- Ma, Zong 1986
- A study on the species and geographical distribution of the Testudoformes of China. Invest. Stud. Natl. Mus. Hist. Nat. Shanghai 6: 149-152.
- MacCulloch 1981
- Variation in the shell of Chrysemys picta belli from southern Saskatchewan. J. Herpetol. 15: 181-185.
- MacCulloch, Secoy 1983
- Demography, growth, and food of western painted turtles, Chrysemys picta bellii (Gray), from southern Saskatchewan. Can. J. Zool. 61: 1499-1509.
- , Mushinsky 1988
- Foraging ecology of the gopher tortoise, Gopherus polyphemus, in a sandhill habitat. Herpetologica 44: 345-353.
- MacFarland, 1974
- Cleaning symbiosis involving Galápagos tortoises and two species of Darwin's finches. Zeit. Tierpsychol. 34: 464-483.
- MacFarland 1974a
- The Galápagos giant tortoises (Geochelone elephantopus). Part I: Status of the surviving populations. Biol. Conserv. 6: 118-133.
- MacFarland 1974b
- The Galápagos giant tortoises (Geochelone elephantopus). Part II: Conservation methods. Biol. Conserv. 6: 198-212.
- Mahmoud 1967
- Courtship behavior and sexual maturity in four species of kinosternid turtles. Copeia
- Mahmoud 1968
- Feeding behavior in kinosternid turtles. Herpetologica 24: 300-305.
- Mahmoud 1969
- Comparative ecology of the kinosternid turtles of Oklahoma. Southwest. Natur. 14: 31-66.
- Mahmoud, Klicka 1972
- Seasonal gonadal changes in kinosternid turtles. J. Herpetol. 6: 183-189.
- Mahmoud, Cyrus 1992
- The testicular cycle of the common snapping turtle, Chelydra serpentina, in Wisconsin. Herpetologica 48: 193-201.
- , Grigg 1997
- Basking is not of thermoregulatory significance in the "basking" freshwater turtle Emydura signata. Copeia
- Mao 1971
- Turtles of Taiwan. Comm. Press, Ltd. Taipei. 128 pp.
- Marcovaldi, 1996
- A six season study of marine turtle nesting at Praia do Forte, Bahia, Brazil, with implications for conservation and management. Chelonian Conserv. Biol. 2: 55-59.
- , 1988
- Five Kingdoms. W. H. Freeman and Company, New York. 376 pp.
- Marlow 1989
- Coevolution of a Galapagos tortoise-Psidium interaction. Amer. Zool. 29(4): 145A.
- Marlow 1986
- Shell shape and feeding in Galápagos giant tortoises. Amer. Zool. 26(4): 65A.
- Marlow, 1981
- Biochemical relationships of the Galápagos giant tortoises (Geochelone elephantopus). J. Zool. (London) 195: 413-422.
- Márquez 1990
- FAO species catalogue. Vol. 11: Sea turtles of the world. An annotated and illustrated catalogue of sea turtle species known to date. FAO Fisheries Synopsis. No 125, Vol. 11. Rome, FAO, 81 pp.
- Márquez 1991
- A 25-year management program pays off: repatriated tortoises on Española reproduce. Noticias de Galápagos 50: 17-18.
- Márquez 1992
- Reprodución de tortugos e iguanas terrestres en cautiverio en las Islas Galápagos. Acta Zool. Lilloana 41: 295-308.
- Márquez 1988
- Comportamiento de Apareamiento al Azar en tortugas gigantes. Juveniles en cautiverio el las Islas Galápagos. Rept. Charles Darwin Res. St. Lib.
- Maurer 1995
- Chrysemys picta belli (western painted turtle). Feeding behavior. Herpetol. Rev. 26: 34.
- McCord, Iverson 1991
- A new box turtle of the genus Cuora (Testudines: Emydidae) with taxonomic notes and a key to the species. Herpetologica 47: 407-420.
- McCord, Iverson 1994
- A new species of Ocadia (Testudines: Batagurinae) from southwestern China. Proc. Biol. Soc. Washington 107: 52-59.
- McCord, Iverson 1992
- A new species of Ocadia (Testudines:Bataguridae) from Hainan Island, China. Proc. Biol. Soc. Washington 105: 13-18.
- McCord 1995
- A new batagurid turtle from northern Sulawesi, Indonesia. Chelonian Conserv. Biol. 1: 311-316.
- , 1992
- Graptemys kohnii in the Pearl River: An alternative explanation. Herpetol. Rev. 23: 28.
- , 1987
- Graptemys flavimaculata. Catalog. Amer. Amphib. Rept. 403: 1-2.
- , 1985
- Pseudemys alabamensis. Catalog. Amer. Amphib. Rept. 371: 1-2.
