Wikipedia:

Mountain Gorilla | Gorilla beringei beringei [species]

Summary:

one of the two subspecies of the Eastern Gorilla. There are two populations. One is found in the Virunga volcanic mountains of Central Africa, within three national parks: Mgahinga, in south-west Uganda; Volcanoes, in north-west Rwanda; and Virunga ...  (38 of 3583 words, 8 images)

Link:

http://en.wikipedia.org/wiki/Mountain Gorilla  [cite]

Merriam-Webster:

mountain gorilla

Summary:

a gorilla (Gorilla gorilla beringei) inhabiting the Virunga mountain range  (10 of 18 words)

Link:

http://www.merriam-webster.com/dictionary/mountain gorilla  [cite]

Wiktionary:

mountain gorilla

Summary:

A subspecies of the eastern gorilla.  (6 of 12 words)

Link:

http://en.wiktionary.org/wiki/mountain gorilla  [cite]

Columbia:

gorilla

Summary:

an ape, Gorilla gorilla, native to the lowland and mountain forests of western and central equatorial Africa. It's the largest of the apes, the males ...  (25 of 413 words)

Link:

http://www.infoplease.com/ce6/sci/A0821328.html  [cite]

Britannica:

gorilla | Gorilla gorilla [species]

Summary:

largest of the apes and the closest living relative to humans, with the exception of the chimpanzee. Gorillas live only in tropical forests of ...  (24 of 100 words)

Link:

http://www.britannica.com/EBchecked/topic/239295/gorilla  [cite]

Encarta:

gorilla | gorillas [plural]

Summary:

the largest ape, with a relatively short but very powerful body and coarse dark hair. Native to: central Africa. Latin name Gorilla gorilla. | ...  (23 of 77 words, 2 senses, 1 etymology, pronunciation)

Link:

http://encarta.msn.com/dictionary 1861614730/definition.html  [cite]

Random House:

gorilla

Summary:

the largest of the anthropoid apes, Gorilla gorilla, terrestrial and vegetarian, of western equatorial Africa and the Kivu highlands, comprising the ...  (21 of 65 words, 3 senses, pronunciation)

Link:

http://dictionary.infoplease.com/gorilla  [cite]