Literature
  • 1973
  • Pyxidea mouhotii, eine landbewohende Emydide Südostasiens (Testudines). Salamandra 9: 49-53.
  • 1971
  • Beobachtungen an jungen Chitra indica insbesondere zum Beuteerwerb (Testudines, Trionychidae). Salamandra 7: 31-37.
  • 1975
  • Chinemys reevesii var. unicolor und Clemmys bealei var. quadriocellata— Ausprägungen von Sexualdimorphismus der beiden "Nominatformen." Salamandra 11: 20-26.
  • , 1976
  • Nachzucht in der zweiten Generation von Staurotypus salvinii mit weiteren Beobachtungen zum Fortpflanzungsverhalten (Testudines, Kinosternidae). Salamandra 12: 5-16.
  • Saint-Girons 1991
  • Histologie comparée des fosses nasales de quelques tortues marines (Dermochelys coriacea et Chelonia mydas) et d'eaux douces (Emys orbicularis et Pseudemys scripta) (Reptilia, Dermochelydae, Cheloniidae, Emydidae). Bijd. Dierk. Hague 61: 51-61.
  • Samour 1987
  • A survey of the Aldabra giant tortoise populations introduced on Curieuse Island, Seychelles. Biol. Conserv. 41: 147-158.
  • Sampaio 1971
  • A karyological study of two species of tortoises from the Amazon Region of Brazil. Cytologia (Tokyo) 36: 199-204.
  • Sanchez-Villagra 1995
  • Geographic variation in the matamata turtle, Chelus fimbriatus, with observations on its shell morphology and morphometry. Chelonian Conserv. Biol. 1(4): 293-300.
  • 1974
  • Sexual dimorphism in the Barbour's map turtle, Malaclemys barbouri (Carr and Marchand). Master's thesis, Univ. South Florida, Tampa.
  • Santhuff, 1990
  • Graptemys barbouri. Catalog. Amer. Amphib. Rept. 421: 1-2.
  • Sarker, 1996
  • Population, eco-biological status, captive propagation and conservation problems of Lissemys punctata in Bangladesh. In: B. Devaux (ed.), Proceedings—International Congress of Chelonian Conservation, pp. 43-45. Gonfaron, France: Editions SOPTOM
  • Sarma 1988
  • A new record of the Assam roofed turtle Kachuga sylhetensis (Jerdon) from the Manas Wildlife Sanctuary, Assam. J. Bombay Nat. Hist. Soc. 85: 623.
  • , Itoh 1967
  • Preliminary notes on the karyotype of two species of turtles, Clemmys japonica and Geoclemys reevesii. Chromosome Infor. Serv. (8): 21-22.
  • 1997
  • Origin and distribution of the Chinese soft-shelled turtle, Pelodiscus sinensis (Reptilia: Testudines), in islands of Okinawa Prefecture, Japan. Biol. Mag. Okinawa 35: 19-26.
  • Satyamurti 1962
  • Guide to the lizards, crocodiles, turtles and tortoises in the reptile gallery. Madras Gov't. Mus. Madras, India. 45 pp.
  • 1953
  • Remarks on the Indo-chinese turtle Annamemys merkleni. Ann. Mag. Natur. Hist. (London) (12)6: 468-472.
  • Saxena 1994
  • Captive husbandry of the Malayan box turtle (Cuora amboinensis) from the Nicobar Islands. Hamadryad 19: 93-94.
  • Schamberger, 1986
  • The application of habitat modeling to the desert tortoise (Gopherus agassizii) Herpetologica 42: 134-138.
  • , 1844
  • Over de Schildpadden van den Indischen Archipal., beschrijving einer nieuwe soort van Sumatra. In: C. J. Temminck, Verhandelingen over de Natuurlijke Geschiedenis der Nederlandsche Overzeesche Bezittingen, 1839-44. Zool., pt. 3, Reptilia, pp. 29-36.
