Apalone Rafinesque, 1832—NORTH AMERICAN SOFTSHELLS
The generic name Apalone Rafinesque was resurrected by Meylan (1987, Bull. Am. Mus. Nat. Hist. 186: 1–101) for the monophyletic group of softshell turtles consisting of Apalone ferox, A. mutica and A. spinifera which was identified through a phylogenetic analysis of all living softshells. Meylan’s revised taxonomy has been widely adopted (e.g., Iverson, 1992, A revised checklist with distribution maps of the turtles of the world, Privately printed; Conant and Collins, 1992, A field guide to reptiles and amphibians: Eastern and Central North America, Houghton Mifflin Co.; Collins, 1997, SSAR Herpetol. Circ. 25; Ernst and Barbour, 1989, Turtles of the World, Smithsonian Instit. Press). Authors who continue to use Trionyx for species of Apalone (e.g., Ernst et al., 1994, Turtles of the United States and Canada, Smithsonian Instit. Press; Plummer, 1997, Chelon. Conserv. Biol. 2: 514-520) cite Webb (1990, Cat. Am. Amph. Rept. 487) who considers that "total acceptance of [Meylan, op. cit.] classification is premature". However, no alternative hypothesis of relationships for these species or alternative taxonomy has been offered. To our knowledge there is no evidence, published or unpublished, that Apalone is not monophyletic. In fact, sequence data from the cytochrome b gene, which so far fails to resolve trionychid relationships, strongly supports monophyly of Apalone (Engstrom et al. in prep.). It is true that Meylan’s (op. cit.) work suggests that the North American softshells (Apalone) should be assigned to the same Tribe as Trionyx triunguis, the type of the genus Trionyx. However, as pointed out in Meylan (1996, Herpetol. Rev. 27.41–42), the North American softshells are distinctive morphologically and biologically, and diverged from their closest relatives during the Cretaceous (Gardiner et al., 1995, Can. J. Earth Sci. 32: 631–643). The content of Apalone follows the work of Webb (1962, Univ. Kansas Publ. Mus. Nat. Hist. 13: 429–611). Reviewed by Webb (1990, [as Trionyx] Cat. Am. Amph. Rept. 487).

A. ferox (Schneider, 1783)—Florida Softshell
Reviewed by Webb (1973, [as T. ferox] Cat. Am. Amph. Rept. 138).

A. mutica (Lesueur, 1827)—Smooth Softshell
Reviewed by Webb (1973, [as T. muticus] Cat. Am. Amph. Rept. 139).
A. m. calvata (Webb, 1959)—Gulf Coast Smooth Softshell
A. m. mutica (Lesueur, 1827)—Midland Smooth Softshell

A. spinifera (Lesueur, 1827)—Spiny Softshell
Reviewed by Webb (1973, [as T. spiniferus] Cat. Am. Amph. Rept. 140).
A. s. aspera (Agassiz, 1857)—Gulf Coast Spiny Softshell
A. s. emoryi (Agassiz, 1857)—Texas Spiny Softshell
A. s. guadalupensis (Webb, 1962)—Guadalupe Spiny Softshell
A. s. hartwegi (Conant and Goin, 1948)—Western Spiny Softshell
A. s. pallida (Webb, 1962)—Pallid Spiny Softshell
A. s. spinifera (Lesueur, 1827)—Eastern Spiny Softshell

Caretta Rafinesque, 1814—LOGGERHEAD SEATURTLES
Reviewed by Dodd (1990, Cat. Am. Amph. Rept. 482). This comment applies to all the standard English names of the seaturtles listed herein. After much discussion, and with much chagrin to seaturtle biologists, we decided to include the name "seaturtle" in the standard English names. We felt this would clarify for the non–herpetologist what kind of beast a "loggerhead" or "hawksbill" is. This decision was also aided by conversations with workers associated with the soon to be finished federal names lists, in which "seaturtle" will also be used.

C. caretta (Linnaeus, 1758)—Loggerhead Seaturtle
Reviewed by Dodd (1990, Cat. Am. Amph. Rept. 483).

Chelonia Brongniart, 1800—GREEN SEATURTLES
See note under Caretta. Reviewed by Hirth (1980, Cat. Am. Amph. Rept. 248).

