Literature
  • , 1994
  • Ranging, breeding behaviour and food of the Asian brown tortoise Manouria emys in Borneo. Malayan Nature J. 48: 125-131.
  • 1980b
  • Rare Brazilian sideneck turtle. Oryx 15: 473-475.
  • 1997
  • Re-evaluation of Emydura lavarackorum: identification of a living fossil. Mem. Queensland Mus. 42(1): 327-335.
  • Cayot, Morillo 1997
  • Rearing and reintroduction of Galápagos tortoises: Geochelone elephantopus hoodensis, a case study. In: J. van Abbema (ed.), Proceedings: Conservation, Restoration, and Management of tortoises and turtles—An International Conference, pp 178-183. New York Turtle & Tortoise Soc., Purchase, New York.
  • Limpus 1988
  • Reassessment of the taxonomic status of the sea turtle genus Natator McCulloch, 1908, with a redescription of the genus and species. Trans. Royal Soc. South Australia 112: 1-9.
  • Cayot, 1994
  • Recent increase in killing of giant tortoises on Isabela Island. Noticias de Galápagos 54: 2-7.
  • 1981
  • Recently extinct reptile faunas from the southwest Indian Ocean. Rep. British Museum (Nat. Hist.) 1978-1980: 52-56.
  • 1980
  • Recently extinct reptile populations from Mauritius and Reunion, Indian Ocean. J. Zool. (London) 191: 33-47.
  • 1825
  • Recherches sur les ossemens fossiles de quadropedes, 3rd. ed. Paris.
  • Dobie, Bagley 1988
  • Recovery plan for the red-bellied turtle (Pseudemys alabamensis). U.S. Fish Wildl. Serv. Tech. Rev. Draft, 20 pp.
  • Fretey, Bour 1980
  • Redécouverte du type de Dermochelys coriacea (Vandelli) (Testudinata, Dermochelyidae). Boll. Zool. 47: 192-205.
  • 1995
  • Redescription and neotype designation of Pelochelys bibroni from southern New Guinea (Testudines: Trionychidae). Chelonian Conserv. Biol. 1: 301-310.
  • , 1974
  • Redescription of Podocnemis erythrocephala (Spix, 1824), an Amazonian pelomedusid turtle. Pap. Avul. Zool., S. Paulo 28: 147-162.
  • Iverson, McCord 1997a
  • Redescription of the Arakan forest turtle Geoemyda depressa Anderson 1875 (Testudines: Bataguridae). Chelonian Conserv. Biol. 2(3): 384-389.
  • Moll 1986
  • Redescription of the cane turtle with notes on its natural history and classification. J. Bombay Natur. Hist. Soc., suppl. 83: 113-126.
  • Ernst 1988a
  • Redescriptions of two Chinese Cuora (Testudines: Emydidae). Proc. Biol. Soc. Washington 101: 155-161.
  • 1983
  • Rediscovery of a rare Indian turtle. Oryx 17: 130-134.
  • 1997b
  • Rediscovery of Seychelles giants tortoises confirmed in March 1997. Seychelles Giant Tortoise News, NPTS 1: 1-2.
  • Vijaya 1982a
  • Rediscovery of the forest cane turtle (Heosemys silvatica) of Kerala. Hamadryad 7(3): 2-3.
  • Van den Berg, Baard 1994
  • Regional variation in morphometric characters in the angulate tortoise, Chersina angulata. J. Herpetol. Assoc. Afr. 43: 28-32.
  • , Licht 1983
  • Regulation of seasonal gonadal cycles by temperature in the painted turtle, Chrysemys picta. Copeia
  • 1774
  • Reise durch Russland zur Untersuchung der drey Natur-Reich. Vol. 3. St. Petersburg, Russia.
  • Wied-Neuweid 1839
  • Reise in das innere Nord-America in den Jahren 1832 bis 1834. J. Hoelscher, Coblenz. 653 pp.
  • Schomburgk 1848
  • Reisen in British Guiana in... 1840-1844. I. Fauna. Amphibien, pp. 645-661. Leipzig.
  • Niekisch 1997
  • Rekordgrößen bei Weichschildkröten im Stadtzentrum von Hanoi, Vietnam. Herpetofauna 19 (107): 28-34.
  • Lovich 1991a
  • Relationships among turtles of the genus Clemmys as suggested by plastron scute morphology. Zool. Scripta 20: 425-429.
  • Ernst 1980
  • Relationships between North American turtles of the Chrysemys complex as indicated by their endoparasitic helminths. Proc. Biol. Soc. Washington 93: 339-345.
