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Cyrtodactylus klakahensis HARTMANN, MECKE, KIECKBUSCH, MADER & KAISER, 2016

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Higher TaxaGekkonidae, Gekkota, Sauria, Squamata (lizards: geckos) 
Subspecies 
Common NamesE: Klakah bent-toed gecko
G: Klakah Bogenfinger-Gecko 
SynonymCyrtodactylus klakahensis HARTMANN, MECKE, KIECKBUSCH, MADER & KAISER 2016
Cyrtodactylus fumosus — MERTENS 1934: 689
Cyrtodactylus klakahensis — MECKE et al. 2016 
DistributionIndonesia (Java)

Type locality: Klakah, Lumajang Regency, Jawa Timur Province, Java, Indonesia  
Reproduction 
TypesHolotype. SMF 22476 (Figures 1 & 3A–C; Table 2 in Hartmann et al. 2016), an adult male, collected in 1928 or 1929 by members of the Deutsche Limnologische Sunda-Expedition.
Paratypes. SMF 22477 (Figure 2A; Table 2), an adult male; SMF 22478 (Figure 2B; Table 2), an adult female; and SMF 22479 (Figure 2C; Table 2), an unsexed juvenile. All specimens have the same collection information as the holotype. 
CommentDiagnosis: Cyrtodactylus klakahensis can be distinguished from all other congeners occuring in the Greater Sunda Islands (including Sulawesi) and Lesser Sunda Islands by the following combination of characters: (1) a deep precloacal groove in males, (2) three rows of enlarged precloacofemoral scales, of which the third row bears 37–38 pores in males, (3) three or four rows of posterior precloacal scales, (4) raised and strongly keeled dorsal tubercles in 15–19 rows at midbody, (5) an indistinct lateral fold, (6) 17–20 subdigital lamellae under the 4th toe, and (7) subcaudal scales which are not transversely enlarged.

