Troglomorphy (trogle,hole and morphe,shape)
Troglomorphy is a pattern of evolution which occurs in cave
ecosystems. It is characterised by the shrinking or loss of
eyes, a loss of pigmentation (often resluting in a pale white or
transparent coloring), enlargement of appendages, and oversized
As is the case with all other evolutionary processes, Troglomorphy
occurs over the course of millions of years. Mutations occur
in organisms that allow them to better cope with living in total
darkness, having an abundance of various substances, and a lack of
normal food sources.
Evidence of troglomorphy can be found in the spiders(Agraecina
Cristiani), water scorpions(Nepa Anophthalma), predatory
leeches, isopods(Trachelipus Troglobius), pillbugs,
springtails, millipedes, and
bristletails of Movile Cave in Romania.