  • Schleich 1996
  • Beitrag zur Systematik des Formenkreises von Mauremys leprosa (Schweigger) in Marokko. Teil I. (Reptilia, Chelonii, Emydidae). Spixiana Suppl. 22: 29-59.
  • Schleich 1996
  • Amphibians and reptiles of North Africa: biology, systematics, field guide. Koeltz Scientific Books, Koenigstein, Germany. 627 pp.
  • Schleich, 1984
  • Eine neue Grosskopfschildkröte, Platysternon megacephalum tristernalis nov. ssp., aus Yunnan, China. Spixiana 7: 67-73.
  • Schmalz, 1994
  • Malacochersus tornieri: Beobachtungen bei Haltung und Nachzucht. Salamandra 30: 12-21.
  • 1970
  • Zur Fortpflanzung der Kreuzbrustschildkröte (Staurotypus salvinii) in Gefangenschaft. Salamandra 6: 3-10.
  • 1966
  • Morphologische Unterschiede bei Chelus fimbriatus verschiedener Herkunft. Salamandra 2: 74-78.
  • 1947
  • A new kinosternid turtle from Colombia. Fieldiana: Zool. 31: 109-112.
  • 1927b
  • The reptiles of Hainan. Bull. Amer. Mus. Natur. Hist. 54: 395-465.
  • 1919
  • Contributions to the herpetology of the Belgian Congo based on the collection of the American Congo Expedition, 1909-1915. Part I. Turtles, crocodiles, lizards, and chameleons. Bull. Amer. Mus. Natur. Hist. 39: 385-684.
  • 1925
  • New reptiles and a new salamander from China. Amer. Mus. Novitates (157): 1-5.
  • 1927a
  • Notes on Chinese reptiles. Bull. Amer. Mus. Natur. Hist. 54: 467-551.
  • 1928
  • Scientific survey of Porto Rico and the Virgin Islands. New York Acad. Sci. 160 pp.
  • , Owens 1944
  • Amphibians and reptiles of northern Coahuila, Mexico. Zool. Ser. Field Mus. Natur. Hist. 29: 97-115.
  • 1783
  • Allgemeine Naturgeschichte der Schildkröten, nebst einem System. Verseichnisse der einzelnen Arten. Leipzig. 364 pp.
  • 1792
  • Beschreibung und Abbildung einer neuen Wasserschildkröte. Schr. Ges. naturf. Freunde Berlin 10: 259-283.
  • Schoepff 1792-1801
  • Historia Testudinum iconibus illustrata. Palm, Erlangae. 136 pp. [Latin version of Naturgeschichte der Schildkröten mit Abbildungen erlautert. Palm, Erlangen. 160 pp. 1792: 1-32; 1793: 33-88; 1795: 89-136; 1801: 137-160.]
  • Schomburgk 1848
  • Reisen in British Guiana in... 1840-1844. I. Fauna. Amphibien, pp. 645-661. Leipzig.
  • 1955
  • The diamondback terrapins (Malaclemys terrapin) of peninsular Florida. Proc. Biol. Soc. Washington 68: 157-164.
  • 1956b
  • The relationships and nomenclature of the soft-shelled turtles (genus Trionyx) of the southeastern United States. Charleston Mus. Leaflet 26: 1-21.
  • 1956a
  • Geographic variation in the chicken turtle. Fieldiana: Zool. 34: 461-503.
  • , 1975
  • A check-list of West Indian amphibians and reptiles. Carnegie Mus. Natur. Hist. Spl. Publ. (1): 1-216.
  • 1968
  • December emergence of hatchling Terrapene carolina in Philadelphia, PA. Philadelphia Herpetol. Soc. Bull. 16: 20.
  • Schweigger 1812
  • Monographiae Cheloniorum. Königsberg. Arch. Naturwiss. Math. 1: 271-368, 406-458.
  • Schweigger 1814
  • Prodromi monographie cheloniorum. Regiomonti. 58 pp.