  • 1984
  • Relationships of chrysemyd turtles of North America (Testudines: Emydidae). Spl. Publ. Mus. Texas Tech. Univ. (21): 1-50.
  • Burbidge 1974
  • Relationships within the Chelidae (Testudines: Pleurodira) of Australia and New Guinea. Copeia
  • , Shastri 1914
  • Relics of the worship of mud-turtles (Trionychidae) in India and Burma. J. Proc. Asiatic Soc. Bengal n.s.
  • Legler, 1961
  • Remarks on a collection of Bolson tortoises, Gopherus flavomarginatus. Herpetologica 17: 26-37.
  • 1953
  • Remarks on the Indo-chinese turtle Annamemys merkleni. Ann. Mag. Natur. Hist. (London) (12)6: 468-472.
  • Legler 1960c
  • Remarks on the natural history of the Big Bend slider, Pseudemys scripta gaigeae Hartweg. Herpetologica 16: 139-140.
  • 1986
  • Report of a new fossil soft-shelled turtle, Trionyx liupani from Taiwan, with comparative study to the living species, Trionyx sinensis (Wiegmann). J. Taiwan Mus. Taipei 39: 21-41.
  • 1903
  • Report on the batrachians and reptiles. In: N. Annandale and H. C. Robinson (eds.), Fasciculi Malayensis, Anthropological and Zoological Results of an Expedition to Perak and the Siamese Malay States, 1901-1902, Zoology, pp. 131-170. Univ. Press, Liverpool.
  • 1863
  • Report on the collections presented by Capt. Berdmore and Mr. Theobald. J. Asiatic Soc. Bengal, Calcutta 32: 80-86.
  • 1958
  • Report on the investigation of reptiles of Hainan Island. Chinese J. Zool. 2: 234-239.
  • Márquez 1992
  • Reprodución de tortugos e iguanas terrestres en cautiverio en las Islas Galápagos. Acta Zool. Lilloana 41: 295-308.
  • Soini 1996
  • Reproducion, abundancia y situacion de quelonios acuaticos en la Reserva Nacional Pacaya-Samiria, Peru. Folia Amazonica 8: 147-164.
  • Dobie 1971
  • Reproduction and growth in the alligator snapping turtle, Macroclemys temminckii (Troost). Copeia
  • Plummer 1977b
  • Reproduction and growth in the turtle Trionyx muticus. Copeia 1977: 440-447.
  • Iverson 1979d
  • Reproduction and growth of the mud turtle, Kinosternon subrubrum (Reptilia, Testudines, Kinosternidae), in Arkansas. J. Herpetol. 13: 105-111.
  • 1993
  • Reproduction and management of the Southeast Asian spiny turtle (Heosemys spinosa) in captivity. Herpetol. Nat. Hist. 1: 97-100.
  • Congdon 1987
  • Reproduction and nesting ecology of snapping turtles (Chelydra serpentina) in southeastern Michigan. Herpetologica 43: 39-54.
  • Hulse 1982
  • Reproduction and population structure in the turtle, Kinosternon sonoriense. Southwest. Natur. 27: 447-456.
  • 1984
  • Reproduction and survival of the desert tortoise (Scaptochelys agassizii) in Ivanpah Valley, California. Copeia
  • Parmenter 1985
  • Reproduction and survivorship of Chelodina longicollis (Testudinata: Chelidae). In: G. Grigg, R. Shine, and H. Ehmann (eds.), Biology of Australasian Frogs and Reptiles, pp. 53-61. Royal Society of New South Wales, Sydney, Australia.
  • Fretey 1976
  • Reproduction de Kinosternon scorpioides scorpioides (Linné) (Testudinata, Kinosternidae). Bull. Soc. Zool. France 101: 732-733.
  • Pauler 1988
  • Reproduction en captivité de Malacochersus tornieri (Siebenrock, 1903). Mesogée 48: 71-73.
  • Ernst 1970b
  • Reproduction in Clemmys guttata. Herpetologica 26: 228-232.
  • 1996
  • Reproduction in a population of the desert tortoise, Gopherus agassizii, in the Sonoran Desert. Herpetol. Nat. Hist. 4: 83-88.
  • Iverson 1977d
  • Reproduction in freshwater and terrestrial turtles in North Florida. Herpetologica 33: 205-212.
  • Iverson 1985c
  • Reproduction in the Florida softshell turtle, Trionyx ferox. Florida Scientist 48: 41-44.
