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Ateuchosaurus okinavensis (THOMPSON, 1912)

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Higher TaxaScincidae, (Ateuchosauridae, Ateuchosaurini), Scincoidea, Sauria, Squamata (lizards)
Subspecies 
Common NamesE: Ryukyu short-legged skink 
SynonymLygosoma okinavensis THOMPSON 1912: 4
Lygosaurus pellopleurus HALLOWELL 1861: 496–497 (part)
Lygosaurus pellopleurus — STEJNEGER 1907: 222–224 (part)
Lygosaurus pellopleurus — STEJNEGER 1927: 2
Lygosaurus pellopleurus — VAN DENBURGH 1912a: 7 (part)
Lygosaurus pellopleurus — VAN DENBURGH 1912b: 240–241 (part)
Lygosaurus pellopleurus — SCLATER 1950: 114.
Lygosoma pellopleurum — BOULENGER 1887: 319
Lygosoma pellopleurum — OKADA 1891: 70
Lygosoma (Homolepida) pellopleurus — BOETTGER 1895: 107
Ateuchosaurus pellopleurus — SMITH 1937: 231
Ateuchosaurus pellopleurus — TANAKA 1979: 37 (part)
Ateuchosaurus pellopleurus — HIKIDA 1996: 81 (part)
Ateuchosaurus pellopleurus — OTA et al. 1999: 106 (part)
Ateuchosaurus pellopleurus — GORIS & MAEDA 2004: 155–156 (part)
Ateuchosaurus pellopleurus — AUSTIN & ARNOLD 2006: fig. 2, table 1
Ateuchosaurus pellopleurus — PYRON et al. 2013: fig. 7
Ateuchosaurus pellopleurus — HEDGES 2014: 322
Ateuchosaurus pellopleurus — ZHENG & WIENS 2016: figs 1–2
Ateuchosaurus pellopleurus — OKAMOTO 2017: table 5.2
Ateuchosaurus pellopleurus — MAKINO et al. 2020: 7 (“southern lineage”)Ateuchosaurus pellopleurus — OKAMOTO & KURITA 2021: 142–143 (part)
Lygosoma pellopleurus — OKADA 1939: 206–209 (part).
Lygosoma (Ateuchosaurus) pellopleurum — NAKAMURA & UÉO 1963: 123 (part)
Ateuchosaurus okinavensis — MAKINO et al. 2023 
DistributionJapan (Ryukyu Archipelago: Okinawa Group)

Type locality: Nago, Okinawaji- ma Island, Okinawa Group, Ryukyu Archipelago, Japan  
Reproduction 
TypesHolotype: CAS 21537; other specimens: KUZ, OMNH 
DiagnosisDiagnosis: An Ateuchosaurus species characterized by the following: usually fused FrNa and frontal; a pair of frontoparietals that do not contact each other; eight SuCis; anteroposteriorly reduced parietals separated from SuO and pretemporal by EcP; no distinct nuchals; usually six InLas; body size medium (SVL ca. 42–70 mm); widely separated forelimb and hindlimb when appressed; usually 26 or 28 MSRs (mode = 28, 25– 28); 54–64 (mode = 59) and 55–67 DMSs (mode = 58) in male and female, respectively; 10–16 TIVs (mode = 13); 10 preanals not enlarged; usually no black stripe on dorsal scale row or one pair of DSRBS; a karyotype of 2n = 28 (Ota et al. 1998). (Makino et al. 2023)


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CommentDistribution: see map in Makino et al. 2020 (Fig 1) and Makino et al. 2023: 78 (Fig. 1).

For more references see Makino et al. 2023.

Synonymy: OKADA 1939 synonymized Lygosoma okinavensis with Lygosaurus pellopleurus; Makino et al. 2023 revalidated okinavensis.

Reference images: see Uetz et al. 2024 for high-resolution reference images for this species. 
EtymologyNamed after the type locality. 
References
  • Barbour, T. 1917. A most regretable tangle of names. Occasional Papers of the Museum of Zoology, University of Michigan (44): 1-9 - get paper here
  • Barbour, Thomas 1909. Notes on Amphibia and Reptilia from Eastern Asia. Proc. New England zool. Club 4: 53-78, 2 plates - get paper here
  • Boettger, O. 1895. Neue Frösche und Schlangen von den Liukiu-Inseln. Offenbach. Ver. Naturk. 33-36: 101-117
  • Boulenger, G. A. 1887. Catalogue of the lizards in the British Museum (Nat. Hist.) III. Lacertidae, Gerrhosauridae, Scincidae, Anelytropsidae, Dibamidae, Chamaeleontidae. London: 575 pp. - get paper here
  • Goris, R.C. & Maeda, N. 2004. Guide to the Amphibians and Reptiles of Japan. Krieger, Malabar, 285 pp.
  • Hallowell, E. 1861. Report upon the Reptilia of the North Pacific Exploring Expedition, under command of Capt. John Rogers, U. S. N. Proc. Acad. Nat. Sci. Philadelphia 12 [1860]: 480 - 510 - get paper here
  • Makino T, Nakano T, Okamoto T, Hikida T 2023. Taxonomic revision and re-description of Ateuchosaurus pellopleurus (Hallowell, 1861) (Reptilia, Squamata, Scincidae) with resurrection of A. okinavensis (Thompson, 1912). Zoosystematics and Evolution 99(1): 77-91 - get paper here
  • Makino, T., Okamoto, T., Kurita, K., Nakano, T., & Hikida, T. 2020. Origin and intraspecific diversification of the scincid lizard Ateuchosaurus pellopleurus with implications for historical island biogeography of the Central Ryukyus of Japan. Zoologischer Anzeiger 288: 1-10 - get paper here
  • Nakamura, Yasuyuki, Akio Takahashi and Hidetoshi OTA. 2013. Recent cryptic extinction of squamate reptiles on Yoronjima Island of the Ryukyu Archipelago, Japan, inferred from garbage dump remains. Acta Herpetologica 8 (1): 19-34
  • Ota, Hidetoshi;Lin, Jun-Tsong;Bogadek, Anthony;Lau, Michael W. 1997. Karyotype of the lygosomine genus Ateuchosaurus from East Asia. Journal of Herpetology 31 (4): 604-607 - get paper here
  • Ota,H.; Miyaguni,H. & Hikida,T. 1999. Geographic variation in the endemic skink, Ateuchosaurus pellopleurus, from the Ryukyu Archipelago, Japan. Journal of Herpetology 33 (1): 106-118 - get paper here
  • Sclater, J.A. 1950. Bionomic notes on some reptiles form Okinawa Shima, Ryukyu Islands, Japan. Ann. Mag. Nat. Hist. (12) 3: 113-116 - get paper here
  • Smith, M.A. 1937. A review of the genus Lygosoma (Scincidae: Reptilia) and its allies. Records of the Indian Museum 39 (3): 213-234
  • Stejneger, LEONHARD H. 1907. Herpetology of Japan and adjacent territory. Bull. US Natl. Mus. 58: xx, 1-577 - get paper here
  • Thompson, J.C. 1912. Herpetological notices, No. 2. Prodrome of descriptions of new species of Reptilia and Batrachia from the Far East. Privately published, San Francisco.
  • Uetz, P.H.; Patel, M.; Gbadamosi, Z.; Nguyen, A.; Shoope, S. 2024. A Reference Database of Reptile Images. Taxonomy 4: 723–732 - get paper here
 
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