  • , Koons 1994
  • Macroclemys temminckii (alligator snapping turtle). Reproduction. Herpetol. Rev. 25: 64.
  • Scribner 1995
  • Factors contributing to temporal and age-specific genetic variation in the freshwater turtle Trachemys scripta. Copeia
  • Seeliger 1945
  • Variation in the Pacific mud turtle. Copeia
  • Seidel 1981
  • A taxonomic analysis of pseudemyd turtles (Testudines: Emydidae) from the New River and phenetic relationships in the subgenus Pseudemys. Brimleyana (6): 25-44.
  • Seidel 1978
  • Kinosternon flavescens. Catalog. Amer. Amphib. Rept. 216: 1-4.
  • Seidel 1995
  • How many species of cooter turtles and where is the scientific evidence?--A reply to Jackson. Chelonian Conservation Biol. 1: 333-336.
  • Seidel 1990
  • Growth and population characteristics of the slider turtle, Trachemys decussata, on Grand Cayman Island. J. Herpetol. 24(2): 191-196.
  • Seidel 1994
  • Morphometric analysis and taxonomy of cooter and red-bellied turtles in the North American genus Pseudemys (Emydidae). Chelonian Conservation Biol. 1: 117-130.
  • Seidel 1988
  • Revision of the West Indian emydid turtles (Testudines). Amer. Mus. Novitates (2918): 1-41.
  • Seidel, Ernst 1996
  • Pseudemys. Catalog. Amer. Amphib. Rept. 625: 1-5.
  • Seidel, Ernst 1998
  • Pseudemys peninsularis. Catalog. Amer. Amphib. Rept. 669: 1-4.
  • Seidel, 1986
  • Chrysemys, Pseudemys, Trachemys (Testudines: Emydidae): Did Agassiz have it right? Herpetologica 42: 242-248.
  • Seidel, 1989
  • Variation in turtle myoglobins (subfamily Emydinae: Testudines) examined by isoelectric focusing. Comp. Biochem. Physiol. 94B: 569-573.
  • Seidel, 1987
  • Biochemical comparisons among West Indian Trachemys (Emydidae: Testudines). Copeia
  • Seidel, Dreslik 1996
  • Pseudemys concinna. Catalog. Amer. Amphib. Rept. 626: 1-12.
  • Seidel, Lucchino 1981
  • Allozymic and morphological variation among the musk turtles Sternotherus carinatus, S. depressus, and S. minor (Kinosternidae). Copeia
  • Seidel, 1980
  • Aspects of evaporative water loss in the mud turtles Kinosternon hirtipes and Kinosternon flavescens. Comp. Biochem. Physiol. 67A: 593-598.
  • Seidel, 1997
  • Courtship behavior provides additional evidence for a monophyletic Pseudemys, and comments on Mesoamerican Trachemys (Testudines: Emydidae). Herpetol. Rev. 28: 70-72.
  • Seidel, 1991
  • Morphological variation in turtles of the genus Pseudemys (Testudines: Emydidae) from central Atlantic drainages. Brimleyana (17): 105-135.
  • Seidel 1986
  • Biochemical comparisons and phylogenetic relationships in the family Kinosternidae (Testudines). Copeia
  • Seidel 1981
  • Phylogenetic relationships among musk turtles (Genus Sternotherus) and genic variation in Sternotherus odoratus. Herpetologica 37: 161-165.
  • 1980a
  • Courtship and mating behavior of the diamondback terrapin Malaclemys terrapin tequesta. J. Herpetol. 14: 420-421.
  • 1980b
  • Nesting habits of diamondback terrapins (Malaclemys terrapin) on the Atlantic Coast of Florida. Trans. Kansas Acad. Sci. 83: 239-246.
  • 1984
  • Parameters of two populations of diamondback terrapins (Malaclemys terrapin) on the Atlantic Coast of Florida. In: R. A. Seigel, L. E. Hunt, J. L. Knight, L. Malaret, and N. L. Zuschlag (eds.), Vertebrate ecology and systematics: a tribute to Henry S. Fitch, pp. 77-87. Univ. Kansas Mus. Nat. Hist. Spec. Publ. 10.