  • Darlington, 1990
  • Reproduction in the pancake tortoise, Malacochersus tornieri, in captive collections. Herpetol. Rev. 21(1): 16-18.
  • , 1990
  • Reproduction in the slider and other species of turtles. In: J. W. Gibbons (ed.), Life history and ecology of the slider turtle, pp. 124-134. Smithsonian Inst. Press, Washington, D. C.
  • Nieuwolt-Dacanay 1997
  • Reproduction in the western box turtle, Terrapene ornata luteola. Copeia
  • 1984
  • Reproduction of Kinosternon flavescens (Kinosternidae) in Iowa. Southwest. Natur. 29: 349-351.
  • Landers 1980
  • Reproduction of gopher tortoises (Gopherus polyphemus) in southwestern Georgia. Herpetologica 36: 353-361.
  • Diemer, 1994
  • Reproduction of gopher tortoises in north-central Florida. In: R. B. Bury and D. J. Germano (eds.), Biology of North American tortoises, pp. 129-137. U. S. Fish Wildl. Serv. Res. Rep. 13.
  • Georges 1983
  • Reproduction of the Australian freshwater turtle Emydura krefftii (Chelonia: Chelidae). J. Zool. London 201: 331-350.
  • 1994
  • Reproduction of the Cabeçudo, Peltocephalus dumerilianus, in the Biological Reserve of Rio Trombetas, Pará, Brazil. Chelonian Conserv. Biol. 1(2): 145-148.
  • , Dunham 1972
  • Reproduction of the yellow mud turtle (Kinosternon flavescens flavescens) in New Mexico. Herpetologica 28: 130-137.
  • Lapid, Robinzon 1996
  • Reproduction, incubation and breeding in captive Testudo graeca. In: B. Devaux (ed.), Proceedings—International Congress of Chelonian Conservation, pp. 198-200. Gonfaron, France: Editions SOPTOM.
  • 1997
  • Reproductive and developmental synchrony in female Lepidochelys olivacea. J. Herpetol. 31: 17-22.
  • Polisar 1996
  • Reproductive biology of a flood-season nesting freshwater turtle of the northern neotropics: Dermatemys mawii in Belize. Chelonian Conserv. Biol. 2(1): 13-25.
  • 1980
  • Reproductive biology of captive green sea turtles Chelonia mydas. Amer. Zool. 20: 499-505.
  • Flores-Villela, Zug 1995
  • Reproductive biology of the Chopontil, Claudius angustatus (Testudines: Kinosternidae), in southern Veracruz, México. Chelonian Conserv. Biol. 1(3): 181-186.
  • Bjorndal 1985
  • Reproductive biology of the hawksbill Eretmochelys imbricata at Tortuguero, Costa Rica with notes on the ecology of the species in the Caribbean. Biol. Conserv. 34: 353-388.
  • , Sarker 1995a
  • Reproductive biology of the Indian roofed turtle, Kachuga tecta, in Bangladesh. Chelonian Conserv. Biol. 1(3): 226-227.
  • 1983
  • Reproductive characteristics and ecology of the mud turtle, Kinosternon subrubrum (Lacepède). Herpetologica 39: 254-271.
  • Iverson 1978a
  • Reproductive cycle of female loggerhead musk turtles (Sternotherus minor minor) in Florida. Herpetologica 34: 33-39.
  • Moll 1979
  • Reproductive cycles and adaptations. In: M. Harless and H. Morlock (eds.), Turtles: Perspectives and Research, pp. 305-331. Wiley-Interscience, New York.
  • Medem 1983a
  • Reproductive data on Platemys platycephala (Testudines: Chelidae) in Colombia. In: A. G. J. Rhodin and K. Miyata (eds.), Advances in Herpetology and Evolutionary Biology, pp. 429-434. Mus. Comp. Zool. Harvard, Cambridge, Mass.
  • Rhodin, McCord 1990
  • Reproductive data on the chelid turtle Chelodina siebenrocki from New Guinea. Herpetol. Rev. 21(3): 51-52.
  • Vasudevan 1996
  • Reproductive ecology of Aspideretes gangeticus (Cuvier) in North India. In: B. Devaux (ed.), Proceedings—International Congress of Chelonian Conservation, pp. 21-28. Gonfaron, France: Editions SOPTOM.
  • , 1996
  • Reproductive ecology of the Florida green turtle: clutch frequency. J. Herpetol. 30: 407-410.
  • Christens, Bider 1986
  • Reproductive ecology of the painted turtle (Chrysemys picta marginata) in southwestern Quebec. Can. J. Zool. 64: 914-920.
