- Eckrich, Owens 1995
- Solitary versus arribada nesting in the olive ridley sea turtles (Lepidochelys olivacea): a test of the predator-situation hypothesis. Herpetologica 51: 349-354.
- Edgren 1960
- Ovulation time in the musk turtle, Sternothaerus odoratus. Copeia
- Eglis 1962
- Tortoise behavior: a taxonomic adjunct. Herpetologica 18: 1-8.
- , Witham 1992
- Analysis of growth of the green turtle (Chelonia mydas) in the western central Atlantic. Bull Marine Sci. 50: 275-281.
- Einem 1956
- Certain aspects of the natural history of the mud turtle, Kinosternon bauri. Copeia
- Engberg 1978
- The seductive snakeneck (Chelodina novaeguineas). Turtles 1(1): 4-7.
- ERGO 1997
- Aldabra revisited: final report on the
- Epperson, Wendland 1997
- Gopherus polyphemus (gopher tortoise). Nesting. Herpetol. Rev. 28: 87.
- Erben 1970
- Ultrastrukturen und mineralisation rezenter und fossiler Eischalen bei Vögeln und Reptilien. Biomineralization 1: 1-66.
- Ernst 1970a
- The status of the painted turtle, Chrysemys picta, in Tennessee and Kentucky. J. Herpetol. 4: 39-45.
- Ernst 1973
- The distribution of the turtles of Minnesota. J. Herpetol. 7: 42-47.
- Ernst 1988b
- Cuora mccordi, a new Chinese box turtle from Guangxi Province. Proc. Biol. Soc. Washington 101: 466-470.
- Ernst 1980d
- Rhinoclemmys nasuta. Catalog. Amer. Amphib. Rept. 264: 1.
- Ernst 1971a
- Chrysemys picta. Catalog. Amer. Amphib. Rept. 106: 1-4.
- Ernst 1990
- Pseudemys gorzugi. Catalog. Amer. Amphib. Rept. 461: 1-2.
- Ernst 1998
- Geochelone chilensis. Catalog. Amer. Amphib. Rept. 668: 1-5.
- Ernst 1988c
- Chrysemys. Catalog. Amer. Amphib. Rept. 438: 1-8.
- Ernst 1981f
- Phrynops gibbus. Catalog. Amer. Amphib. Rept. 279: 1-2.
- Ernst 1972a
- Clemmys guttata. Catalog. Amer. Amphib. Rept. 124: 1-2.
- Ernst 1981b
- Rhinoclemmys. Catalog. Amer. Amphib. Rept. 274: 1-2.
- Ernst 1987a
- Platemys, Platemys platycephala. Catalog. Amer. Amphib. Rept. 405: 1-4.
- Ernst 1974a
- Kinosternon baurii. Catalog. Amer. Amph. Rept. 161: 1-2.
- Ernst 1972b
- Clemmys insculpta. Catalog. Amer. Amphib. Rept. 125: 1-2.
- Ernst 1980a
- Rhinoclemmys annulata. Catalog. Amer. Amphib. Rept. 250: 1-2.
- Ernst 1983a
- Platemys pallidipectoris. Catalog. Amer. Amphib. Rept. 325: 1-2.
- Ernst 1977a
- Clemmys muhlenbergii. Catalog. Amer. Amphib. Rept. 204: 1-2.
- Ernst 1980b
- Rhinoclemmys areolata. Catalog. Amer. Amphib. Rept. 251: 1-2.
- Ernst 1983c
- Platemys radiolata. Catalog. Amer. Amphib. Rept. 339: 1-2.
- Ernst 1980c
- Rhinoclemmys funerea. Catalog. Amer. Amphib. Rept. 263: 1-2.
- Ernst 1983b
- Platemys spixii. Catalog. Amer. Amphib. Rept. 326: 1-2.
- Ernst 1967c
- A mating aggression of the turtle Clemmys guttata. Copeia 1967: 473-373.
- Ernst 1981c
- Rhinoclemmys pulcherrima. Catalog. Amer. Amphib. Rept. 275: 1-2.
- Ernst 1981d
- Rhinoclemmys punctularia. Catalog. Amer. Amphib. Rept. 276: 1-2.
- Ernst 1978
- A revision of the neotropical turtle genus Callopsis (Testudines: Emydidae: Batagurinae). Herpetologica 34: 113-134.