  • Sexton 1960
  • Notas sobre la reproducción de una tortuga Venezolana, la Kinosternon scorpioides. Soc. Cienc. Natur. LaSalle Mem. 20: 189-197.
  • Sexton 1959
  • Spatial and temporal movements of a population of the painted turtle, Chrysemys picta marginata (Agassiz). Ecol. Monogr. 29: 113-140.
  • Shaffer 1997
  • Tests of turtle phylogeny: molecular, morphological and paleontological approaches. Syst. Biol. 46: 235-268.
  • Shaffer, Ernst 1979
  • The giant land tortoise of Aldabra, Geochelone gigantea. Bull. Maryland Herpetol. Soc. 15: 46-55.
  • Shaver 1992
  • Lepidochelys kempii (Kemp's ridley sea turtle). Reproduction. Herpetol. Rev. 23: 59.
  • 1794
  • Zoology of New Holland. Vol. I. Davis, London. 33 pp.
  • 1802
  • General zoology, or systematic zoology. G. Kearsley, London. 312 pp.
  • , 1793
  • Zoology and Botany of New Holland and the Isles Adjacent. London
  • Shealy 1976
  • The natural history of the Alabama map turtle, Graptemys pulchra Baur, in Alabama. Bull. Florida St. Mus. Biol. Sci. 21: 47-111.
  • Shipman 1993
  • Natural history of the alligator snapping turtle (Macroclemys temminckii) in Kansas. Kansas Herpetol. Soc. Newsl. 93: 14-17.
  • Shively, 1985
  • Factors limiting the upstream distribution of the Sabine map turtle. Amer. Midl. Nat. 114: 292-303.
  • Shoop 1967
  • Graptemys nigrinoda in Mississippi. Herpetologica 23: 56.
  • Siaca, Fritts 1995
  • Patrines de cercimiento de las tortugas gigantes (Geochelone ephippium) de la Isla de Pinzón, Galagagos. Rev. Acad. Colomb. Cienc. 19: 741-744.
  • Siaca-Colon 1994
  • Patterns of growth and maturation in giant tortoises from Pinzón and Española islands, Galapagos, Ecuador. M. S. thesis, George Mason Univ., Fairfax.
  • Siebenrock 1907
  • Über einige, zum Teil seltene Schildkröten aus Südchina. Sitz. Acad. Wiss. Wien. Math.-natur. Kl. 116: 1741-1776.
  • Siebenrock 1903b
  • Über zwei seltene und eine neue Schildkröte des Berliner Museum. Sitz. Akad. Wiss. Wien. Mathnatur. Kl. 112: 439-445.
  • Siebenrock 1901
  • Beschreibung einer neuen Schildkrötengattung aus der Familie Chelydidae von Australien: Pseudemydura. Anz. Akad. Wiss. Wien. 22: 248-250.
  • Siebenrock 1906b
  • Zur Kenntnis der Schildkrötenfauna der Insel Hainan. Zool. Anz. 30: 578-586.
  • Siebenrock 1914
  • Eine neue Chelodina- Art aus Westaustralien. Anz. Akad. Wiss. Wien 17: 386-387.
  • Siebenrock 1906c
  • Eine neue Cinosternum- Art aus Florida. Zool. Anz. 30: 727-728.
  • Siebenrock 1903a
  • Schildkröten des ostlichen Hinterindien. Sitz. Acad. Wiss. Wien. Math.-natur. Kl. 112: 333-353.
  • Siebenrock 1906a
  • Schildkröten von Ostafrika and Madagaskar. In: A. Voeltzkow, Reise in Ostafrika in den Jahren 1903-1905, 2: 1-40. Stuttgart.
  • Siebenrock 1909
  • Synopsis der rezenten Schildkröten mit Berücksichtigung der in historischer Zeit ausgestorbenen Arten. Zool. Jahrb., suppl. 10: 427-618.
