Chondrodactylus fitzsimonsi (LOVERIDGE, 1947)
Can you confirm these amateur observations of Chondrodactylus fitzsimonsi?
|Higher Taxa||Gekkonidae, Gekkota, Sauria, Squamata (lizards: geckos)|
|Common Names||E: Button-scaled Gecko, Fitzsimons’ Thick-toed gecko|
|Synonym||Pachydactylus laevigatus tesselatus FITZSIMONS 1938: 172|
Pachydactylus laevigatus fitzsimonsi LOVERIDGE 1947: 400 (nom. nov.)
Pachydactylus laevigatus fitzsimonsi — WERMUTH 1965: 119
Pachydactylus fitzsimonsi — BENYR 1995: 50
Pachydactylus laevigatus fitzsimonsi — BAUER et al. 1995
Pachydactylus fitzsimonsi — BRANCH 1998: 255
Pachydactylus fitzsimonsi —BAUER et al. 2000
Pachydactylus fitzsimonsi — RÖSLER 2000: 98
Chondrodactylus fitzsimonsi — BAUER & LAMB 2005
Chondrodactylus fitzsimonsi — MARQUES et al. 2018
Chondrodactylus fitzsimonsi — HEINZ et al. 2021: 180
Condrodactylus fitzsimonsi — LOBÓN-ROVIRA et al. 2022 (in error)
|Distribution||SW Africa, Angola,Namibia (Kunene Region, Khorixas District).|
Type locality: Kamanyab [= Kamanjab], Namibia.
laevigatus tesselatus: Type locality: Kamanjab (Namibia).
|Types||Holotype: DNMNH (= TM) 17202, adult, (collector V. F. M. FitzSimons).|
|Diagnosis||Diagnosis. A moderate-sized Chondrodactylus (SVL to 89.3 mm SVL; CAS 176273; Bauer et al., 1993) bearing prominent subdigital lamellae. Body robust, somewhat depressed; head large, triangular, very broad across adductor musculature and angle of jaws (approximately as broad as long), snout moderately elongate, rounded (Fig. 5C), canthus rostralis relatively prominent, interorbital region weakly concave. Crown of head wide, flat; parietal table rectangular. Chin and gular scales enlarged, juxtaposed, either rounded or polygonal, a row of 5 chin scales approximately twice the width of a paravertebral dorsal tubercle (Fig. 7C). Dorsal head scales large, flattened (chiefly in midline) weakly domed (laterally), never keeled, larger on loreal region than on crown, largest above ears and across occiput. Anterior margin of ear bearing 3–4 enlarged conical tubercles. No discrete rows of enlarged dorsal tubercles. Dorsal scales large, heterogeneous in size, flat, and juxtaposed, rounded to polygonal, in some cases forming a virtual pavement of juxtaposed scales; interstitial granules absent or rare in northern specimens. Dorsal scales rounded, slightly raised but flat-topped in southern populations, never bearing a keel or mucro; interstitial granules often present (Fig. 6C). Scales on thighs flattened to weakly conical, smooth, not keeled or mucronate. Tail weakly (Fig. 11C) to strongly (Fig. 11D) verticillate, each whorl at tail-base bearing six enlarged conical (dorsal) to mucronate (lateral) tubercles, less prominent than in congeners; tubercles per whorl decreasing distally (Heinz et al. 2021).|
Coloration: Dorsal coloration either dark, with almost black cross-barring or pale, oatmeal-colored with darker dorsal markings. Typically with a dark band on nape ventrolaterally coalescent (or nearly so) with a wide band across shoulders, the space between enclosing a lighter brown area. Additional broad bands at midbody, above mid-abdomen, and across hips, posterior border of each band darkest, anterior border from bold to diffuse, intermediate area paler; in some specimens only the dark posterior borders of these markings remain in adults. Small dark spots present or absent within pale spaces between body bands. White scales, when present, adjacent to darkest posterior borders of dorsal bands. Tail with alternating light and dark bands. Light bands moreor-less uniform; dark bands with bold anterior and especially posterior borders and fading to intermediate brown centrally. Approximately 7–8 dark bands on original tails. Pale lines from nostril through eye and on to upper temporal region less pronounced and more diffuse than in congeners. Iris bronze to coppery (Heinz et al. 2021).
|Comment||Distribution: See map in Heinz et al. 2021: 183 (Fig. 12).|
|Etymology||Named after Vivian F. M. Fitzsimons (1901-1975), South African herpetologist. See also Haacke 1975.|
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