- Ernst 1981e
- Rhinoclemmys rubida. Catalog. Amer. Amphib. Rept. 277: 1-2.
- Ernst 1992
- Trachemys gaigeae. Catalog. Amer. Amphib. Rept. 538: 1-4.
- Ernst 1981g
- Courtship behavior of male Terrapene carolina major (Reptilia, Testudines, Emydidae). Herpetol. Rev. 12(1): 7-8.
- Ernst 1977b
- Biological notes on the bog turtle, Clemmys muhlenbergii. Herpetologica 33: 241-246.
- Ernst 1981a
- Courtship of the African helmeted turtle (Pelomedusa subrufa). British J. Herpetol. 6: 141-142.
- Ernst 1976
- Ecology of the spotted turtle, Clemmys guttata (Reptilia, Testudines, Testudinidae), in southeastern Pennsylvania. J. Herpetol. 10: 25-33.
- Ernst 1974b
- Observations on the courtship of male Graptemys pseudogeographica. J. Herpetol. 8: 377-378.
- Ernst 1984
- Geographic variation in the Neotropical turtle, Platemys platycephala. J. Herpetol. (1983) 17: 345-355.
- Ernst 1971d
- Observations on the egg and hatchling of the American turtle, Chrysemys picta. British J. Herpetol. 4: 224-227.
- Ernst 1967a
- Intergradation between the painted turtles Chrysemys picta picta and Chrysemys picta dorsalis. Copeia 1967: 131-136.
- Ernst 1971b
- Population dynamics and activity cycles of Chrysemys picta in southeastern Pennsylvania. J. Herpetol. 5: 151-160.
- Ernst 1971c
- Observations of the painted turtle, Chrysemys picta. J. Herpetol. 5: 216-220.
- Ernst 1967b
- Serum protein analysis: a taxonomic tool. Int. Turtle and Tort. Soc. J. 1(3): 34-36.
- Ernst 1988a
- Redescriptions of two Chinese Cuora (Testudines: Emydidae). Proc. Biol. Soc. Washington 101: 155-161.
- Ernst 1970b
- Reproduction in Clemmys guttata. Herpetologica 26: 228-232.
- Ernst 1990b
- Systematics taxonomy, variation, and geographic distribution of the slider turtle. In: J. W. Gibbons (ed.), The biology of the slider turtle, pp. 57-67. Smithsonian Inst. Press, Washington, D. C.
- Ernst 1969
- An intergrade population of Pseudemys scripta elegans x Pseudemys scripta troosti in Kentucky. J. Herpetol. 3: 103.
- Ernst, McDonald 1989
- Preliminary report on enhanced growth and early maturity in a Maryland population of painted turtles, Chrysemys picta. Maryland Herpetol. Soc. 25: 135-142.
- Ernst 1971
- The taxonomic status and zoogeography of the painted turtle, Chrysemys picta, in Pennsylvania. Herpetologica 27: 390-396.
- Ernst 1969
- The turtles of Kentucky. Int. Turtle and Tort. Soc. J. 3(5): 13-15.
- Ernst 1973
- Biology of Chrysemys picta bellii in southwestern Minnesota. J. Minnesota Acad. Sci. 38: 77-80.
- Ernst 1980
- Relationships between North American turtles of the Chrysemys complex as indicated by their endoparasitic helminths. Proc. Biol. Soc. Washington 93: 339-345.
- Ernst, Zug 1994
- Observations on the reproductive biology of the spotted turtle, Clemmys guttata, in southeastern Pennsylvania. J. Herpetol. 28:99-102.
- Ernst, 1977
- Taxonomic status of the turtle, Chrysemys picta, in the northern peninsula of Michigan. Proc. Biol. Soc. Washington 90: 685-689.
- Ernst, Lovich 1990
- A new species of Cuora (Reptilia: Testudines: Emydidae) from the Ryukyu Islands. Proc. Biol. Soc. Washington 103: 26-34.
- Ernst, McBreen 1991c
- Wood turtle. Clemmys insculpta (LeConte). In: K. Terwilliger (ed.), Virginia's endangered species, pp. 455-457. McDonald and Woodward Publ. Co., Blacksburg, Virginia.
- Ernst, McBreen 1991b
- Terrapene carolina. Catalog. Amer. Amphib. Rept. 512: 1-13.
- Ernst, McBreen 1991a
- Terrapene. Catalog. Amer. Amphib. Rept. 511: 1-6.