- , 1980
- Distribution and population status of the yellow-backed sawback Graptemys flavimaculata Cagle in Mississippi. Final Report. U.S. Fish Wildl. Serv. Contract No. 14-16-0004-79-038. 23 pp.
- McKeown, 1982
- Softshell turtles in Hawaii. J. Herpetol. 16: 107-111.
- McKeown 1991
- The management and breeding of the Asian forest tortoise (Manouria emys) in captivity. In: K. R. Beaman, F. Caporaso, S. McKeown, and M. D. Graff (eds.)., Proceedings of the First International Symposium on Turtles and Tortoises: Conservation and Captive Husbandry, pp. 136-159. Chapman Univ., Orange, California.
- McKeown 1982
- Observations on the reproductive biology of the land tortoises Geochelone emys and yniphora in the Honolulu Zool. Zoo Biology 1: 223-235.
- McKown 1972
- Phylogenetic relationships within the turtle genera Graptemys and Malaclemys. Ph.D. Diss., Univ. Texas, Austin, Texas.
- McMorris, 1975
- Notes on Geochelone impressa. Chelonia 2(2): 5-7.
- McMorris 1976
- The generic reassignment of Geomyda tcheponensis Bourret. Chelonia 3(2): 10-11.
- McPherson, 1981a
- Seasonal testicular cycle of the stinkpot turtle (Sternotherus odoratus) in central Alabama. Herpetologica 37: 33-40
- McPherson, 1981b
- The reproductive biology of female Sternotherus odoratus in an Alabama population. J. Herpetol. 15: 389-396.
- McPherson 1982
- Plasma steroids associated with seasonal reproductive changes in a multiclutched freshwater turtle, Sternotherus odoratus. Gen. Comp. Endocrinol. 48: 440-451.
- Meany 1979
- Nesting habits of the Alabama red-bellied turtle, Pseudemys alabamensis. J. Alabama Acad. Sci. 50: 113.
- Medem 1960
- Datos zoo-geográficos y ecologícos sobre los Crocodylia y Testudinata de los rios Amazonas, Putumayo y Caqueta. Caldasia 8: 341-351.
- Medem 1977
- Contribución al conocimiento sobre la taxonomía, distribución geográfica y ecología de la tortuga "Bache" (Chelydra serpentina acutirostris). Caldasia 12: 41-101.
- Medem 1966
- Contribuciónes al conocimiento sobre la ecología y distribución geográfica de Phrynops (Batrachemys) dahli; (Testudinata, Pleurodira, Chelidae). Caldasia 9: 467-489.
- Medem 1961
- Contribuciónes al conocimiento sobre la morfología, ecología y distribución geográfica de la tortuga Kinosternon dunni K. P. Schmidt. Novedades Colombianas 1: 446-476.
- Medem 1964
- Morphologie, Ökologie und Verbreitung der Schildkröte Podocnemis unifilis in Kolumbien. Senck. Biol. 45: 353-368.
- Medem 1962
- La distribución geográfica y ecología de los Crocodylia y Testudinata en el Departamento del Choco. Rev. Acad. Colomb. Cien. Ex. Fis. Nat. 11: 279-303.
- Medem 1975
- La reproducción de la "Icotea." Caldasia 11: 83-106.
- Medem 1983b
- La reproducción de la tortuga "cabezon" Peltocephalus tracaxa (Spix), 1824, (Testudines. Pelomedusidae), en Colombia. Lozania (Acta Zool. Columbiana) (41): 1-12.
- 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.
- , Inskeep 1981
- Aspects of the field biology of a population of Hermann's tortoise (Testudo hermanni) in southern Yugoslavia. British J. Herpetol. 6: 159-164.
- Mehrtens 1970
- Orlitia the Bornean terrapin. Int. Turtle Tort. Soc. J. 5(1): 6-7, 33.
- Mell 1922
- Beiträge zur Fauna sinica. I. Die Vertebraten Südchinas; Feldlisten und Feldnoten der Säuger, Vögel, Reptilien, Batrachier. Arch. Naturg. 88: 1-134.
- Mell 1929
- Beiträge zur Fauna sinica. IV. Gründzuge einer Ökologie der chinesischen Reptilien und einer herpetologischen Tiergeographie Chinas. Berlin. 282 pp.
- Mell 1938
- Beiträge zur Fauna sinica. VI. Aus der Biologie chinesischer Schildkröten. Arch. Naturg. n.s. 7: 390-475.
- , Geffen 1986
- The Egyptian tortoise in Israel. Israel Land and Nature 12: 153-157.
- Mendonca 1981
- Comparative growth rates of wild immature Chelonia mydas and Caretta caretta in Florida. J. Herpetol. 15: 447-451.
- Merkle 1975
- A taxonomic analysis of the Clemmys complex (Reptilia: Testudines) using starch gel electrophoresis. Herpetologica 31: 162-166.
