Terrapene triunguis (AGASSIZ, 1857)
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Higher Taxa | Emydidae, Emydinae, Testudinoidea, Testudines (turtles) |
Subspecies | |
Common Names | E: Three-toed Box Turtle |
Synonym | Cistudo triunguis AGASSIZ 1857: 445 Cistudo carolina var. cinosternoides — BOULENGER 1889: 117 (partim) Terrapene carolina triunguis — STRECKER 1910: 121 Terrapene triunguis — BURT 1935 Terrapene carolina triunguis — WERMUTH & MERTENS 1961: 165 Terrapene carolina triunguis — MILSTEAD 1969 Terrapene carolina triunguis — CONANT & COLLINS 1991: 53 Terrapene carolina triunguis — BARTLETT & BARTLETT 1999: 297 Terrapene carolina triunguis — CROTHER 2000 Terrapene carolina triunguis — RHODIN et al. 2010 Terrapene mexicana triunguis — MARTIN et al. 2013 Terrapene carolina triunguis — SPINKS et al. 2016 Terrapene carolina triunguis — RHODIN et al. 2017: 80 (undecided) Terrapene mexicana triunguis — RHODIN et al. 2017: 80 (undecided) Terrapene triunguis — RHODIN et al. 2017: 80 (undecided) Terrapene carolina triunguis — SPINNER 2019 Terrapene carolina triunguis — THOMSON et al. 2021 Terrapene triunguis — TTWG 2021 |
Distribution | USA (Alabama, Arkansas, Illinois, Kansas, Louisiana, Mississippi, Missouri, Oklahoma, Texas) Type locality: “Louisiana and Mississippi . . . New Orleans . . . Osage River . . . and from Georgia.” Restricted to “New Orleans, Louisiana,” by Schmidt (1953: 94). |
Reproduction | Oviparous. |
Types | Syntypes: USNM 86871 (formerly MCZ 1519, 1522–1525) (alcoholic adult female, CL 119 mm), New Orleans, Louisiana, collected by N. B. Benedict, date unknown, cataloged 6 Dec 1932 (see also Reynolds et al. 2007); USNM 86872 (formerly MCZ 1519) (alcoholic adult female, CL 114 mm), locality, collector, and catalog date as for USNM 86871 (see Reynolds et al. 2007) |
Diagnosis | Additional details, e.g. a detailed description or comparisons (1903 characters), are available for collaborators and contributors. Please contact us for details. |
Comment | Subspecies: following Martin et al. (2013) who removed Terrapene carolina triunguis (AGASSIZ 1857), T. c. mexicana (GRAY 1849), and T. c. yucatana (BOULENGER 1895) and assign them to T. mexicana. Spinks et al. 2016 suggested to synonymize mexicana with T. c. triunguis without commenting on the priority issue. Martin et al. (2013) suggested elevating a clade consisting of triunguis, mexicana, and yucatana to a distinct species: Terrapene mexicana ssp. (Martin et al. 2013). This was rejected by Fritz & Havaš 2014. Hybridization: Terrapene carolina triunguis (AGASSIZ 1857) and Terrapene ornata ornata (AGASSIZ 1857) may hybridize in Texas (Lutterschmidt et al. 2007). Phylogenetics: T. coahuila, carolina, and triunguis are closely related phylogenetically, although they are often treated as separate species. Genetically, they may be more appropriately treated as subspecies (see Thomson et al. 2021). Distribution: for a range map of carolina, bauri, major, triunguis, ornata, and luteola, see Martin et al. 2013, TTWG 2021. Habitat: terrestrial (usually in forests) See also T. carolina. |
Etymology | Named after Latin tri = three and Latin unguis = claw(s), referring to the three toes on hind feet. |
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