- Ernst, Bruce Bury 1982
- Malaclemys, M. terrapin. Catalog. Amer. Amphib. Rept. 299: 1-4.
- Ernst, Bruce Bury 1977
- Clemmys muhlenbergii. Catalog. Amer. Amphib. Rept. 204: 1-2.
- Ernst, 1972
- Turtles of the United States. Univ. Press Kentucky, Lexington. 347 pp.
- Ernst, 1989
- Turtles of the World. Smithsonian Inst. Press, Washington, D. C. 313 pp.
- Ernst, McCord 1987
- Two new turtles from Southeast Asia. Proc. Biol. Soc. Washington 100: 624-628.
- Ernst 1994
- Turtles of the United States and Canada. Smithsonian Inst. Press, Washington and London, 578 pp.
- Ernst 1988b
- Comparisons of shell morphology among turtles of the Kinosternon minor complex. Amer. Midl. Natur. 120: 282-288.
- Ernst 1988a
- Chelydra. Catalog. Amer. Amphib. Rept. 420: 1-4.
- Ernst 1973
- Growth of the mud turtle, Kinosternon subrubrum, in Florida. Herpetologica 30: 317-320.
- Ernst 1974
- Subspecific variation and intergradation in Florida Kinosternon subrubrum. Herpetologica 30: 317-320.
- Ernst 1995
- Fire ecology of the Florida box turtle, Terrapene carolina bauri. Herpetol. Rev. 26: 185-187.
- Ernst 1989
- The distribution and status of the flattened musk turtle, Sternotherus depressus (Testudines: Kinosternidae). Tulane Stud. Zool. Bot. 27: 1-20.
- Espenshade, Buskirk 1994
- The impressed tortoise. The Tortuga Gazette 30(5): 1-5.
- Esque, 1994
- Ingestion of bones, stones, and soil by desert tortoises. In: R. B. Bury and D. J. Germano (eds.), Biology of North American tortoises, pp. 105-111. U. S. Fish Wildl. Serv. Res. Rep. 13.
- Estes, Hutchison 1980
- Eocene lower vertebrates from Ellesmere Island, Canadian Arctic Archipelago. Palaeogeogr., Palaeoclimatol., Palaeoecol. 30: 325-347.
- Etchberger 1988
- The reproductive biology of the male loggerhead musk turtle, Sternotherus minor minor, from the southern limit of its range in central Florida. Prog. Comb. Meet. Herpetol. League,... Soc. Stud. Amphib. Rept., and Amer..soc. Ichthyol. Herpetol., p. 60.
- Etchberger, Iverson 1990
- Pseudemys texana. Catalog. Amer. Amphib. Rept. 485: 1-2.
- Etchberger, Stovall 1990
- Seasonal variation in the testicular cycle of the loggerhead musk turtle, Sternotherus minor minor, from central Florida. Can. J. Zool. 68: 1071-1074.
- Etchberger, Ehrhart 1987
- The reproductive biology of the female loggerhead musk turtle, Sternotherus minor minor, from the southern part of its range in central Florida. Herpetologica 43: 66-73.
- Ewert 1979
- The embryo and its egg: development and natural history. In: M. Harless and H. Morlock (eds.), Turtles: Perspectives and Research, pp. 333-413. Wiley-Interscience, New York.
- Ewert 1985
- Embryology in turtles. In: C. Gans, F. Billett, and P. F. A. Maderson (eds.), Biology of the Reptilia, vol. 14, Development A, pp. 75-267. John Wiley & Sons, New York.
- Ewert 1991
- Cold torpor, diapause, delayed hatching and aestivation in reptiles and birds. In: D. C. Deeming, and M. W. J. Ferguson (eds.), Egg incubation: its effects on embryonic development in birds and reptiles, pp. 173-191. Cambridge Univ. Press, New York.
- Ewert 1976
- Nests, nesting and aerial basking of Macroclemys under natural conditions, and comparisons with Chelydra (Testudines: Chelydridae). Herpetologica 32: 150-156.
- Ewert, 1991
- Sex determination in turtles: diverse patterns and some possible adaptive values. Copeia
- Ewert, 1996
- Seasonal variation of embryonic diapause in the striped mud turtle (Kinosternon baurii) and general considerations for conservation planning. Chelonian Conserv. Biol. 2: 43-54.
- Ewing 1943
- Continued fertility in female box turtles following mating. Copeia