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Lygosoma singha (TAYLOR, 1950)

IUCN Red List - Lygosoma singha - Data Deficient, DD

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Higher TaxaScincidae, Lygosominae (Lygosomini), Scincoidea, Sauria, Squamata (lizards)
Subspecies 
Common Names 
SynonymRiopa singhum TAYLOR 1950: 494
Riopa singha — TAYLOR 1953
Lygosoma singha — DAS 1996: 46
Lygosoma singha — SOMAWEERA & SOMAWEERA 2009
Lygosoma singhum — GANESH 2017 
DistributionSri Lanka

Type locality: Trincomali, Sri Lanka  
Reproductionoviparous (not imputed, fide Zimin et al. 2022) 
TypesHolotype: USNM 29411 
DiagnosisDiagnosis: A species related to Riopa albopunctatum; four very narrow dorsal lines on middle of back; wide dorsolateral cream lines begin at supraoculars; below dorsolateral light line an irregular dark stripe not of solid color, widest at neck and above arm and axillary region tending to form four, fine, broken, dark lines posteriorly. On this dark stripe vertical series of white dots alternating with darker spots, these often somewhat irregular. Scale rows around body, 28; a transparent eye disk present; 70 scales on back between nuchals and a point above vent; snout to arm insertion length contained in axilla to groin length 2½ times; adpressed limbs separated by a distance equal to one and a half to one and two thirds length of arm. (Taylor 1950: 494)


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CommentAbundance: only known from the type locality (Meiri et al. 2017). This is one of the species called 'lost' and 'rediscovered' by Lindken et al. 2024. 
EtymologyNot given by Taylor 1950, but possibly named after Vijaya (Singha), the first of the approximately 189 monarchs of Sri Lanka. 
References
  • Ganesh, S.R. 2017. On the poorly-known White-spotted Skink Lygosoma albopunctatum (Gray, 1846) (Reptilia: Scincidae) with further topotypical records and notes on the type locality. JoTT 9 (9): 10662–10668 - get paper here
  • Lindken T.; Anderson, C. V., Ariano-Sánchez, D., Barki, G., Biggs, C., Bowles, P., Chaitanya, R., Cronin, D. T., Jähnig, S. C., Jeschke, J. M., Kennerley, R. J., Lacher, T. E. Jr., Luedtke, J. A., Liu, C., Long, B., Mallon, D., Martin, G. M., Meiri, 2024. What factors influence the rediscovery of lost tetrapod species? Global Change Biology, 30: 1-18 - get paper here
  • Meiri, Shai; Aaron M. Bauer, Allen Allison, Fernando Castro-Herrera, Laurent Chirio, Guarino Colli, Indraneil Das, Tiffany M. Doan, Frank Glaw, Lee L. Grismer, Marinus Hoogmoed, Fred Kraus, Matthew LeBreton, Danny Meirte, Zoltán T. Nagy, Cristiano d 2017. Extinct, obscure or imaginary: the lizard species with the smallest ranges. Diversity and Distributions - get paper here
  • Somaweera, R. & Somaweera, N. 2009. Lizards of Sri Lanka: a colour guide with field keys. Chimaira, Frankfurt, 304 pp.
  • Taylor, E.H. 1953. A review of the lizards of Ceylon. Univ. Kansas Sci. Bull. 35 (12): 1525-1585 - get paper here
  • Taylor, Edward H. 1950. Ceylones lizards of the family Scincidae. Univ. Kansas Sci. Bull. 33 (2): 481-518 - get paper here
  • Ziesmann, S.; Klaas, P.& Janzen, P. 2007. Von Skinken und anderen Echsen [Sri Lankas]. Draco 7 (30): 18-23 - get paper here
  • Zimin, A., Zimin, S. V., Shine, R., Avila, L., Bauer, A., Böhm, M., Brown, R., Barki, G., de Oliveira Caetano, G. H., Castro Herrera, F., Chapple, D. G., Chirio, L., Colli, G. R., Doan, T. M., Glaw, F., Grismer, L. L., Itescu, Y., Kraus, F., LeBreton 2022. A global analysis of viviparity in squamates highlights its prevalence in cold climates. Global Ecology and Biogeography, 00, 1–16 - get paper here
 
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