Fauna Subterranea. 137 



forming any conclusion as to its proximate systematic relations. 

 This last defect applies particularly to the fourth, Triura caver- 

 nicola, which appears to belong to the order of Amphipoda, and 

 to have a most remarkable structure. Dr. Tellkampf has likewise 

 found a new species of Anophthalmus, extremely like that of 

 Europe, but characterized as different by Erichson, who calls it 

 A. Tellkampjii. Finally, a sort of fish different from Amblyopsis, 

 a grasshopper belonging to the genus Phalangopsis, and flies of the 

 genus Anthomyia, are enumerated as found in the cave. 



At the time the account of these discoveries reached Copenha- 

 gen, I was preparing for a scientific tour through a great part of 

 Europe. One of my objects was to visit the Alps, and make 

 collections for the Royal Museum of Natural History, of which 

 the Insecta, Arachnida and Myruqwda, are entrusted to my 

 charge, divisions in which it is very poor in European species : I 

 determined, therefore, to arrange my plans in such a way, that I 

 might connect my tour to the Alps with a visit to the caves in 

 Carniola, and accordingly I selected the eastern portion of the 

 Alps for my researches.* After remaining among these during the 

 summer of 1845, I arrived at Adelsberg early in the autumn. 



I examined four caves ; namely, that of Adelsberg, the Mag- 

 dalena and Luege caves, all in the neighbourhood of Adelsberg, 

 and the Corneale cave at Trieste. The result was, first, that I 

 found every one of the animals, known before as inhabitants of 

 those caves ; secondly, that I discovered more than twice as 

 many new kinds, among which there are five types of new genera ; 

 and finally, as these latter concern a part of the subterranean 

 Fauna hitherto almost unknown, I believe T can offer materials for 

 a systematic inquiry into the whole phenomenon. I will now 

 proceed to describe what 1 have observed, and in conclusion I 

 will venture to offer some remarks on the character of the sub- 

 terranean Fauna. 



The entrance into the first two of the four Stalactitic caves just 

 mentioned, is horizontal, and through the two largest flow rivers ; 

 namely, the Pojk through the Adelsberg cave, and the Magdalena 

 through the cave bearing that name. The Luege grotto is the 

 most considerable of four grottos, placed almost perpendicularly 

 one above the other ; two underneath, and one above the castle 

 of Luege, so famed from romantic traditions, and which itself 



* My collections in the said classes made on the Alps, and during the subse- 

 quent part of my journey, especially in the Roman Campagna, Calabria and 

 Sicily, amount altogether to about 70,000 specimens, which have safely arrived 

 at Copenhagen, and have been deposited in the Museum. 



