287 
may be read either way. Darwin (a disbeliever in the effects of physi- 
cal condition), we see, reads it that the resemblance is slight; Schiodte, 
on the other hand, who appears to be a thorough believer in its effects, 
sees nothing more in the marvellous resemblance than might have 
been anticipated. I say that he seems to be a thorough believer, be- 
cause he goes so far as to separate those insects which are found in 
stalactite caves from those in other caverns, maintaining (and I believe 
with justice) that the two kinds were respectively confined to these 
classes of caves. But let us see how the fact actually stands as to 
resemblance. I shall take the eyeless Anophthalmi. It is not the 
only one which would suit me, but it is the most striking. Although 
belonging to the family of Trechidae, it possesses very marked and 
distinctive characters, besides the want of eyes. Nothing comes 
very close to it. It stands out and apart, and can be distinguished 
in a moment. It is found nowhere but deep in limestone caverns ; 
but this generic form is repeated by different species in almost 
every cave which has been examined. In the caves of Adelsberg 
in Carniola, the two species Anophthalmus Schmidtii and Anoph- 
thalmus Bilimekii are found. Anophthalmus hirtus and Anophthal- 
mus Hacquetii , in the Grotto of Krimberg in Oberiggdorf ; Anoph- 
thalmus Scopolii , in the Grotto of Setz in Corinthia ; Anophthalmus 
Dorics in the Grotto des Ours in Eastern Liguria. Anophthalmus 
Ghiliani has been taken in a cavern at Monte Yiso, near the 
French frontiers. Anophthalmus Gallicus and Anophthalmus Ban- 
dellei in the Grotto of Betharram in the low Pyrenees ; Anophthalmus 
Crypticola and Anophthalmus Orcinus , in the Grotto of Gargas, high 
Pyrenees; Anophthalmus Raymondi in two caves near Marseilles ; 
and Anophthalmus Tellkampjii in the Mammoth Caves of Ken- 
tucky, all confined to their own caves, or districts of caves, and found 
nowhere else. Now, how is this \ When I first became acquainted 
with Mr Darwin’s theory, it was from the perusal of the short no- 
tice of its main elements, published about eighteen months ago in the 
Linnean Society’s Proceedings ; and the imperfect account of it there 
given induced me to suppose that he held that every species was 
descended from the one nearest to it, and hence, to infer that he would 
hold that all the Anophthalmi were connected one with the other by 
direct descent, and I imagined that the fact of closely allied species 
being found in the caves of Kentucky and the caves of Carniola, 
without any means of communication with each other, must be fatal 