- Merrem 1820
- Tentamen Systematic Amphiborum. Krieger, Marburg. 191 pp.
- Messinger, 1995
- Five year study of nesting of captive Terrapene carolina triunguis. Herpetol. Rev. 26: 193-195.
- Métrailler, Le Gratiet 1996
- Tortues contininentales de Guyane francaise. P.M.S., Bramois, Switzerland. 125 pp.
- Metzer, Marlow 1986
- The status of the Pinzón Island giant tortoise. Noticias de Galápagos
- , 1988
- Trionyx swinhoei (Gray) 1873, a valid species of living soft-shelled turtle (Family Trionychidae) from China. J. Herpetol. 22: 118-119.
- Mikan 1820
- Delectus florae et faunae brasiliensis. Antoinii Strauss, Wien. 47 pp.
- Milstead 1967
- Fossil box turtles (Terrapene) from central North America, and box turtles of eastern Mexico. Copeia
- Milstead 1969
- Studies on the evolution of box turtles (genus Terrapene). Bull. Florida St. Mus. Biol. Sci. 14: 1-108.
- Milstead, Tinkle 1967
- Terrapene of western Mexico, with comments on the species groups in the genus. Copeia
- Milstein 1968
- Hibernation of the Kalahari geometrid tortoise and other species in the Transvaal. Fauna & Flora 19: 42-44.
- Minarik 1985
- Lepidochelys olivacea (olive ridley sea turtle). Reproduction. Herpetol. Rev. 16: 82.
- Minton 1966
- A contribution to the herpetology of West Pakistan. Bull. Amer. Mus. Natur. Hist. 134: 27-184.
- Minton 1972
- Amphibians and reptiles of Indiana. Indiana Acad. Sci. Monogr. 3: 1-346.
- Minx 1992
- Variation in the phalangeal formulae in the turtle genus Terrapene. J. Herpetol. 26: 234-238.
- Minx 1996
- Phylogenetic relationships among box turtles, genus Terrapene. Herpetologica 52: 584-597.
- , Rhodin 1996
- Observations on the natural history and exploitation of the turtles of Nepal, with life history notes on Melanochelys trijuga. Chelonian Conserv. Biol. 2(1): 66-72.
- , Pague 1990
- Body size, reproductive variation, and growth in the slider turtle at the northeastern edge of its range. In: J. W. Gibbons (ed.), Life history and ecology of the slider turtle, pp. 146-151. Smithsonian Inst. Press, Washington, D. C.
- , 1996
- Clemmys insculpta (wood turtle). Reproductive behavior. Herpetol. Rev. 27: 197.
- , De Sá 1994
- Terrapene carolina carolina (eastern box turtle). Reproduction. Herpetol. Rev. 25: 64.
- , 1974
- Redescription of Podocnemis erythrocephala (Spix, 1824), an Amazonian pelomedusid turtle. Pap. Avul. Zool., S. Paulo 28: 147-162.
- Mlynarski 1969
- Fossile Schildkröten. A. Ziemsen Verlag, Wittenberg Lutherstadt. 128 pp.
- Mojsisovics 1889
- Zoogeographische Notizen über Süd-Ungarn aus den Jahren 1886-1888. Zugleich III. Nachtrag zur "Fauna von Béllye und Darda." Mitt. Naturwiss. Ver. Steiermark, Graz 25(1888): 233-269.
- Moler, 1994
- Apalone ferox (Florida softshell turtle). Diet. Herpetol. Rev. 25: 23.
- Moll 1989
- Food and feeding behavior of the turtle, Dermatemys mawei, in Belize. J. Herpetol. 23(4): 445-447.
- Moll, D. 1986
- The distribution, status, and level of exploitation of the freshwater turtle Dermatemys mawei in Belize, Central America. Biol. Conserv. 35: 87-96.
- Moll 1994
- The ecology of sea beach nesting in slider turtles (Trachemys scripta venusta) from Carribean Costa Rica. Chelon. Conserv. Biol. 1(2): 107-116.
- Moll 1990
- The slider turtle in the neotropics: adaptation of a temperate species to a tropical environment. In: J. W. Gibbons (ed.), Life history and ecology of the slider turtle, pp. 152-161. Smithsonian Inst. Press, Washington, D. C.
- Moll, Klemens 1996
- Ecological characteristics of the pancake tortoise, Malacochersus tornieri, in Tanzania. Chelonian Conserv. Biol. 2(1): 26-35.
- Moll 1978
- Drumming along the Perak. Natur. Hist. 87: 36-43.
- Moll 1985
- Comment: Sexually dimorphic plastral kinesis—the forgotten papers. Herpetol. Rev. 16: 16.
- Moll 1973
- Latitudinal and intersubspecific variation in reproduction of the painted turtle, Chrysemys picta. Herpetologica 29: 307-318.