C. mydas (Linnaeus, 1758)—Green Seaturtle
The Black Turtle of the Pacific Ocean has been considered a separate species (Chelonia agassizii) by some authors (e.g., Pritchard and Trebbau, 1984, SSAR Contrib. Herpetol. 2: 1–403), a subspecies of Chelonia mydas by others (Kamezaki and Matsui, 1995, J. Herpetol. 29: 51–60), and synonymous with Chelonia mydas by others (e.g., Bowen et al., 1992, Evolution 46: 865–881). We follow Parham and Zug (1996, Marine Turtle Newsl. 72: 2–5) in not recognizing it taxonomically until more definitive work is done. Reviewed by Hirth (1980, Cat. Am. Amph. Rept. 249).

Chelydra Schweigger, 1812—SNAPPING TURTLES
Reviewed by Ernst et al. (1988, Cat. Am. Amph. Rept. 419).

C. serpentina (Linnaeus, 1758)—Snapping Turtle
This species has previously been called the Common Snapping Turtle (e.g., Collins, 1997, SSAR Herpetol. Circ. 25), but the adjective has been dropped because it might be misinterpreted as referring to the abundance of the species rather than to its being the typical, most widespread species of its genus. Reviewed by Gibbons et al. (1988, Cat. Am. Amph. Rept. 420).
C. s. osceola Stejneger, 1918—Florida Snapping Turtle
C. s. serpentina (Linnaeus, 1758)—Eastern Snapping Turtle

Chrysemys Gray, 1844—PAINTED TURTLES
We follow Vogt and McCoy (1980, Ann. Carnegie Mus. Nat. Hist. 49: 93–102) and Seidel and Smith (1986, Herpetologica 42: 242–248) in restricting this genus to the single species C. picta. Reviewed by Ernst (1988, Cat. Am. Amph. Rept. 438).

C. picta (Schneider, 1783)—Painted Turtle
Reviewed by Ernst (1971, Cat. Am. Amph. Rept. 106).
C. p. bellii (Gray, 1831)—Western Painted Turtle
C. p. dorsalis Agassiz, 1857—Southern Painted Turtle
C. p. marginata Agassiz, 1857—Midland Painted Turtle
C. p. picta (Schneider, 1783)—Eastern Painted Turtle

Clemmys Ritgen, 1828—AMERICAN POND TURTLES
Restriction of Clemmys to North American taxa follows McDowell (1964, Proc. Zool. Soc. London 143: 239). Although the genus Clemmys herein includes four species, Bickham et al. (1996, Herpetologica 52: 89–97) and Burke et al. (1996, Herpetologica 52: 572–584) have recently shown that the genus may be paraphyletic relative to Emys, Emydoidea, and Terrapene. Thus, the current generic arrangement is likely to change in the near future. Reviewed by Bury and Ernst (1977, Cat. Am. Amph. Rept. 203).

C. guttata (Schneider, 1792)—Spotted Turtle
Reviewed by Ernst (1972, Cat. Am. Amph. Rept. 124).

C. insculpta (LeConte, 1830)—Wood Turtle
Reviewed by Ernst (1972, Cat. Am. Amph. Rept. 125).

C. marmorata (Baird and Girard, 1852)—Pacific Pond Turtle
We have retained the name Pacific Pond Turtle (e.g., Carr, 1952, Handbook of Turtles, Comstock Press; Iverson, 1992, A revised checklist with distribution maps of the turtles of the World, Privately printed) despite Collins’ (1997, SSAR Herpetol. Circ. 25) recent recommendation to change the name to the Western Pond Turtle.
C. m. marmorata (Baird and Girard, 1852)—Northern Pacific Pond Turtle
C. m. pallida Seeliger, 1945—Southern Pacific Pond Turtle

C. muhlenbergii (Schoepff, 1801)—Bog Turtle
Reviewed by Ernst and Bury (1977, Cat. Am. Amph. Rept. 204).

Deirochelys Agassiz, 1857—CHICKEN TURTLES
Geographic variation in this species was most recently reviewed by Schwartz (1956, Fieldiana Zool. 34: 461–503). Reviewed by Zug and Schwartz (1971, Cat. Am. Amph. Rept. 107).

D. reticularia (Latreille, 1801)—Chicken Turtle
D. r. chrysea Schwartz, 1956—Florida Chicken Turtle
D. r. miaria Schwartz, 1956—Western Chicken Turtle
D. r. reticularia (Latreille, 1801)—Eastern Chicken Turtle

Dermochelys Blainville, 1816—LEATHERBACK SEATURTLES
See note under Caretta. Reviewed by Pritchard (1980, Cat. Am. Amph. Rept. 238).

