Ctenotus duricola STORR, 1975
Can you confirm these amateur observations of Ctenotus duricola?
|Higher Taxa||Scincidae, Sphenomorphinae (Sphenomorphini), Scincoidea, Sauria, Squamata (lizards)|
|Common Names||E: Eastern Pilbara Lined Ctenotus, Pilbara Ctenotus|
|Synonym||Ctenotus piankai duricola STORR 1975: 239|
Ctenotus duricola — STORR et al. 1999
Ctenotus piankai duricola — COGGER 2000: 437
Ctenotus duricola — WILSON & SWAN 2010: 188
Ctenotus duricola — COGGER 2014: 492
Ctenotus duricola — RABOSKY et al. 2017
|Distribution||Australia (coast and hinterland of NW Western Australia)|
Type locality: Mt Edgar, Western Australia, in 21°19' S, 120° 02' E.
|Reproduction||oviparous (not imputed, fide Zimin et al. 2022)|
|Types||Holotype: WAM R17163, from Mt. Edgar, in 21° 19’ S, 120° 02’ E, W. A.|
|Diagnosis||Diagnosis: A small-bodied (to 59 mm SVL), elongate Ctenotus, nasals in contact, prefrontals in contact or not in contact, 26–29 mid-body scale rows, 20–25 compressed lamellae under toes with narrow callus, usually eight supralabials and supraciliary scales; pattern simple and full including six (occasionally eight) pale narrow longitudinal stripes on a blackish-brown ground color, dorsal stripes not continuing on head to snout, tail not red or blue, absence of upper lateral row of spots between dorsolateral and lateral stripes, dark vertebral stripe continues to anterior-most nuchal or parietal, parietals without blotches or spots, pale dorsolateral stripe continues anteriorly to eye, pale paravertebral stripes join on tail anterior to level of heel of extended hindlimb, lower labial scales variably stippled [Rabosky et la. 2017].|
Diagnosis: A member of the taeniolatus group with 6 or 8 pale stripes, distinguishable from C. p. piankai by more numerous midbody scale rows and preference for hard, stony country rather than sandy country [STORR 1975].
When C. duricola was originally described as a subspecies of C. piankai, it was distinguished from the nominate subspecies by its more numerous midbody scale rows (28–31 [duricola] vs. 24–27 [piankai]) and by its habitat preference (hard, stony landscapes vs. sandy country; Storr 1975).
Description: Storr 1975: 239.
|Comment||These forms have been recognized as full species, first by Storr et al. (1981), without comment, and later adopted in some field guides (Wilson & Knowles 1988; Ehmann 1992; Wilson & Swan 2003, 2014; Cogger 2014), but not others (Cogger 1992, 2000)|
Habitat. Occurs on rocky slopes with spinifex and associated colluvial surfaces in the Pilbara, including mulga woodlands.
Distribution: This species is now confined to the eastern Pilbara region. The pattern of allopatric replacement of C. duricola with C. pallasotus sp. nov. within the Pilbara region corresponds to the supposition of Pepper et al. (2013) that the Fortescue River system provides a major biogeographic break within the region that can potentially drive allopatric speciation [Rabosky et al. 2017]. See map in Singhal et al. 2022: Fig. 2.
Limb morphology: 5 digits, 5 toes (Singhal et al. 2018, Cogger 2014)
|Etymology||The specific name is from the Latin durus, meaning hard, and the suffix -cola, meaning to inhabit, in reference to this species occurrence and presumed preference for the hard surfaces of the Pilbara region.|