Wikipedia
Biospeleology
Biospeleology, also known as cave biology, is a branch of biology dedicated to the study of organisms that live in caves and are collectively referred to as troglofauna.
Usage examples of "biospeleology".
Beltane had once had a small biospeleology department, but when Yain Takuat had died, there had been no replacement for his specialty.
More than ever now I wished that the biospeleology lab had not closed and that I had some reference to what lived naturally in these underground regions.