The black olm (Proteus anguinus parkelj Sket & Arntzen, 1994) is the only recognized subspecies of the olm other than the nominate subspecies. It is endemic to the underground waters near Črnomelj, Slovenia, an area smaller than 100 square kilometres (39 sq mi).

The olm or proteus (Proteus anguinus ) is an aquatic salamander in the family Proteidae, the only exclusively cave-dwelling chordate species found in Europe. In contrast to most amphibians, it is entirely aquatic, eating, sleeping, and breeding underwater.

The black olm (Proteus anguinus parkelj) is a highly enigmatic cave salamander endemic to Slovenia and is the only recognised subspecies of the more well-known white olm (Proteus anguinus). [1] The subspecies was first discovered in 1986 and described in 1994 by researchers of the Slovenian Karst Research Institute in the Diblicica karst spring ...

The olm or proteus (Proteus anguinus) is an aquatic salamander in the family Proteidae, the only exclusively cave-dwelling chordate species found in Europe. In contrast to most amphibians, it is entirely aquatic; it eats, sleeps, and breeds underwater.

Picture 2 – Black Olm. This amphibian of the dark is also found in caves and abandoned mines. It is necessary to note that these species prefer water temperature ranging from 6ºC to 12ºC. However, the case is quite different for the black olm that prefers warmer surface waters.

The black olm or the black proteus, the mysterious relative of the white olm, is endemic only to the underground world of Črnomelj. The black olm lived here for millions of years before the formation of the karst terrain.

May 27, 2024 · The black olm differs from the olm in its appearance: most obviously, it is dark brown or black and usually pigmented, and it also has a shorter head and longer body with 34–35 vertebrae. While the nominate subspecies is a pink color, the black olm subspecies is …

Olms are pale and sightless, although their skin-covered eyes are still sensitive to light, despite spending their entire lives in caves. A small population of “black olms”, which has darker pigmentation than other members of the species, has been recognised as a distinct subspecies.

olm (mexican salamander) with black eyes. olm has a pear-shaped head with a rounded snout. A small mouth houses tiny teeth that form a sieve-like structure, enabling it to trap larger food particles. Their eyes are rudimentary and covered by a thin layer of skin, rendering them effectively blind.

Juveniles may be distinguished from adults by the faint yellow or red blotches on their skin, and their better developed eyes. Black olms, a variant of this species previously known as Proteus anguinus parkelj, have permanently dark skin and a shorter head. (Arnold and Burton, 1978; Bulog, 1999; Sessions, 2010a; Steward, 1969) Other Physical ...