D. coriacea (Vandelli, 1761)—Leatherback Seaturtle

Emydoidea Gray, 1870—BLANDING’S TURTLES
Reviewed by McCoy (1973, Cat. Am. Amph. Rept. 136).

E. blandingii (Holbrook, 1838)—Blanding’s Turtle

Eretmochelys Fitzinger 1843—HAWKSBILL SEATURTLES
See note under Caretta.

E. imbricata (Linnaeus, 1766)—Hawksbill Seaturtle
E. i. bissa (Rüppell, 1835)—Pacific Hawksbill Seaturtle
E. i. imbricata (Linnaeus, 1766)—Atlantic Hawksbill Seaturtle

Gopherus Rafinesque, 1832—GOPHER TORTOISES
We follow Crumly (1994, Fish Wildlife Res. 13: 7–37) in applying the name Gopherus to all four of the living North American testudinids (one of which is extralimital). Reviewed by Auffenberg and Franz (1978, Cat. Am. Amph. Rept. 211).

G. agassizii (Cooper, 1863)—Desert Tortoise
Reviewed by Auffenberg and Franz (1978, Cat. Am. Amph. Rept. 212).

G. berlandieri (Agassiz, 1857)—Berlandier’s Tortoise
Reviewed by Auffenberg and Franz (1978, Cat. Am. Amph. Rept. 213).

G. polyphemus (Daudin, 1802)—Gopher Tortoise
Reviewed by Auffenberg and Franz (1978, Cat. Am. Amph. Rept. 215).

Graptemys Agassiz, 1857—MAP TURTLES
Evidence for monophyly and content of this genus was reviewed by Dobie (1981, Tulane Stud. Zool. Bot. 23: 85) and Lamb and Osentoski (1997, J. Herpetol. 31: 258–265). Reviewed by McCoy and Vogt (1994, Cat. Am. Amph. Rept. 584).

G. barbouri Carr and Marchand, 1942—Barbour’s Map Turtle
Reviewed by Sanderson and Lovich (1988, Cat. Am. Amph. Rept. 421).

G. caglei Haynes and McKown, 1974—Cagle’s Map Turtle
Reviewed by Haynes (1976, Cat. Am. Amph. Rept. 184).

G. ernsti Lovich and McCoy, 1992—Escambia Map Turtle
Reviewed by Lovich and McCoy (1994, Cat. Am. Amph. Rept. 585).

G. flavimaculata Cagle, 1954—Yellow-blotched Map Turtle
Reviewed by McCoy and Vogt (1987, Cat. Am. Amph. Rept. 403).

G. geographica (LeSueur, 1817)—Northern Map Turtle
We have changed the name from Common Map Turtle because of the possibility that the word "common" might be misinterpreted to imply abundance rather than to the fact that it has a broad range. Reviewed by McCoy and Vogt (1990, Cat. Am. Amph. Rept. 484).

G. gibbonsi Lovich and McCoy, 1992—Pascagoula Map Turtle
Reviewed by Lovich and McCoy (1994, Cat. Am. Amph. Rept. 586).

G. nigrinoda Cagle, 1954—Black-knobbed Map Turtle
Reviewed by Lahanas (1986, Cat. Am. Amph. Rept. 396).
G. n. delticola Folkerts and Mount, 1969—Delta Map Turtle
G. n. nigrinoda Cagle, 1954—Black-knobbed Map Turtle

G. oculifera (Baur, 1890)—Ringed Map Turtle
Reviewed by McCoy and Vogt (1988, Cat. Am. Amph. Rept. 422).

G. ouachitensis Cagle, 1953—Ouachita Map Turtle
Reviewed by Vogt (1995, Cat. Am. Amph. Rept. 603).
G. o. ouachitensis Cagle, 1953—Ouachita Map Turtle
G. o. sabinensis Cagle, 1953—Sabine Map Turtle

G. pseudogeographica (Gray, 1831)—False Map Turtle
Reviewed by Vogt (1995, Cat. Am. Amph. Rept. 604).
G. p. kohnii (Baur, 1890)—Mississippi Map Turtle
G. p. pseudogeographica (Gray, 1831)—False Map Turtle

G. pulchra Baur, 1893—Alabama Map Turtle
Reviewed by Lovich (1985, Cat. Am. Amph. Rept. 360).

G. versa Stejneger, 1925—Texas Map Turtle
Reviewed by Vogt (1981, Cat. Am. Amph. Rept. 280).

Kinosternon Spix, 1824—AMERICAN MUD TURTLES
Iverson (1991, Herpetol. Monog. 5: 1–27) is the most recent reviewer of this genus. See also comment under Sternotherus.