  • Iverson, 1993
  • Reproductive ecology of the painted turtle (Chrysemys picta) in the Nebraska Sandhills and across its range. Copeia
  • Congdon, Tinkle 1982
  • Reproductive energetics of the painted turtle (Chrysemys picta). Herpetologica 38: 228-237.
  • Alho, Padua 1982
  • Reproductive parameters and nesting behavior of the Amazon turtle Podocnemis expansa (Testudinata: Pelomedusidae) in Brazil. Canadian J. Zool. 60: 97-103.
  • 1982
  • Reproductive patterns in freshwater turtles. Herpetologica 38: 222-227.
  • Rostal 1996
  • Reproductive physiology of nesting leatherback turtles (Dermochelys coriacea) at Las Baulas National Park, Costa Rica. Chelonian Conserv. Biol. 2: 230-236.
  • 1988
  • Reproductive strategies of sympatric freshwater emydid turtles in northern peninsular Florida. Bull. Florida St. Mus. Biol. Sci. 33: 113-158.
  • Bourn 1977
  • Reproductive study of giant tortoises on Aldabra. J. Zool. (London) 182: 27-38.
  • Vanzolini 1980
  • Repteis das caatingas. Acad. Brasil. Cienc., Rio de Janeiro. 161 pp.
  • 1992
  • Reptiles & Amphibians of Australia. Cornell Univ. Press, Ithaca New York. 775 pp.
  • 1975
  • Reptiles and Amphibians of Australia. A. H. and A. W. Reed, Sydney. 584 pp.
  • Cei 1993
  • Reptiles del noroeste, nordeste y este de la Argentina. Herpetofauna de las delvas subtropicales, Puna y Pampas. Museo Regionale di Scienze Naturali Torino, Monografia XIV. 949 pp.
  • Bour, Moutou 1982
  • Reptiles et Amphibians de L'Isle de la Réunion. Info-Nature (Réunion) 19: 19-156.
  • Van Lidth de Jeude 1895
  • Reptiles from Timor and the neighboring islands. Leyden Mus. 16: 119-127.
  • Worrell 1964
  • Reptiles of Australia. Angus and Robertson Ltd., Sydney. 207 pp.
  • 1864
  • Reptiles of British India. Robert Hardwicks, London. 452 pp.
  • 1965
  • Reptiles of the Galápagos. Pacific Discovery 18(5): 28-36.
  • Cansdale 1955
  • Reptiles of West Africa. Penguin Books, London. 104 pp.
  • 1885
  • Reptilia and Batrachia, xx + 326 pp. In: F. D. Godman and O. Salvin, Biologia Centrali-Americana. Dulau and Co., London.
  • , 1835
  • Reptilia. Chelonii. In: Ph. Fr. de Siebold, 1833-1838, Fauna Japonica. Leyden. 144 pp.
  • 1997
  • Research on a new species of Pelodiscus, Trionychidae in China. Zool. Res. 18(1): 13-17.
  • , 1986
  • Research, husbandry, and propagation of the bog turtle Clemmys muhlenbergii (Schoepff) at the Atlanta Zoo. In: S. McKeown et al., (eds.), Proceedings of the 9th International Herpetological Symposium on Captive Propagation and Husbandry, pp. 125-135. Univ. San Diego, California.
  • Lindholm 1929
  • Revidiertes Verzeichnis der Gattungen der rezenten Schildkröten nebst Notizen zur Nomenklatur einiger Arten. Zool. Anz. (Leipzig) 81: 275-295.
  • Lovich, 1992
  • Review of the Graptemys pulchra group (Reptilia: Testudines: Emydidae), with descriptions of two new species. Ann. Carnegie Mus. 61: 293-315.
  • 1997
  • Revision der südostasiatischen Dornschildkröten-Gattung Cyclemys Bell, 1834, mit Beschreibung einer neuen Art. Salamandra 33(3): 183-212.
  • Loveridge 1941
  • Revision of the African terrapin of the family Pelomedusidae. Bull. Mus. Comp. Zool. Harvard 88: 467-524.
  • Loveridge, 1957
  • Revision of the African tortoises and turtles of the suborder Cryptodira. Bull. Mus. Comp. Zool. Harvard 115: 163-557.
  • 1864a
  • Revision of the species of Trionychidae found in Asia and Africa, with the descriptions of some new species. Proc. Zool. Soc. London 1864: 76-98.
  • Seidel 1988
  • Revision of the West Indian emydid turtles (Testudines). Amer. Mus. Novitates (2918): 1-41.