yup well, theres cave systems all over the world, and we don't know exactly how many miles worth, but i know there are a lot.
along with many other animal sp, lack of light gives lighter pigmentation, and over a long period of time, the use of eyes are...well... none. i think these are the only two sp. of blind pleco that have been described, but i may be wrong, so i challenge you to try and find more!
the first pic is anscistrus formoso, and the last 2 pics are ancistrus cryptophthalmus.
the first is found in South America: Buraco do Ducho Cave in Formoso phreatic system.
the second is found in South America: São Vicente and Angélica-Bezerra cave system in upper Paraná River, Tocantins River drainage.
there not a very high profile fish, so here they are, shared with MFK
along with many other animal sp, lack of light gives lighter pigmentation, and over a long period of time, the use of eyes are...well... none. i think these are the only two sp. of blind pleco that have been described, but i may be wrong, so i challenge you to try and find more!
the first pic is anscistrus formoso, and the last 2 pics are ancistrus cryptophthalmus.
the first is found in South America: Buraco do Ducho Cave in Formoso phreatic system.
the second is found in South America: São Vicente and Angélica-Bezerra cave system in upper Paraná River, Tocantins River drainage.
there not a very high profile fish, so here they are, shared with MFK