  • 1985
  • Notes on tracking and terrestrial activities of the freshwater turtle Kachuga tentoria in River Mahamadi, Orissa. J. Bombay Nat. Hist. Soc. 82: 414 417.
  • 1970
  • Chromosome numbers and sex chromosomes in a few Indian species of amphibia and reptiles. Mammal Chromosome Newsl. 11: 91-94.
  • Sites 1984
  • Biochemical characters and the reconstruction of turtle phylogenies: Relationships among batagurine genera. Syst. Zool. 33: 137-158.
  • 1996
  • Stomach contents of commercially harvested adult alligator snapping turtles, Macroclemys temminckii. Chelonian Conserv. Biol. 2: 96-99.
  • , Lovich 1995
  • Exploitation of the alligator snapping turtle, Macroclemys temminckii, in Louisiana: a case study. Chelonian Conserv. Biol. 1: 221-222.
  • 1838-1849
  • Illustrations of the zoology of South Africa, consisting chiefly of Figures and Descriptions of the Objects of Natural History collected during an Expedition into the Interior of South Africa, in the years 1834, 1835 and 1836. Vol. 3. Reptilia. Smith, Elder & Co., London. 28 pp.
  • , Rhodin 1986
  • Authorship of the scientific name of the leatherback sea turtle. J. Herpetol. 20(3): 450-451.
  • , Glass 1947
  • A new musk turtle from southeastern United States. J. Washington Acad. Sci. 37: 22-24.
  • , 1950
  • Type localities of Mexican reptiles and amphibians. Univ. Kansas Sci. Bull. 33: 313-380.
  • , Ramsey 1952
  • A new turtle from Texas. Wasmann J. Biol. 10: 45-54.
  • 1980
  • Sternotherus Gray, 1825, correct spelling; and Pelusios Wagler, 1830, proposed conservation (Reptilia, Testudines). Z. N. (S.) 2278. Bull. Zool. Nomencl. 37: 124-128.
  • 1979
  • Synopsis of the herpetofauna of Mexico. Vol. 6. Guide to Mexican turtles. John Johnson, North Bennington, Vermont. 1044 pp.
  • 1992
  • Nesting ecology, female home range and activity patterns, and hatchling survivorship in the gopher tortoise (Gopherus polyphemus). Master's thesis, Univ. Florida, Gainsville.
  • 1996
  • The status and ecology of the ploughshare tortoise Geochelone yniphora in Madagascar. In: B. Devaux (ed.), Proceedings—International Congress of Chelonian Conservation, p. 136. Gonfaron, France: Editions SOPTOM.
  • 1931
  • The fauna of British India, including Ceylon and Burma. Reptilia and Amphibia, vol. 1, Loricata and Testudines. Taylor and Francis, London. 185 pp.
  • 1916
  • A list of the crocodiles, tortoises, turtles and lizards at present known to inhabit Siam. J. Natur. Hist. Soc. Siam 2: 48-57.
  • 1923
  • On a collection of reptiles and batrachians from the Island of Hainan. J. Natur. Hist. Soc. Siam 6: 195-212.
  • 1977
  • Management implications of genetic variability in loggerhead and green sea turtles. 13th Congr. Game Biol., p. 302-312.
  • 1961
  • The amphibians and reptiles of Illinois. Illinois Natur. Hist. Surv. Bull. (28): 1-298.
  • 1951
  • A new frog and a new turtle from the western Illinois sand prairies. Bull. Chicago Acad. Sci. 9: 189-199.
  • Snell 1995
  • Geographical characteristics of the Galápagos Islands. Noticias de Galápagos 55: 18-24.
  • 1964
  • The giant tortoises of the Galápagos Islands. Their present status and future chances. Oryx 7: 277-290.
