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Parvoscincus sisoni FERNER, BROWN & GREER, 1997

IUCN Red List - Parvoscincus sisoni - Vulnerable, VU
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Higher TaxaScincidae, Sphenomorphinae (Sphenomorphini), Scincoidea, Sauria, Squamata (lizards)
Subspecies 
Common Names 
SynonymParvoscincus sisoni FERNER, BROWN & GREER 1997: 188
Parvoscincus sisoni — BROWN et al. 1999
Parvoscincus sisoni — LINKEM, DIESMOS & BROWN 2011 
DistributionPhilippines (Panay)

Type locality: Philippines, Panay Island, Antique Province, Mt. Madj-as.  
Reproductionoviparous (not imputed, fide Zimin et al. 2022) 
TypesHolotype: PNM 2308 
DiagnosisDiagnosis (genus): Parvoscincus is diagnosed by the following combination of characters: (1) body size usually small (<55mm SVL) but larger in high-elevation species (46 mm < SVL < 86 mm); (2) four enlarged supraoculars; (3) paravertebral scales 51–110; (4) midbody scale rows 23–46; and (5) subdigital lamellae 10–20 [LINKEM, DIESMOS & BROWN 2011]. 
CommentType species: Parvoscincus sisoni FERNER, BROWN & GREER 1997 is the type species of the genus Parvoscincus FERNER, BROWN & GREER 1997.

Abundance: only known from its original description (Meiri et al. 2017). This is one of the species called 'lost' and 'rediscovered' by Lindken et al. 2024. 
EtymologyNamed after Rogelio V. Sison, a herpetologist who was a taxidermist at the Philippine National Museum and now teaches taxidermy. 
References
  • Beolens, Bo; Michael Watkins, and Michael Grayson 2011. The Eponym Dictionary of Reptiles. Johns Hopkins University Press, Baltimore, USA - get paper here
  • Brown, R.M. et al. 2010. Species boundaries in Philippine montane forest skinks (Genus Sphenomorphus): three new species from the mountains of Luzon and clarification of the status of the poorly known S. beyeri, S. knollmanae, and S. laterimaculatus. Scient. Pap. Nat. Hist. Mus. Univ. Kansas (42): 1-27
  • Brown, Rafe M., Jimmy A. McGuire, John W. Ferner and Angel C. Alcala 1999. New species of diminutive scincid lizard (Squamata: Lygosominae: Sphenomorphus) from Luzon Island, Republic of the Philippines. Copeia 1999 (2): 362-370 - get paper here
  • Ferner, John W., Rafe M. Brown, Rogelio V. Sison and Robert S. Kennedy 2000. The amphibians and reptiles of Panay Island, Philippines. Asiatic Herpetological Research 9: 1-37 - get paper here
  • Ferner,J.W., Brown,R.M. & Greer,A.E. 1997. A new genus and species of moist closed canopy forest skinks from the Philippines. Journal of Herpetology 31 (2): 187-192 - get paper here
  • Gaulke, M. 2011. The herpetofauna of Panay Island, Philippines. Edition Chimaira, 390 pp.
  • Gaulke, M. 2013. Abenteuerurlaub auf den Philippinen. Reptilia (Münster) 18 (100): 114-125 - 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
  • Linkem, Charles W.; Arvin C. Diesmos, Rafe M. Brown 2011. Molecular systematics of the Philippine forest skinks (Squamata: Scincidae: Sphenomorphus): testing morphological hypotheses of interspecific relationships. Zoological Journal of the Linnean Society 163: 1217–1243 - 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
  • 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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