Cyrtodactylus dayangbuntingensis QUAH, GRISMER, WOOD JR & SAH, 2019
Can you confirm these amateur observations of Cyrtodactylus dayangbuntingensis?
|Higher Taxa||Gekkonidae, Gekkota, Sauria, Squamata (lizards: geckos)|
|Synonym||Cyrtodactylus dayangbuntingensis QUAH, GRISMER, WOOD JR & SAH 2019|
|Distribution||Peninsular Malaysia (Dayang Bunting Island, Langkawi Archipelago)|
Type locality: along a trail to Dayang Bunting Lake, Dayang Bunting Island, Langkawi Archipelago, Kedah, Peninsular Malaysia (6°12’28.1”N 99°47’02.8”E; 18 m elevation
|Types||Holotype: LSUHC 14353, Adult male, collected on 24 July 2018 at 2030 hrs by Evan S.H. Quah. (Fig. 4A in Quah et al. 2019).|
Paratypes (Fig. 4B & C). Adult male, LSUHC 14354 and sub-adult female, LSUHC 14355 bear the same col- lection data as the holotype.
|Diagnosis||Diagnosis. Cyrtodactylus dayangbuntingensis sp. nov. can be differentiated from all other species of Cyrto- dactylus by having a combination of the following characters: maximum SVL of approximately 99.00 mm; 12–14 supralabials; 10–11 infralabials; weak tuberculation on body; no tubercles on ventral surface of forelimbs, gular region, ventrolateral body folds, or anterior one-third of tail; 35 or 36 paravertebral tubercles; 20–22 longitudinal dorsal tubercle rows; 36–39 ventral scales; 21–23 subdigital lamellae on fourth toe; 26–29 femoroprecloacal pores; deep precloacal groove in males; up to three rows of small to medium-sized postcloacal (hemipenial) tubercles with a (1–3 + 2–4 + 2–4) range of tubercles per row; four dark dorsal body bands; body bands slightly narrower than interspaces; no rostral chevron; body bands and nuchal loop edged by a broken, thin white or yellow line formed by a single row of tubercles; scattered white tubercles present on dorsum; no banding on base of thigh; up to ap- proximately 13 dark caudal bands on original tail; white caudal bands infused with dark pigmentation in adults; and hatchlings and juveniles bearing white tail tips. These characters are scored across all species of the C. pulchellus complex in Table 7 in Quah et al. 2019.|
Comparison. Cyrtodactylus dayangbuntingensis sp. nov. can be differentiated from all other species of the C. pulchellus complex by having a combination of low, rounded body tubercles; no tubercles on ventral surfaces of forelimbs, gular region or in the ventrolateral body folds; 12–14 supralabials; 35 or 36 paravertebral tubercles; 20–22 longitudinal rows of dorsal tubercles; 36–39 ventral scales; 21–23 subdigital lamellae on the 4th toe; 26–29 femoroprecloacal pores; a deep precloacal groove; four body bands that are slightly narrower than the width of the interspace; juveniles with white tail tips; white caudal bands of adults infused with dark pigment; and white, cream or light-yellow tubercles scattered on dorsum. Cyrtodactylus dayangbuntingensis sp. nov. has the highest number of postcloacal (hemipenial) tubercle rows of any species within the C. pulchellus complex, with up to three rows with a (1–3 + 2–4 + 2–4) range of tubercles per row (Fig. 6A,B,C; Table 7 & 8). Other diagnostic characters that separate C. dayangbuntingensis sp. nov. from the other species of the C. pulchellus complex are summarized in Table 7. Within the C. pulchellus complex, C. dayangbuntingensis sp. nov. is part of the northern karst clade along with C. astrum, C. langkawiensis and C. lekaguli. All four species can be differentiated by differences in a number of their meristic data (Table 8). Cyrtodactylus dayangbuntingensis sp. nov. can be differentiated from C. lekaguli by the presence of scattered white tubercles on the dorsum, fewer femoroprecloacal pores (26–29 versus 33–36), the ratio of the width of dark body bands being narrower than light-colored interspaces (0.75 versus 1.00–2.00), and smaller maximum SVL (99.0 mm versus 103.5 mm). From C. astrum it can be distinguished by having fewer paravertebral tubercles (35–36 versus 40–57), fewer femoroprecloacal pores (26–29 versus 31–38), the dark body bands being narrower than light-colored interspaces (0.75 versus 1.00–2.00) and smaller maximum SVL (99.0 versus 108.1). Cyrtodactylus dayangbuntingensis sp. nov. most closely resembles C. langkawiensis but can be dif- ferentiated from it by having more supralabials (12–14 versus 9–12), more infralabials (10–11 versus 8–10), and fewer femoroprecloacal pores (26–29 versus 30 in single male) (Table 4, 7 & 8). From C. macrotuberculatus, which is also found in the Langkawi Archipelago, C. dayangbuntingensis sp. nov. is differentiated by having weak as op- posed to very prominent body tubercles; an absence of tubercles on the gular region, ventral surface of forelimbs, and ventrolateral fold; higher number of ventral scales (36–39 versus 17–28), and the presence of scattered white tubercles on the dorsum.
|Comment||Habitat: proximity of karst outcrops|
|Etymology||The specific epithet dayangbuntingensis is in reference to the type locality of this species on Dayang Bunting Island of the Langkawi Archipelago, Kedah, Peninsular Malaysia.|
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