  • 1996
  • Conservation and Management of Podocnemis in the Guapore River, Rondonia, Brazil. In: B. Devaux (ed.), Proceedings—International Congress of Chelonian Conservation, pp. 287-288. Gonfaron, France: Editions SOPTOM.
  • Soini 1994
  • Ecologia reproductiva de la taricaya (Podocnemis unifilis) en el Rio Pacaya, Peru. Folia Amazonica 6: 105-124.
  • Soini 1996
  • Reproducion, abundancia y situacion de quelonios acuaticos en la Reserva Nacional Pacaya-Samiria, Peru. Folia Amazonica 8: 147-164.
  • 1984
  • A new species of the turtle genus Cuora (Testudoformes: Testudinidae). Acta Zootaxonomica Sinica 9: 330-332.
  • Sonnini, 1802
  • Histoire naturelle des reptiles avec figures dessinées d'apres nature. I. Deterville, Paris. 280 pp.
  • 1995
  • Hydromedusa maximiliani (Maximilian's snake-necked turtle). Juvenile morphology. Herpetol. Rev. 26(1): 34.
  • , 1995
  • Observations on feeding habits of Hydromedusa maximiliani (Testudines: Chelidae) in southeastern Brazil. Chelonian Conserv. Biol. 1: 320-322.
  • , 1994
  • Incubation temperature influences sex and hatchling size in the neotropical turtle Podocnemis unifilis. J. Herpetol. 28(4): 453-464.
  • Spence 1979
  • The western Australian swamp tortoise Pseudemydura umbrina. Int. Zool. Yearb. 19: 58-60.
  • 1824
  • Animalia nova, species novae Testudinum et ranarum quas in itinere per Brasiliam annis 1817-1820 jussu et auspiciis Maximiliana Josephi 2. Leipzig. 24 pp.
  • Spotila 1996
  • Worldwide population decline of Dermochelys coriacea: are leatherback turtles going extinct? Chelonian Conserv. Boil. 2(2): 209-222.
  • Sprando, 1988
  • Spermiogenesis in the red-ear turtle (Pseudemys scripta) and the domestic fowl (Gallus domesticus): a study of cytoplasmic events including cell volume changes and cytoplasmic elimination. J. Morphol. 198: 95-118.
  • Srinarumol 1995
  • Population Biology of the Malayan Snail-eating Turtle Malayemys subtrijuga (Schlegel & Müller, 1844). Unpublished M. Sc. thesis, Chulalongkorn University, Bangkok. 126 pp.
  • Stebbins 1985
  • A field guide to western reptiles and amphibians. 2nd ed. Houghton Mifflin Co., Boston. 336 pp.
  • Stejneger 1925a
  • Chinese amphibians and reptiles in the United States National Museum. Proc. U. S. Natl. Mus. 66: 1115.
  • Stejneger 1918
  • Description of a new snapping turtle and a new lizard from Florida. Proc. Biol. Soc. Washington 31: 89-92.
  • Stejneger 1909
  • Generic names of some chelyid turtles. Proc. Biol. Soc. Washington 22: 125-128.
  • Stejneger 1925b
  • New species and subspecies of American turtles. J. Washington Acad. Sci. 15: 462-463.
  • Stejneger 1944
  • Notes on the American soft-shell turtles with special reference to Amyda agassizii. Bull. Mus. Comp. Zool. Harvard 94: 1-75.
  • Stejneger 1902
  • Some generic names of turtles. Proc. Biol. Soc. Washington 15: 235-238.
  • Stejneger, 1939
  • A check list of North American amphibians and reptiles. 4th ed. Harvard Univ. Press, Cambridge, Massachusetts.
  • 1995
  • The Western Swamp Tortoise returns to Twin Swamps Nature Reserve, W.A. On the Brink! 6: 9.
  • Sternberg 1981
  • The worldwide distribution of sea turtle nesting beaches. Sea Turtle Rescue Fund, Center Environ. Ed., Washington, D.C.
  • Stickel 1950
  • Population and home range relationships of the box turtle, Terrapene c. carolina (Linnaeus). Ecol. Monogr. 20: 351-378.
