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Cryptactites peringueyi (BOULENGER, 1910)

IUCN Red List - Cryptactites peringueyi - Data Deficient, DD

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Higher TaxaGekkonidae, Gekkota, Sauria, Squamata (lizards: geckos)
Common NamesE: Salt Marsh Gecko, Peringuey’s Coastal Leaf-Toed Gecko 
SynonymPhyllodactylus peringueyi BOULENGER 1910: 493
Phyllodactylus peringueyi — LOVERIDGE 1947: 240
Phyllodactylus peringueyi — WERMUTH 1965: 142
Phyllodactylus peringueyi — KLUGE 1993
Cryptactites peringueyi — BAUER et al. 1997
Cryptactites peringueyi — HEINICKE et al. 2014 
DistributionRepublic of South Africa (along the Kromme River estuary, near Port Elizabeth, Eastern Cape Province)

Type locality: Little Namaqualand and Chelsea Point, Port Elizabeth, Cape Province.  
TypesHolotype: SAM (South African Museum, Capetown) 
DiagnosisDefinition (genus). Cryptactites is distinguishable from all other geckos based on the following combination of characters: size small (28 mm max. SVL), with a relatively large but narrow head, a long, pointed snout, cylindrical body and round, tapering tail. Digits are free and bear a single pair of dilated terminal adhesive pads (‘leaf toes’); claws are pres- ent on all digits. Dorsal scalation with rows of prominent keeled tubercles. Preanal pores are absent; but two cloacal spurs are present (more prominent in males). The eye bears a vertical pupil with straight margins. The skull displays no co-ossification with the overlying skin. Nasals are fused; frontal single; parietals partly fused; stapes imperforate; 13–14 scleral ossicles; 12 premaxillary and fewer than 30 dentary teeth; hyoid with second ceratobranchial cartilages. There are 24 presacral vertebrae and two pairs of cloacal bones. The phalangeal formula is 2-3-4-5-3 (manus)/2-3-4- 5-4 (pes); paraphalangeal elements are absent.
Cryptactites peringueyi exhibits the following non- homoplastic apomorphic cranial characters: posterior point of jugal bone aligned with the lateral edge of squamosal instead of lateral border of the quadrate (124- 0); frontal bone compact, lacking extensive internal tra- becular bone (134-0); parabasisphenoid – basioccipital fenestra present (253-1, Fig. 22); fenestra ovalis located anterior to the sphenooccipital tubercle (255-1, Fig. 17); sphenooccipital tubercle located posteriorly resulting in a nearly vertically oriented crista tuberalis (271-0, Fig. 17); the splenial forms the wall of the Meckelian canal for more than two thirds the length of the dentary (333-0); articular without a deep fossa on the dorsal or dorsomedial surface of the retroarticular process (364-1); anterior mar- ginal teeth procumbent (380-1, Fig. 17).
Among the circum-Indian Ocean leaf-toed geckos, the presence of only 24 presacral vertebrae is unique. Reduc- tions below 25 presacrals are extremely rare in geckos (Wellborn, 1933; Hoffstetter & Gasc, 1969) and have been otherwise confirmed only in Rhoptropus afer among the members of the broader Afro-Malagasy clade to which these leaf-toed geckos belong (Bauer et al., 1996). Cryptactites can be readily distinguished from all other circum-Indian Ocean leaf-toed geckos and all additional leaf-toed genera in Africa based on its minute size and rugose dorsal scalation [HEINICKE et al. 2014]. 
CommentDistribution: The single record for Namaqualand is almost certainly in error.

