LACERTA MURALIS VAR. BOCAGEI SEOANE. 
209 
tion I must however explain the three principal positions mentioned 
above. 
a) position: turbinale laid on the microscope’s stand in its dorsal 
view, its lower plain in contanct with the stand. (Horizontal position). 
ß) position: same position as in a), but outer border of lamina 
posterior somewhat raised up, thus resting in an o b 1 i q u e position. 
y) position: The turbinale is laid on its backside, presenting 
a horizontal position its lower surface turned upwards. 
I will first describe the turbinába of the var. Bocagei, adding at the 
end of this description a comparative tabulary containing the main diffe¬ 
rences existing between the Lacerta muralis Laur. (from Budapest), Lac. 
muralis subsp. nigriventris Bp. (from the surroundings of Florence) and the 
var. Bocagei. 
Size somewhat smaller than in L. muralis Laur., and rather robust. 
Lamina anterior rounded-triangular. Trabeculum tolerably 
short, processus lateralis anterior short and blunt, however 
well distinguishable ; processus lateralis posterior present 
in form of a small blunt angle. Lamina posterior large, in a) and y) 
position appearing as broadly rounded, in ß) position subtriangular ; its 
border in y) position, after the trabeculum, is straight, forms a blunt angle 
then broadly rounded, presents again a slight blunt angle before the proc. 
medialis posterior, reaching this latter one in a short straight line. Pro¬ 
cessus medialis posterior short and tolerably broad, bluntly 
pointed. On the inner side of the turbinalia we find a bony crest, clearly 
seen in ß) position; in a) position this crest disappears more or less, its 
plane being vertically situated ; if we put the two turbinalia in the a) posi¬ 
tion — which corresponds to their natural one — and approach them to 
eachother, then the two crests meet with their plane in the median line. 
In the examined individual of Bocagei this crest is short, strongly developed, 
ellypsoid, presenting a small point on both ends. As this crest is not named 
in Prof. Mehely’s article, I propose to call it crista medialis. 
The anterior opening of the covered nerve canal is situated at the base 
of the anterior point of crista medialis, whereas the posterior opening 
lies at the base of the posterior point. 
The following table sets forth the differences of the three above men¬ 
tioned forms, regarding the main characters of each of them. 1 
1 The stability and thus the value of the following characteristics will only be deter¬ 
minable when sufficient material will be forthcoming. 
Annales Musei Rationalis Hungarici. XIII. 
14 