K. arizonense Gilmore, 1922—Arizona Mud Turtle
Recognition of this taxon as a full species follows Iverson (1989, Southwest. Nat. 34: 356-364) and Serb et al. (2000, Mol. Phylog. Evol. in press).

K. baurii (Garman, 1891)—Striped Mud Turtle
Reviewed by Ernst (1974, Cat. Am. Amph. Rept. 161).

K. flavescens (Agassiz, 1857)—Yellow Mud Turtle
Reviewed by Seidel (1978, Cat. Am. Amph. Rept. 216). The validity of the subspecies Kinosternon flavescens spooneri Smith, 1951 (Illinois Mud Turtle) has been questioned by Houseal et al. (1982, Copeia 1982: 567–580) and Berry and Berry (1984, Ann. Carnegie Mus. Nat. Hist. 53: 185–206), and Serb et al. (2000, Mol. Phylog. Evol. in press). Nevertheless, this subspecies was retained by Conant and Collins (1992, A field guide to reptiles and amphibians: Eastern and Central North America, Houghton Mifflin Co.) and Collins (1997, SSAR Herpetol. Circ. 25) without explanation

K. hirtipes (Wagler, 1830)—Rough-footed Mud Turtle
Collins (1997, SSAR Herpetol. Circ. 25) suggested the name Mexican Mud Turtle for this turtle, but that name is generally applied to Kinosternon integrum (Iverson et al., 1998, Cat. Am. Amph. Rept. 652).
K. h. murrayi Glass and Hartweg, 1951—Mexican Plateau Mud Turtle

K. sonoriense LeConte, 1854—Sonora Mud Turtle
Reviewed by Iverson (1976, Cat. Am. Amph. Rept. 176).
K. s. longifemorale Iverson, 1981—Sonoyta Mud Turtle
K. s. sonoriense LeConte, 1854—Sonora Mud Turtle

K. subrubrum (Lacepède, 1788)—Eastern Mud Turtle
Reviewed by Iverson (1977, Cat. Am. Amph. Rept. 193).
K. s. hippocrepis Gray, 1855—Mississippi Mud Turtle
K. s. steindachneri (Siebenrock, 1906)—Florida Mud Turtle
K. s. subrubrum (Lacepède, 1788)—Eastern Mud Turtle

Lepidochelys Fitzinger, 1843—RIDLEY SEATURTLES
See note under Caretta. Bowen et al. (1991, Nature 352: 709) reviewed variation within this genus. Reviewed by Zug and Ernst (1994, Cat. Am. Amph. Rept. 587).

L. kempii (Garman, 1880)—Kemp’s Ridley Seaturtle
Reviewed by Wilson and Zug (1991, Cat. Am. Amph. Rept. 509).

L. olivacea (Eschscholtz, 1829)—Olive Ridley Seaturtle
Reviewed by Zug et al. (1998, Cat. Am. Amph. Rept. 653).

Macrochelys Gray, 1856—ALLIGATOR SNAPPING TURTLES
Reviewed by Lovich (1993, Cat. Am. Amph. Rept. 562).

M. temminckii (Troost in Harlan, 1835)—Alligator Snapping Turtle
Webb (1995, Chelonian Conserv. Biol. 1: 322–323) demonstrated that the name Macrochelys Gray has precedence over the name Macroclemys Gray contra Smith (1955, Herpetologica 11: 16), who argued that the use of Macrochelys was incorrect for this genus.

Malaclemys Gray, 1844—DIAMOND-BACKED TERRAPINS
Dobie (1981, Tulane Stud. Zool. Bot. 23: 85) and Lamb and Osentoski (1997, J. Herpetol. 31: 258–265). reviewed evidence for monophyly and content of this genus. Reviewed by Ernst and Bury (1982, Cat. Am. Amph. Rept. 299).