Type Species: Phyllodactylus peringueyi BOULENGER 1910 is the type species of the genus Cryptactites BAUER, GOOD & BRANCH 1997. 
EtymologyNamed after Dr. Louis Albert Peringuey (1855-1924), a French entomologist and naturalist. 
  • Barts, M. 2021. Geckos aus dem südlichen Afrika. DATZ 2021 (5): 24-34
  • Bates, M.F.; Branch, W.R., Bauer, A.M.; Burger, M., Marais, J.; Alexander, G.J. & de Villliers, M.S. (eds.) 2014. Atlas and Red List of the Reptiles of South Africa, Lesotho, and Swaziland. Suricata 1. South African National Biodiversity Institute, Pretoria, 512 pp.
  • Bauer A M. Good D A. Branch W R. 1997. The taxonomy of the Southern African leaf-toed geckos (Squamata: Gekkonidae), with a review of Old World "Phyllodactylus" and the description of five new genera. Proc. Cal. Acad. Sci. 49 (14): 447-497. - get paper here
  • Bauer, Aaron M. 1997. Family Gekkonidae. Genus Phyllodactylus. In: J. H. van Wyk (ed.): Proceedings of the Fitzsimons Commemorative Symposium, South African Lizards: 50 years of Progress. - Herp. Assoc. Africa (Matieland, South Afr.), pp. 24-28
  • Beolens, Bo; Michael Watkins, and Michael Grayson 2011. The Eponym Dictionary of Reptiles. Johns Hopkins University Press, Baltimore, USA - get paper here
  • Boulenger, G.A. 1910. A revised list of the South African reptiles and batrachians, with synoptic tables, special reference to the specimens in the South African Museum, and descriptions of new species. Annals of the South African Museum 5: 455-543 - get paper here
  • Branch, B.R.; Bauer, A.M. 1992. The Status of Phyllodactylus peringueyi. J. Herp. Assoc. Africa (40): 21-21 - get paper here
  • Branch, W. R. & A. M. BAUER 1994. Phyllodactylus peringueyi (Reptilia, Gekkonidae) its taxonomic history, rediscovery, and phylogenetic affinities. Annals of the South African Museum 104 (2): 13-30.
  • Branch, W.B. 1996. Correction of the type Locality of Phyllodactylus peringueyi. African Herp News (25): 34-35 - get paper here
  • Branch, William R. 1993. A Photographic Guide to Snakes and Other Reptiles of Southern Africa. Cape Town: Struik Publishers, 144 S.
  • Branch, William R. & Bauer, Aaron M. 1992. The Status of Phyllodactylus peringueyi (Reptilia: Gekkonidae). Journal of the Herpetological Association of Africa (Proceedings of the Second H.A.A. Conference, Editors: Branch, William R.; Haagner, Gerald V. & Boycott, Richard C.) (Humewood), 40: 21. - get paper here
  • Haagner, G.V.; Branch, W.R.; Burger, M. 1996. Life History Notes - Phyllodactylus peringueyi. African Herp News (25): 37-38 - get paper here
  • Heinicke, Matthew P.; Juan D. Daza, Eli Greenbaum, Todd R. Jackman & Aaron M. Bauer 2014. Phylogeny, taxonomy and biogeography of a circum-Indian Ocean clade of leaf-toed geckos (Reptilia: Gekkota), with a description of two new genera. Systematics and Biodiversity 12 (1): 23-42, DOI:10.1080/14772000.2013.877999 - get paper here
  • Loveridge, A. 1947. Revision of the African lizards of the family Gekkondiae. Bull. Mus. Comp. Zool. Harvard 98: 1-469 - get paper here
  • Nicolau, Gary Kyle; Melissa Petford, Shelley Edwards, Theo Busschau, Keir Lynch, Luke Kemp, Jonathan Balmer, Chad Keates, Courtney R. Hundermark, Joshua Weeber, Werner Conradie 2021. New insights into the geographical distribution, ecology and conservation status of South Africa’s endemic Coastal Leaf-toed Gecko, Cryptactites peringueyi (Boulenger, 1910). Herpetology Notes 14: 439-450 - get paper here
  • Wermuth, H. 1965. Liste der rezenten Amphibien und Reptilien. Gekkonidae, Pygopodidae, Xantusiidae. Das Tierreich (80): 1—246
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