16 THE ZOOLOGIST. 



not appear to be specimens that had escaped " : others, from the 

 Bhone valley, Lake of Geneva, and elsewhere, are now considered 

 to have been introduced (Fatio) . Not so in Northern Germany, 

 where this species is found in Mecklenburg, Brandenburg, Posen, 

 Eastern Prussia ; further, in Courland, — though not in Livonia,* 

 — and even as far as the vicinities of Moscow. 



Hence we may suppose that its hardy constitution would have 

 been proof against all the climatal vicissitudes of the regions 

 (Upper and Lower Austria, South Germany, North and Central 

 France) situated between the above-mentioned northern limits 

 and the Mediterranean countries, Dalmatia, Italy, South France, 

 to which it is again indigenous. Fossiliferous remains testify to 

 its former more extended and connected range ; and its present 

 apparent extirpation in the intervening territorial zone referred 

 to may be attributed in some degree to an extreme structural 

 inflexibility. 



Order II. Sauria. — I. Fam. Lacertid^:. 

 1. Lacerta viridis, Laur.— The range of this lizard is restricted 

 in Baden to apparently two points, one of which, the Isteiner 

 Klotz, — a hill lying between Freiburg and Bale, and near the 

 Khine, — is frequently referred to. It appears to be rarer there 

 now than formerly, t The other locality is the Kaiserstuhl already 

 mentioned, where it is found in considerable numbers, affecting 

 chiefly the central portions and the warm slope towards the 

 Bhine (in greatest abundance on the so-called "Badberg," and 

 near the ruined castle of Limburg), whilst, so far as my experience 

 goes, it avoids the southern and eastern districts, where its place 

 is iccupied by a particularly fine race of L. agilis. 

 j Specimens from here often attain 30 to 35 centimetres in length, 

 and are usually of the punctata, Daud., variety, the female retain- 

 ing more of the green ground-colour. The young of both sexes, at _^ 

 first characterized by a uniform brownish tint, generally assume 

 with advancing years a tendency to maculata, Duges, — Fatio's 

 var. " tachee oumarbree, — which develops later into the punctata ° 

 of the adults, this process being carried furthest in the male. 

 Sometimes this tendency fails to assert itself, in which case the 



* See O. v. Lewis, ' Reptilien Kur-Liv-und Esthlands.' 1884. 



f F. Miiller, ' Verhandlungen der Naturforsch, Gesellschaft zu Basel, 



