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Bavayia sauvagii (BOULENGER, 1883)

IUCN Red List - Bavayia sauvagii - Data Deficient, DD

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Higher TaxaDiplodactylidae, Gekkota, Sauria, Squamata (lizards: geckos)
Common NamesE: Sauvage's New Caledonian Gecko 
SynonymLepidodactylus sauvagii BOULENGER 1883: 122
Hemidactylus cyclura — SAUVAGE 1879 (part.)
Lepidodactylus sauvagii — BOULENGER 1885: 168
Bavayia sauvagei — ROUX 1913
Bavaya [sic] sauvagei — UNDERWOOD 1954
Bavayia sauvagi — BROWN 1956
Bavayia sauvagii — SADLIER 1989
Bavayia sauvagii — RÖSLER 2000: 60
Bavayia sauvagii — BAUER et al. 2012
Bavayia cf. sauvagii — LANGNER & SCHÖNECKER 2018
Bavayia sauvagii — BAUER et al. 2022: 17 
DistributionNew Caledonia, Loyalty Islands (Maré)

Type locality: New Caledonia. Neotype locality: "Mt. Koghis, Province Sud," New Caledonia [22°10'43"S, 166°30'20"E]  
TypesNeotype: MNHN-RA 1998.0605* (formerly AMS R.146526), coll. R.A. Sadlier, January 1995, designation by Wright, Bauer and Sadlier (2000:41). Former holotype: MNHN-RA 5790 (fide Boulenger 1883: 122) but not listed by Guibé 1954; presented by E. Deyrolle, 8.v.1879, see comment. 
DiagnosisDefinition (sauvagii clade): Members of the B. sauvagii Clade are distinguished from other B. sauvagii Group taxa by their intermediate body size (maximum 45-60 mm SVL vs. 72 mm in B. geitaina) and the placement of the claw of digit I of the manus and pes lateral to a single medial apical scansor (vs. between a much larger medial and a much smaller lateral scansor in the B. pulchella, B. exsuccida, and B. geitaina Clades). Males possess a single row of precloacal pores (with a single pore in a second row reported for one individual, see B. loyaltiensis) with 15-27 pores (rarely fewer). Tail length <105% SVL, with 6-7 dorsal scale rows per tail whorl (vs. 9 in B. geitaina). The dorsum typically bears a pattern of four (rarely five) dark transverse markings between limb insertions (vs. typically five or more in B. geitaina). These geckos are most similar in general appearance to members of the B. centralis Clade but are generally smaller and more commonly maintain unfragmented dark dorsal pattern elements. (Bauer et al. 2022)

Diagnosis: Bavayia sauvagii is a large member of the Bavayia sauvagii Clade (maximum 60 mm SVL), characterized by its relatively short, depressed body and short tail (to 102% SVL); digits IV relatively narrow; 6-12 (usually >10) relatively slender lamellae beneath digit IV of hindfoot; claw of digit of manus and pes borne lateral to a single medial apical scansor. Single row of 7-23 precloacal pores (usually >12, with individuals from Mt. Mou having lower counts); relatively high number of cloacal spur scales. Dorsal pattern typically with four largely symmetrical, well demarcated, thin to moderately thick, dark, transverse markings between the limb insertions, and pale head dorsum with a pair of pale, often ill-defined nape stripes; flanks with whitish punctations or spots. Tail usually with pale dorsal markings longer than dark interspaces (here and in all following Diagnoses and Descriptions refer to Fig. 3 for color pattern elements). Among its own clade members B. sauvagi is distinguished by its larger size (to 60 mm SVL vs. 52 mm or less) and from B. loyaltiensis by its lack of a distinctly differentiated precloacal pore row and its lower number of cloacal spur scales (maximum 6 vs. 8). From B. campestris sp. nov. and B. kunyie sp. nov. it differs in its greater number of cloacal spur scales (6 vs. 4) and in having pale dorsal tail blotches longer than dark interspaces (vs. dark interspaces usually as long or longer than pale blotches). (Bauer et al. 2022) 
CommentTypes: "The holotype of Lepidodactylus sauvagii appears to be conspecific with Bavayia cyclura, although the description is clearly appropriate to B. sauvagii as presently construed" (Bauer 1994).

Abundance: Common and fairly widespread.

Distribution: see map in Bauer et al. 2022: 20 (Fig. 7).

Group: B. sauvagii group (sauvagii, campestris, kunyie, loyaltiensis) 
EtymologyNamed after Dr. Henri-Emile Sauvage (1844-1917), a French paleontologist, herpetologist, and ichthyologist. 
  • Bauer, A. M. & SADLIER, R. A. 2000. The herpetofauna of New Caledonia. Contributions to Herpetology, 17; Society for Study Amphibians and Reptiles, Ithaca, New York.
  • Bauer, A.M. 1994. Liste der rezenten Amphibien und Reptilien: Gekkonidae I (Australia). Das Tierreich, Vol. 108, W. de Gruyter & Co. (Berlin)
  • Bauer, A.M. & Sadlier,R.A. 1993. Systematics, biogeography and conservation of the lizards of New Caledonia. Biodiv. Lett. 1: 107-122 - get paper here
  • BAUER, AARON M.; TODD R. JACKMAN, ROSS A. SADLIER & ANTHONY H. WHITAKER 2012. Revision of the giant geckos of New Caledonia (Reptilia: Diplodactylidae: Rhacodactylus). Zootaxa 3404: 1–52 - get paper here
  • Bauer, Aaron M.;Sadlier, Roass A. 1994. The terrestrial herpetofauna of the Ile des Pins, New Caledonia. Pacific Science 48 (4): 353-366
  • 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. 1883. On the geckos of New Caledonia. Proc. Zool. Soc. London 1883: 116—130. - get paper here
  • Boulenger, G.A. 1885. Catalogue of the lizards in the British Museum (Nat. Hist.) I. Geckonidae, Eublepharidae, Uroplatidae, Pygopodidae, Agamidae. London: 450 pp. - get paper here
  • Burt, Charles E.; Burt, May Danheim 1932. Herpetological results of the Whitney South Sea Expedition. VI. Pacific island amphibians and reptiles in the collection of the American Museum of Natural History. Bull. Amer. Mus. Nat. Hist. 63 (5): 461-597 - get paper here
  • DUVAL, Thomas; Stéphane ASTRONGATT & Mickaël SANCHEZ 2019. Inventaire herpétologique de la forêt de Povila (province Nord, Nouvelle-Calédonie), avec une comparaison des protocoles de détection. Bull. Soc. Herp. Fr. 171: 13-36
  • Kramer, Eugen 1979. Typenkatalog der Echsen im Naturhistorischen Museum Basel (BM), Stand 1978. [type catalogue] Revue Suisse de Zoologie 86 (1): 159-166 - get paper here
  • Langner, Christian & Patrick Schönecker 2018. Pacific Lost World – die weniger bekannte, gefährdete Geckofauna Neukaledoniens. Terraria-Elaphe 2018 (1): 14-26 [2017] - get paper here
  • Rösler, H. 2000. Kommentierte Liste der rezent, subrezent und fossil bekannten Geckotaxa (Reptilia: Gekkonomorpha). Gekkota 2: 28-153
  • Sadlier R A. Bauer A M. 1997. The terrestrial herpetofauna of the Loyalty Islands. Pacific Science 51 (1): 76-90.
  • Wright,J.L., Bauer, A.M. & Sadlier, R.A. 2000. Two new gecko species allied to Bavayia sauvagii and Bavayia cyclura (Reptilia: Diplodactylidae) from New Caledonia. Pacific Science 54: 39-55
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