AG magazine (in print)
Online magazine (pdf)
Online articles (html)
Literature- and poster projects
of the real lizards, family Lacertidae
Takydromus sexlineatus sexlineatus DAUDIN, 1802
Arnold, E.N. (1986) -
The basic anatomy of the lacertid hemipenis (intromittent organ) and methods for its investigation are described. In many members of the Lacertidae, the hemipenis has a structure quite unlike that of other squamate reptiles: the distal lobes of the retracted organ are complexly folded and there is a well-defined supporting structure of dense connective tissue, the armature. This incorporates blood sinuses and has an intramuscular portion embedded in the m. retractor penis magnus and two club-shaped bodies, the clavulae, that support the lobes in the erect organ. Unarmatured hemipenes occur in some lacertids and, like those of other squamates, possess sac-like lobes in the retracted state, but they are singular in having the lobes invested by the m. retractor penis magnus. It is argued that many of these apparently primitive hemipenes are in fact secondary derivatives of the armatured type. There is considerable inter-specific variation in hemipenial structure which is described systematically. In some cases this involves differences in size, asymmetry and simplification, which may arise as physical isolating mechanisms and is useful in distinguishing otherwise very similar species, particularly in the genus Mesalina (p. 1253). Other shared derived hemipenial features provide useful information about relationships between species and higher taxa and a summary of the hypotheses that they support is given (p. 1254).
Bauer, A.M. & Günther, R. (1995) -
A complete catalogue is provided for the type specimens of lacertid lizards in the herpetological collection of the Zoological Museum, Berlin, as of December, 1993. The collection contains a total of 514 type specimens, representing 63 taxa, of which 42 are currently regarded as valid at the specific or subspecific level. Types representing an additional four taxa appear to have been lost from the collection. The collections are especially rich in African lacertid types and in historically significant specimens collected early in the Nineteenth Century by Pallas, Eversmann, and Hemprich & Ehrenberg. Also present are the type series of many subspecies of Podarcis lilfordi and P. pityusensis described by Eisentraut.
Bischoff, W. (1998) -
Bourret, R. (2009) -
Daudin, F.M. (1802) -
Günther, A. (1888) -
Günther, A.C.L.G. (1864) -
Trobisch, D. & Glässer-Trobisch, A. (2008) -
A population of Takydromus sexlineatus sexlineatus was observed near Bogor (West Java). A total of 70 lizards were caught after they went to sleep shortly before sunset. Measurements taken revealed no sex-specific proportions but distinctly smaller TL:SVL ratios in juveniles as compared to adults. Nearly all males were found to have ocelli.
Walley, H.D. (1993) -