
  • Whetstone 1978
  • Additional record of the fossil snapping turtle Macroclemys schmidti from the Marshland Formation (Miocene) of Nebraska with notes on interspecific skull variation within the genus Macroclemys. Copeia
  • Whillans, Crossman 1977
  • Morphological parameters and spring activities in a central Ontario population of midland painted turtle, Chrysemys picta marginata (Agassiz). Can. Field-Natur. 91: 47-57.
  • Whitaker 1983
  • World's rarest turtle (we think) lays eggs in captivity. Hamadryad 8(1): 13.
  • , 1994
  • Emydura lavarackorum, a new Pleistocene turtle (Pleurodira: Chelidae) from fluviatile deposits at Riversleigh, northwestern Queensland. Rec. S. Aust. Mus. 27(2): 159-167.
  • , Moll 1991
  • Clutch size and annual reproductive potential of the turtle Graptemys geographica in a Missouri stream. J. Herpetol. 25: 493-494.
  • , 1973
  • The reproductive cycle and sexual dimorphism of the common snapping turtle, Chelydra serpentina serpentina. Herpetologica 29: 240-245.
  • Whittow, 1982
  • Basking behavior of the Hawaiian green turtle (Chelonia mydas). Pacific Science 36: 129-139.
  • Wibbels 1990
  • Seasonal changes in serum gonadal steroids associated with migration, mating, and nesting in the loggerhead sea turtle (Caretta caretta). Gen. Comp. Endocrinol. 79: 154-164.
  • Wibbels 1991
  • Sex determination in Cagle's map turtle: Implications for evolution, development, and conservation. Can. J. Zool. 69: 2693-2696.
  • 1984
  • Beobachtungen bei mehrjähriger Zucht von Phrynops geoffroanus geoffroanus (Schweigger, 1812) (Testudines: Chelidae). Salamandra 20(4): 185-191.
  • Wied-Neuweid 1839
  • Reise in das innere Nord-America in den Jahren 1832 bis 1834. J. Hoelscher, Coblenz. 653 pp.
  • Wied-Neuweid 1865
  • Verzeichniss der Reptilien, welche auf einer Reise im nördlichen America beobachtet wurden. Nova Acta Acad. Leopold.-Carol. 32: 1-146.
  • 1828
  • Beiträge zur Amphibienkunde. Isis v. Oken, 21: 364-383.
  • 1835
  • Beiträge zur Zoologie, gesammelt auf einer Reise um die Erde, von Dr. F. J. F. Meyen. Amphibien, Nova Acta Acad. Leopold.-Carol. 17: 185-268.
  • Wilhoft 1983
  • Effects of temperature on sex determination in embryos of the snapping turtle, Chelydra serpentina. J. Herpetol. 17: 38-42.
  • Wilke 1983
  • Breeding the pancake tortoise, Malacochersus tornieri, at Frankfurt Zoo. Int. Zoo Yearbook 23: 137-139.
  • 1950b
  • Testudo cubensis and the evolution of Western Hemisphere tortoises. Bull. Amer. Mus. Natur. Hist. 95: 1-36.
  • 1956
  • Pseudemys scripta callirostris from Venezuela with a general survey of the scripta series. Bull. Mus. Comp. Zool. Harvard 115: 145-160.
  • 1954a
  • A key and description of the living species of the genus Podocnemis (sensu Boulenger) (Testudines, Pelomedusidae). Bull. Mus. Comp. Zool. Harvard 111: 279-295.
  • 1952
  • A new fossil tortoise from Mona Island, West Indies, and a tentative arrangement of the tortoises of the world. Bull. Amer. Mus. Natur. Hist. 99: 541-560.
  • 1954b
  • A new Miocene species of Pelusios and the evolution of that genus. Breviora (25): 1-7.
  • 1960
  • Two species of tortoises in northern South America. Breviora (120): 1-13.
  • 1950a
  • Variation and selection of the cervical central articulations of living turtles. Bull. Amer. Mus. Natur. Hist. 94: 505-562.
  • , 1952
  • The plastron of soft-shelled turtles (Testudinata, Trionychidae): a new interpretation. J. Morphol. 90: 263-280.
  • , 1976
  • Characterization of myoglobins from Atlantic and Pacific green sea turtles. Comp. Biochem. Physiol. 54B: 253-259.
  • , Han 1964
  • A comparison of the density of Terrapene coahuila and T. carolina. J. Ohio Herpetol. Soc. 4: 105.
  • 1994
  • Home range, activity, and use of burrows of juvenile gopher tortoises in central Florida. In: R. B. Bury and D. J. Germano (eds.), Biology of North American tortoises, pp. 147-160. U. S. Fish Wildl. Serv. Res. Rep. 13.
  • 1989
  • Clemmys guttata (spotted turtle). Reproduction. Herpetol. Rev. 20: 69-70.
  • Wischuf, 1996
  • Eine neue Unterart der Bachschildkröte (Mauremys caspica ventrimaculata subsp. nov.) aus dem Iranischen Hochland. Salamandra 32(2): 113-122.
  • 1989
  • Matamata turtles ambush but do not herd prey. J. Herpetol. 23: 297-299.
  • 1980
  • Growth of captive hawksbill turtles, Eretmochelys imbricata, in western Samoa. Bull. Marine Sci. 30: 909-912.
  • 1983
  • Synopsis of biological data on the hawksbill turtle, Eretmochelys imbricata (Linnaeus, 1766). FAO Fish. Synopsis 137. 78 pp.
  • 1953
  • Mating behavior of captive loggerhead turtles, Caretta caretta caretta. Copeia
  • 1984
  • Captive breeding of Kemp's ridley. Marine Turtle Newsl. 29: 12.
  • 1988
  • Captive reproduction of Kemp's ridley Lepidochelys kempi. Herpetol. J. 1: 247-249.
  • 1980
  • Reproductive biology of captive green sea turtles Chelonia mydas. Amer. Zool. 20: 499-505.
  • 1976
  • Stupendemys geographicus, the world's largest turtle. Breviora (436): 1-31.
  • 1973
  • A possible correlation between the ecology of living African pelomedusid turtles and their relative abundance in the fossil record. Copeia
  • 1977
  • Evolution of the emydine turtles Graptemys and Malaclemys (Reptilia, Testudines, Emydidae). J. Herpetol. 11: 415-421.
  • , Moody 1976
  • Unique arrangement of carapace bones in the South American chelid turtle Hydromedusa maximiliani (Mikan). Zool. J. Linn. Soc. 59: 69-78.
  • 1996
  • Evolution and phylogeny of leatherback turtles (Dermochelyidae), with descriptions of new fossil taxa. Chelonian Conserv. Biol. 2(2): 266-286.
  • Woodbury 1952
  • Hybrids of Gopherus berlandieri and G. agassizii. Herpetologica 8: 33-36.
  • Woodbury, 1948
  • Studies of the desert tortoise, Gopherus agassizii. Ecol. Monogr. 18: 145-200.
  • 1957
  • Colour change in a chelonian. Nature (London) 179: 1255-1256.
  • Worrell 1964
  • Reptiles of Australia. Angus and Robertson Ltd., Sydney. 207 pp.
  • 1982
  • The distribution and population biology of the gopher tortoise (Gopherus polyphemus) in South Carolina. Master's thesis, Clemson Univ., Clemson, South Carolina.