M. terrapin (Schoepff, 1793)—Diamond-backed Terrapin
A detailed study of the geographic variation of these turtles should prove highly informative.
M. t. centrata (Latreille, 1801)—Carolina Diamond-backed Terrapin
M. t. littoralis (Hay, 1904)—Texas Diamond-backed Terrapin
M. t. macrospilota (Hay, 1904)—Ornate Diamond-backed Terrapin
M. t. pileata (Wied-Neuwied, 1865)—Mississippi Diamond-backed Terrapin
M. t. rhizophorarum Fowler, 1906—Mangrove Diamond-backed Terrapin
M. t. tequesta Schwartz, 1955—Florida East Coast Terrapin
M. t. terrapin (Schoepff, 1793)—Northern Diamond-backed Terrapin

Palea Meylan, 1987—WATTLE–NECKED SOFTSHELLS

P. steindachneri (Siebenrock, 1906)—Wattle-necked Softshells (Introduced)
Introduced into the Hawaiian Islands (McKeown and Webb, 1982, J. Herpetol. 16: 107–111).

Pelodiscus Gray, 1844—CHINESE SOFTSHELLS

P. sinensis (Weigman, 1835)—Chinese Softshells (Introduced)
Introduced into the Hawaiian Islands (McKeown and Webb, 1982, J. Herpetol. 16: 107–111).

Pseudemys Gray, 1856—COOTERS
Content of this genus follows Seidel and Smith (1996, Herpetologica 42: 242–248). Reviewed by Seidel and Ernst (1996, Cat. Am. Amph. Rept. 625).

P. alabamensis Baur, 1893—Alabama Red-bellied Cooter
Reviewed by McCoy and Vogt (1985, Cat. Am. Amph. Rept. 371).

P. concinna (LeConte, 1830)—River Cooter
Only two subspecies are recognized here: Pseudemys concinna concinna, and P. c. floridana. Seidel (1994, Chelon. Conserv. Biol. 1: 117–130) demonstrated that P. c. hieroglyphica and P. c. metteri are not distinct and represent only clinal variation; he elevated P. c. suwanniensis to species status (see separate entry); and he relegated P. floridana to a subspecies of P. concinna (see comments below). Reviewed by Seidel and Dreslik (1996, Cat. Am. Amph. Rept. 626).
P. c. concinna (LeConte, 1830)—Eastern River Cooter
P. c. floridana (LeConte, 1830)—Coastal Plain Cooter
This subspecies was formerly recognized as Pseudemys floridana floridana, but Seidel (1994, Chelon. Conserv. Biol. 1: 117–130) transferred it to Pseudemys concinna. Jackson (1995, Chelon. Conserv. Biol. 1: 329–333) objected to this based on observations that concinna and floridana are sympatric in northern Florida and South Carolina. Seidel (1995, Chelon. Conserv. Biol. 1: 333) countered that the two forms may be macrosympatric at some locations, but that they intergrade in other areas. Based on morphometric, osteological, biochemical, and pigmentation studies, op. cit.) found no character which reliably separates the two forms in many transition areas (intergrade zones) between the coastal plain and piedmont of the Atlantic slope.

P. gorzugi Ward, 1984—Rio Grande Cooter
This form was originally described by Ward (1984, Spec. Pub. Mus. Texas Tech. Univ. 21: 1–50) as a subspecies of Pseudemys concinna, but it was elevated to species staus by Ernst (1990, Cat. Am. Amphib. Rept. 461). That change is appropriate given its distant allopatry with P. concinna (Ward, 1984, Cat. Am. Amph. Rept. 487: 1–7), its morphological distinctiveness (Seidel, 1994, Chelon. Conserv. Biol. 1: 117–130), and its uniquely divergent DNA (Starkey, 1997, Ph.D. dissertation, Texas A&M Univ.).

P. nelsoni Carr, 1938—Florida Red-bellied Cooter
Reviewed by Jackson as Chrysemys nelsoni (1978, Cat. Am. Amph. Rept. 210).

P. peninsularis Carr, 1938—Peninsula Cooter
Formerly considered a subspecies of Pseudemys floridana (Conant and Collins, 1992, A field guide to reptiles and amphibians: Eastern and Central North America. Houghton Mifflin Co., Boston.), Seidel (1994, Chelon. Conserv. Biol. 1: 117–130) elevated this form to a species. He demonstrated that peninsularis does not intergrade with P. c. floridana in northern Florida, that it is sympatric with P. suwanniensis, and that there are morphometric and osteological characters (as well as color patterns) which consistently distinguish it from P. concinna. Reviewed by Seidel and Ernst (1998, Cat. Am. Amph. Rept. 669).

