SAND LIZARD. 25 
in the following manner :—‘“ (3 Lacertus viridis Aldrovand. 
y Lacertus dorso punctis albis duplici serie. Var. B 
rarissima, nec mihi ipsi obvia.” Here we have the com- 
mon and the rarer green varieties of our own species in- 
dicated, at least, with great probability. But in the more 
recent edition of the same work by Retzius, the characters 
are still more decidedly applicable; and the expression 
“Jaterum ocellis nigris, pupillé alba,” is decisive. This 
opinion is also corroborated by the short description given 
by Otho Frederick Miiller, in his ‘‘ Prodromus Zoologiz 
Danice,” of two varieties of the indigenous Lacerta of 
Denmark, which he also terms Z. agilis. The following 
are his words :—‘“ b. supra maculis nigris punctis linearibus 
[albis* | inscriptis, subtus absque maculis. c. Supra cine- 
reofusca, punctis albis nigrisque contiguis.” These are 
very accurate descriptions of the markings of different in- 
dividuals of the present species; even the green variety, 
which occurs also in this country, was not unknown to 
Miller, who adds, “ viridem quoque in sylva Frederichs- 
dalensi reperi.” 
From these considerations it becomes necessary to re- 
form the nomenclature and synonymy of our English 
Lizards, by restoring the name of agilis to the present 
species, to which it originally belonged,—by abolishing 
altogether that of st¢rpium, adopted by Mr. Jenyns from 
the French writers, by whom it had been applied to this 
species,—and in the case of the other and more common 
indigenous species, by substituting for the name L. agilis, 
hitherto applied, that of Zootoca vivipara, which really 
belongs to it. The first naturalist who has demonstrated 
that the species now under consideration is the true Lin- 
* The word here is originally “xigris;” but this is evidently a misprint. 
§ 3 Vrs 5 y I 
Spots of black could not be said to be marked with black dots. 