- Moll 1980
- Natural history of the river terrapin, Batagur baska (Gray) in Malaysia (Testudines: Emydida). Malaysian J. Sci. 6A: 23-62.
- Moll 1979
- Reproductive cycles and adaptations. In: M. Harless and H. Morlock (eds.), Turtles: Perspectives and Research, pp. 305-331. Wiley-Interscience, New York.
- Moll 1986
- Survey of the freshwater turtles of India. Part I: The genus Kachuga. J. Bombay Nat. Hist. Soc. 83: 538-552.
- Moll 1987
- Survey of the freshwater turtles of India. Part II: The genus Kachuga. J. Bombay Natur. Hist. Soc. 84: 7-25.
- Moll, Legler 1971
- The life history of a neotropical slider turtle, Pseudemys scripta (Schoepff), in Panama. Bull. Los Angeles Co. Mus. Natur. Hist. Sci. (11): 1-102.
- Moll, Vijaya 1986
- Distributional records for some Indian turtles. J. Bombay Natur. Hist. Soc. 83: 57-62.
- Moll 1986
- Redescription of the cane turtle with notes on its natural history and classification. J. Bombay Natur. Hist. Soc., suppl. 83: 113-126.
- Moll 1981
- Sexual and seasonal dichromatism in the Asian river turtle Callagur borneoensis. Herpetologica 37: 181-194.
- Mondolfi 1955
- Anotaciones sobre la biología de tres quelonios de los llanos de Venezuela. Mem. Soc. Cienc. Nat. La Salle 15: 177-183.
- , 1975
- Aspects of the reproductive biology of the northern diamondback terrapin Malaclemmys terrapin terrapin. Amer. Midl. Natur. 94: 166-178.
- Moon 1974
- Heteromorphism in a kinosternid turtle. Mammalian Chromosome Newsletter 15: 10-11.
- Morafka 1988
- Historical biogeography of the Bolson tortoise. Ann. Carnegie Mus. 57: 47-72.
- Morafka, 1988
- The ecogeography of the Mexican Bolson tortoise (Gopherus flavomarginatus): derivation of its endangered status and recommendations for its conservation. Ann. Carnegie Mus. 57: 1-72.
- Morales-Verdeja, 1997
- Terrestrial movements in relation to aestivation and the annual reproductive cycle of Kinosternon leucostomum. Copeia
- Moriarty, 1995
- Emydoidea blandingii (Blanding's turtle). Reproduction. Herpetol. Rev. 26: 99.
- Morreale 1982
- Temperature-dependent sex determination: current practices threaten conservation of sea turtles. Science 216: 1245-1247.
- Mosauer 1934
- The reptiles and amphibians of Tunisia. Univ. California Los Angeles, Publ. Biol. Sci. I: 46-63.
- , Rabb 1953
- A new subspecies of the turtle Geoemyda rubida (Cope) from western Mexico. Occ. Pap. Mus. Zool., Univ. Michigan (548): 1-7.
- , Bider 1960
- Variation, sexual dimorphism, and maturity in a Quebec population of the common snapping turtle, Chelydra serpentina. Can. J. Zool. 38: 19-38.
- Moskovits, Bjorndal 1990
- Diet and food preferences of the tortoises Geochelone carbonaria and G. denticulata in northwestern Brazil. Herpetologica 46: 207-218.
- Moulis 1994
- Caretta caretta (loggerhead sea turtle). Diurnal Nesting. Herpetol. Rev. 25: 119-120.
- Mount 1975
- The reptiles and amphibians of Alabama. Auburn Univ. Agric. Exp. Stat., Auburn, Alabama. 347 pp.
- Mount 1981
- The status of the flattened musk turtle, Sternotherus minor depressus Tinkle and Webb. U. S. Fish & Wildl. Serv. Report, Contract 14-16-0004-80-096. 118 pp.
- Mrosovsky 1983
- Conserving sea turtles. British Herpetol. Soc., London. 176 pp.
- Mrosovsky 1997
- Movement of hawksbill turtles—a different perspective on DNA data. Chelonian Conserv. Biol. 2: 438-439.
- Mrosovsky 1982
- Sex ratio bias in hatchling sea turtles from artificially incubated eggs. Biol. Conserv. 23: 309-314.
- , Hellmich 1936
- Wissenschaftliche Ergebnisse der Deutschen Gran Chaco-Expedition (Leiter: Professor Dr. Hans Krieg, München). Amphibien und Reptilien. I. Teil: Amphibia, Chelonia, Loricata. Strecker und Schröder, Stuttgart. 120 pp.
- , Lamoreaux 1978
- Mating behavior in three Australian chelid turtles (Testudines: Pleurodira: Chelidae). Herpetologica 34: 398-405.
- Mushinsky 1994
- Growth and sexual dimorphism of Gopherus polyphemus in central Florida. Herpetologica 50: 119-128.