P. rubriventris (LeConte, 1830)—Northern Red-bellied Cooter
Reviewed by Graham (1971, Cat. Am. Amph. Rept. 510).

P. suwanniensis Carr, 1937—Suwannee Cooter
Seidel (1994, Chelon. Conserv. Biol. 1: 117–130) elevated this form from a subspecies of P. concinna to a species based on his belief that it is allopatric or parapatric with other members of the concinna group. However, Jackson (1995, Chelon. Conserv. Biol. 1: 329–333) believes that it may intergrade with P. c. concinna in northern Florida and thus does not deserve species status. Availability of and analysis of more material from the Gulf Hammock region of Northwest Florida will be necessary to resolve this controversy.

P. texana Baur, 1893—Texas River Cooter
Reviewed by Etchberger and Iverson (1990, Cat. Am. Amph. Rept. 485).

Sternotherus Gray, 1825—MUSK TURTLES
The monophyly of the genus Sternotherus was questioned by Seidel et al. (1986, Copeia 1986: 285–294) and Iverson (1991, Herpetol. Monogr. 5: 1–27); however, recent work by Iverson (1998, Chelon. Conserv. Biol. 3: 113–117) provides support for its monophyly. Reviewed by Zug (1986, Cat. Am. Amph. Rept. 397).

S. carinatus (Gray, 1855)—Razor-backed Musk Turtle
Reviewed by Iverson (1979, Cat. Am. Amph. Rept. 226).

S. depressus Tinkle and Webb, 1955—Flattened Musk Turtle
Reviewed by Iverson (1977, Cat. Am. Amph. Rept. 194).

S. minor (Agassiz, 1857)—Loggerhead Musk Turtle
Reviewed by Iverson (1977, Cat. Am. Amph. Rept. 195).
S. m. minor (Agassiz, 1857)—Loggerhead Musk Turtle
S. m. peltifer Smith and Glass, 1947—Stripe-necked Musk Turtle

S. odoratus (Latreille, 1801)—Stinkpot
We have changed the name from Common Musk Turtle because of the possibility that the word "common" might be misinterpreted to imply abundance rather than to the fact that it has a broad range. Reviewed by Reynolds and Seidel (1982, Cat. Am. Amph. Rept. 287).

Terrapene Merrem, 1820—AMERICAN BOX TURTLES
A review of the variation in this genus is currently in press (K. Dodd, pers. comm.). Reviewed by Ernst and McBreen (1991, Cat. Am. Amph. Rept. 511).

T. carolina (Linnaeus, 1758)—Eastern Box Turtle
Reviewed by Ernst and McBreen (1991, Cat. Am. Amph. Rept. 512).
T. c. bauri Taylor, 1894—Florida Box Turtle
T. c. carolina (Linnaeus, 1758)—Eastern Box Turtle
T. c. major (Agassiz, 1857)—Gulf Coast Box Turtle
T. c. triunguis (Agassiz, 1857)—Three-toed Box Turtle

T. ornata (Agassiz, 1857)—Ornate Box Turtle
Reviewed by Ward (1978, Cat. Am. Amph. Rept. 217).
T. o. luteola Smith and Ramsey, 1952—Desert Box Turtle
T. o. ornata (Agassiz, 1857)—Ornate Box Turtle

Trachemys Agassiz, 1857—SLIDERS
Content of this genus follows Seidel and Smith (1996, Herpetologica 42: 242–248).

T. gaigeae (Hartweg, 1939)—Big Bend Slider
Price and Hillis (1989, First World Congr. Herpetol. Abstract) and Seidel et al. (1999, Herpetologica 55: 470–487) provide evidence for the specific recognition of this form. Reviewed by Ernst (1992, Cat. Am. Amph. Rept. 538.).

T. scripta (Schoepff, 1792)—Pond Slider
T. s. elegans (Wied–Neuwied, 1838)—Red-eared Slider
T. s. scripta (Schoepff, 1792)—Yellow-bellied Slider
T. s. troostii (Holbrook, 1836)—Cumberland Slider