  • Stimson 1986
  • On the correct zoological name of the Australasian turtle genus Emydura Bonaparte. J. Herpetol. 20: 279-280.
  • 1972
  • Karyological relationships in turtles (Reptilia: Chelonia). Canadian J. Genet. Cytol. 14: 859-868.
  • Stoddart 1982
  • Tortoises and tourists in the western Indian Ocean: The Curieuse Experiment. Biol. Conserv. 24: 67-80.
  • Stoneburner 1980
  • Body depth: an indicator of morphological variation among nesting groups of adult loggerhead sea turtles (Caretta caretta). J. Herpetol. 14: 205-206.
  • 1930
  • Notes on the range and life-history of the Pacific fresh-water turtle, Clemmys marmorata. Univ. California Publ. Zool. 32: 429-441.
  • Stang 1983
  • Spatial and temporal activity patterns in two terrestrial turtles. J. Herpetol. 17: 43-47.
  • Strauch 1890
  • Bemerkungen über die Schildkrötensammlung im Zoologischen Museum. Mem. Acad. St. Petersburg (7)38: 1-127.
  • Strecker 1927
  • Observations on the food habitats of Texas amphibians and reptiles. Copeia
  • Street 1979
  • The reptiles of northern and central Europe. B. T. Batsford Ltd., London. 268 pp.
  • , Painter 1997
  • Trachemys gaigeae (Big Bend slider). Reproduction. Herpetol. Rev. 28: 149-150.
  • 1993
  • Trachemys gaigeae (Big Bend slider). Maximum size. Herpetol. Rev. 24: 32-33.
  • , 1987
  • The eastern box turtle, Terrapene c. carolina (Testudines: Emydidae), in North Carolina. Brimleyana 13: 123-131.
  • 1989a
  • Testudo hermanni. Hermann's tortoise. In: I. R. Swingland, and M. W. Klemens (eds.). The Conservation Biology of Tortoises, pp. 34-36. Occ. Pap. IUCN/SSC 5, Tortoise and Freshwater Specialists Group. IUCN, Gland, Switzerland.
  • 1989b
  • Testudo marginata. Marginated tortoise. In: I. R. Swingland, and M. W. Klemens (eds.). The Conservation Biology of Tortoises, pp. 34-36. Occ. Pap. IUCN/SSC 5, Tortoise and Freshwater Specialists Group. IUCN, Gland, Switzerland.
  • Surface 1908
  • First report on the economic features of the turtles of Pennsylvania. Zool. Bull. Div. Zool. Pennsylvania Dept. Agric. 6: 105-196.
  • Swindells, 1964
  • Ability of Testudo elongata to withstand excessive heat. British J. Herpetol. 3: 166.
  • Swingland 1989a
  • Geochelone elephantopus. Galapagos giant tortoise. In: I. R. Swingland, and M. W. Klemens (eds.). The Conservation Biology of Tortoises, pp. 24-28. Occ. Pap. IUCN/SSC 5, Tortoise and Freshwater Specialists Group. IUCN, Gland, Switzerland.
  • Swingland 1989b
  • Geochelone gigantea. Aldabra giant tortoise. In: I. R. Swingland, and M. W. Klemens (eds.). The Conservation Biology of Tortoises, pp. 105-110. Occ. Pap. IUCN/SSC 5, Tortoise and Freshwater Specialists Group. IUCN, Gland, Switzerland.
  • Swingland, 1978
  • The natural regulation of giant tortoise populations on Aldabra Atoll. Reproduction. J. Zool. (London) 186: 285-309.
  • Swingland, 1979
  • The natural regulation of giant tortoise populations on Aldabra Atoll: recruitment. Phil. Trans. Royal Soc. London, B 286: 177-188.
  • Swingland, Klemens 1989
  • The conservation biology of tortoises. Occ. Pap. IUCN Species Surv. Comm. 5: 1-202.