Comparison with other species. The new species can be readily distinguished from the Greater Sunda Island congeners Cyrtodactylus batik Iskandar et al., 2011, C. consobrinus (Peters, 1871), C. ingeri Hikida, 1990, C. jellesmae (Boulenger, 1897), C. lateralis (Werner, 1896), C. malayanus (de Rooij, 1915), C. matsuii Hikida, 1990, C. semiadii Riyanto et al., 2014, C. quadrivirgatus Taylor, 1962, C. wallacei Hayden et al., 2008, and C. yoshii Hikida, 1990, and from the Lesser Sunda Island species C. darmandvillei (Weber, 1890), C. gordongekkoi (Das, 1993), C. laevigatus Darevsky, 1964, and C. wetariensis (Dunn, 1927) by the presence of a deep precloacal groove in males, bearing five pores. Data in Table 3 allow a detailed comparison of C. klakahensis with all other Sundanese bent-toed geckos, and additional characters to distinguish the new species from taxa without a precloacal groove are listed therein.
In the following comparisons with species that also possess a precloacal groove, including Cyrtodactylus agamensis (Bleeker, 1860), C. baluensis (Mocquard, 1890), C. cavernicolus Inger & King, 1961, C. celatus Kathriner et al., 2014, C. fumosus, C. marmoratus, C. psarops Harvey et al. 2015, C. pubisulcus Inger, 1958, C. semicinctus Harvey et al. 2015, and C. spinosus Linkem et al., 2008, the characters for C. klakahensis are provided in parentheses. Cyrtodactylus agamensis (data from Rösler et al. 2007, based on the single known specimen, an adult female) possesses 67 (35–38) VS; 26 (17–20) LT4; 54 enlarged PFS (38–40); and a single enlarged scale in the precloacal groove (five scales in the precloacal groove). Cyrtodactylus baluensis (data from Hikida 1990 and
obtained from specimens listed in the Appendix) possesses precloacal scales that are separated from the femoral scales (enlarged PFS in both sexes); 4–10 precloacal- and 9–11 femoral pores in males (37–38 PFP in a continuous series in males); no posterior precloacal scales (posterior precloacal scales present); and enlarged subcaudals (enlarged subcaudals absent). Cyrtodactylus cavernicolus (data from Grismer & Leong 2005) possesses 51–58 (35–38) VS; 22–26 (17–20) LT4; no enlarged femoral scales (enlarged PFS in three rows present in both sexes); no femoral pores (pores, including those on the femur, present in males); and dorsal bands (dorsal blotches). Cyrtodactylus celatus (data from Kathriner et al. 2014; Rösler & Kaiser, in press.; and obtained from specimens listed in the Appendix) is a small-sized species with adult SVL of 38.4−43.6 mm (61.1−68.1 mm) that possesses no femoral pores (pores, including those on the femur, present in males). Cyrtodactylus fumosus (data obtained from specimens listed in the Appendix) possesses widely scattered, roundish, flat, and smooth dorsal tubercles in 4–7 rows at midbody (closely arranged, trihedral, raised, and strongly keeled dorsal tubercles in 15–19 rows at midbody); no or a low number of scattered tubercles on the limbs (limbs strongly tuberculated); a total number of 16 pores, ten of which are precloacal pores, separated from three femoral pores by ten enlarged pore-less scales1 in males (37–38 PFP in a continuous series in males); and an ear opening forming a horizontal cleft2 (ear opening vertically elongated). Cyrtodactylus marmoratus (data from Rösler et al. 2007 and obtained from specimens listed in the Appendix) possesses 38–47 (35–38) VS; 48–563 (38–40) enlarged PFS; 45–534 (37–38) PFP in males; and pores present in females (no pores present in females). Based on our examinations, C. marmoratus also lacks posterior precloacal scales (posterior precloacal scales present), possesses a different arrangement of postmental and gular scales, and has differently shaped postcloacal tubercles. The reader is referred to Figure 3 for a comparison of the shape and arrangement of dorsal tubercles at midbody, the precloacal region in males, and the postmental and gular scale pattern between C. klakahensis, C. fumosus, and C. marmoratus. Cyrtodactylus psarops possesses weakly keeled dorsal tubercles in 23–26 rows at midbody (strongly keeled tubercles in 15–19 rows at midbody); tubercles often present on the brachium (tubercles on brachium absent); 38–49 (35–38) VS; 28–32 (37– 38) PFP in males; a single, greatly enlarged, pore-bearing scale at the apex of the pore-bearing scale series (apical scale of pore-series not greatly enlarged); no posterior precloacal scales (posterior precloacal scales present); and a single (2–3) PCT. Cyrtodactylus pubisulcus (data from Hikida 1990; Das & Jim 2000; and obtained from specimens listed in the Appendix) possesses 37–58 (35–38) VS; no enlarged femoral scales (enlarged PFS present); no femoral pores (pores, including those on the femur, present in males); and no posterior precloacal scales (precloacal scales present). Cyrtodactylus semicinctus possesses weakly keeled dorsal tubercles in 24–27 rows at midbody (strongly keeled tubercles in 15–19 rows at midbody); and a single, greatly enlarged, pore-bearing scale at apex of the pore-bearing scale series (apical scale of pore-series not greatly enlarged). Cyrtodactylus spinosus (data from Linkem et al. 2008) possesses 38–445 (35–38) VS; no femoral pores (pores, including those on the femur, present in males); and lateral and caudal spines (lateral and caudal spines absent). 
EtymologyThe specific epithet is a Latinized, toponymic adjective referring to the type locality Klakah (Lumajang Regency, Jawa Timur Province, Java, Indonesia) of the new species. 
References
  • HARTMANN, LUKAS; SVEN MECKE, MAX KIECKBUSCH, FELIX MADER, HINRICH KAISER 2016. A new species of bent-toed gecko, genus Cyrtodactylus Gray, 1827 (Reptilia: Squamata: Gekkonidae), from Jawa Timur Province, Java, Indonesia, with taxonomic remarks on C. fumosus (Müller, 1895). Zootaxa 4067 (5): 552–568 - get paper here
  • MECKE, SVEN; MAX KIECKBUSCH, LUKAS HARTMANN, HINRICH KAISER 2016. Historical considerations and comments on the type series of Cyrtodactylus marmoratus Gray, 1831, with an updated comparative table for the bent-toed geckos of the Sunda Islands and Sulawesi. Zootaxa 4175 (4): 353–365
  • Mertens, R. 1934. Die Amphibien und Reptilien der Deutschen Limnologischen Sunda-Expedition. In: Thienemann- Festband, A. (Ed.), Tropische Binnengewässer. Archiv für Hydrobiologie 40: 677–701
 
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