. Bonn zoological bulletin. Zoology. Fig. 8. Lacerta chlorogaster (= Darevskia chlorogaster) from Boulenger (1909: PI. LVII). Below one chromolithograph ( an image printed successively with differently coloured lithograph plates), and above two (pen-) lithographs (scutellation of pileus and surroundings of the anal region). The highly informative combination of naturalistic and schematic figures upon one lithogra- phic plate turned up at first in the middle of the 19th century. The "Neue Classification der Reptilien nach ihren natiir- lichen Verwandtschaften" was Fitzinger's (182
. Bonn zoological bulletin. Zoology. Fig. 8. Lacerta chlorogaster (= Darevskia chlorogaster) from Boulenger (1909: PI. LVII). Below one chromolithograph ( an image printed successively with differently coloured lithograph plates), and above two (pen-) lithographs (scutellation of pileus and surroundings of the anal region). The highly informative combination of naturalistic and schematic figures upon one lithogra- phic plate turned up at first in the middle of the 19th century. The "Neue Classification der Reptilien nach ihren natiir- lichen Verwandtschaften" was Fitzinger's (1826) first im- portant work (see Mertens, 1973). His "XI. Familia. Lac- ertoidea. Lacertoiden" comprises three genera, among them Lacerta with 17 species. It was apparently the first time in a systematic listing that neither this family nor the genus Lacerta comprehended any taxa now being ranked outside the present-day Lacertidae. It was the age of the great systematic monographs and shortly afterwards Wagler (1830) published his "Naturlich- es System der Amphibien mit vorausgehender Classifica- tion der Saugethiere und Vogel". Wagler's monograph is especially distinguished by comprehensive and progres- sive morphological and anatomical descriptions and con- siderations (pp. 211-344). His genus Lacerta only com- prised lizards belonging to the current genera Lacerta () and Timon. His "Familia III. L. autarchoglossae" comprehended the Linnean taxa Lacerta and Tachydro- mus, as well as the new lacertid genera Zootoca, Podar- cis, Aspistis, Psammuros (the latter two are still synonyms of Psammodromus Fitzinger), apart from some genera be- longing to other current families. Zootoca and Podarcis were regarded mostly as synonyms subsequently, but were revalidated more than 150 years later. All in all Wagler's systematics of the genus Lacerta appears rather modern (Fig. 1). The "Histoire Naturelle des Reptiles" in eight large vol- umes by D
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