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Pachydactylus barnardi FITZSIMONS 1941

Pachydactylus barnardi
Adult male of Pachydactylus barnardi in terrarium. © M. Barts

Pachydactylus barnardi
Adult male of Pachydactylus barnardi from Springbok. © J. Marais.

Pachydactylus barnardi
Captive born Pachydactylus barnardi. © M. Barts

Pachydactylus barnardi
Hatchling of Pachydactylus barnardi. © T. Ping.

Pachydactylus barnardi
Hatchling of Pachydactylus barnardi. © T. Ping.

Pachydactylus barnardi
Hatchling of Pachydactylus barnardi. © T. Ping.

Pachydactylus barnardi
Habitat of Pachydactylus barnardi. W-South Africa.
© M. Barts

 

Originalbeschreibung / Original Description

FITZSIMONS, V.F.M. (1941): Description of some new Lizards from South Africa and a Frog from Southern Rhodesia. — Ann. Transvaal Mus., 20(3): 273, PI. XII, fig. 6 — Terra typica: Little Namaqualand

Description based on a series of specimens from Little Namaqualand in thecollection of the South African Museum, together with one from the same area in the Transvaal Museum collection. Holotype, male (S.A.M. 18055-Garies). Paratypes: S.A.M. 4297; Concordia, 17948 and 18055; Garies, 18146; Kamieskroon, 18540; Kleinzee and T.M. 18013; 15 miles east of Port Nolloth.

Description. Head not or but feebly depressed, distinct from neck, from 11/5 to 12/5 times as long as broad. Snout rounded, its length about 11/4 times distance between eye and ear opening and 11/2 times diameter of eye. Ear opening moderate, oval and slightly oblique. Nostril pierced between three nasals only; the nasorostrals separated from one another mesially by one or two small granules. Rostral pentagonal, from 11/3 to 11/2 times as broad as deep. Upper labials 8-10 (usually 9), lower 8. Mental a little narrower than (sometimes subequal to) adjoining lower labials, distinctly longer than broad, not or but slightly narrowed behind. Scales on snout granular, subequal, keeled and subconical; back of head covered with minute granules fairly densely intermixed with rounded, conical, striated tubercles which are a little larger than scales on snout; back covered with small unequal-sized granules and closely set (usually only a single granule apart), large, trihedral tubercles, arranged in more or less longitudinal series; enlarged, conical, keeled and striated tubercles surface of hindlimbs. Chin and throat covered with small, equalsized, convex to subconical granules; scales on belly flattened and strongly imbricate, larger than granules on throat, smaller than or subequal to scales on snout. Digits with 5 (including the divided distalmost lamella) transverse adhesive lamaellae below; no enlarged subdigital scales on basal portion of digits. Tail much shorter than head and body, segmented, covered above with unequal-sized, flattened, keeled, spinose, strongly imbricate scales and whorls (one to each segment) of 8-6 (8 basally and 6 distally) enlarged, flattened conical tubercles or scales, which are strongly keeled, spinose and often much elongated and recurved; below, scales (except for basal segment which is granular) elongate, spinose, strongly imbricate and larger than those above. On either side base of tail near vent is a series of 2-3 enlarged, flattened, sharply edged tubercles, bordered below by small granules.

Colour. Dark brown to blackish above, with white to pale brownish white spots and marking on head as follows: a short streak on either side from rostral to upper anterior corner of eye, joined up with a transverse streak just anterior to orbits, thus isolating a small triangular dark spot on middle of snout; five spots on back of head, i.e. two on each side of occiput (one behind the other) and a median one posteriorly; a well-defined strongly dentated white streak, dark-edged below, arising on posterior labials, passing through ear opening and completely encircling back of head. Four dentated white transverse bands on back, much narrower than the dark interspaces, which are usually divided into more or less symmetrical elongate, oval spots or blotches, by thin longitudinal projections from the pale crossbands. Tail with narrow white crossbands. Labials dark spotted. Lower surfaces, creamy to greyish white, chin and throat with dark vermicular spots, chest and belly speckled with dark brown, sometimes spotted preanally and on underside of thighs.

Dimensions. Male (S.A.M. 18055) H. and B. 53, tail (partly reproduced) 38, length head 15,1, breadth head 12,8 mm.