The members of the genus Rhinoceros are the one-horned rhinoceroses. The word "rhinoceros" is of Greek origin; "rhino" meaning "nose", and "ceros" meaning "horn

Horn (anatomy)

A horn is a pointed projection of the skin on the head of various animals, consisting of a covering of horn surrounding a core of living bone. True horns are found mainly among the ruminant artiodactyls, in the families Antilocapridae and Bovidae...

". The genus contains two species, the Indian Rhinoceros

Indian Rhinoceros

The Indian Rhinoceros is also called Greater One-horned Rhinoceros and Asian One-horned Rhinoceros and belongs to the Rhinocerotidae family...

 (Rhinoceros unicornis) and the Javan Rhinoceros

Javan Rhinoceros

The Javan Rhinoceros or Lesser One-horned Rhinoceros is a member of the family Rhinocerotidae and one of five extant rhinoceroses...

 (Rhinoceros sondaicus). Although both members are endangered, the Javan Rhinoceros is one of the most endangered large mammals in the world with only 60 individuals surviving in Java

Java

Java is an island of Indonesia. With a population of 135 million , it is the world's most populous island, and one of the most densely populated regions in the world. It is home to 60% of Indonesia's population. The Indonesian capital city, Jakarta, is in west Java...

 (Indonesia

Indonesia

Indonesia , officially the Republic of Indonesia , is a country in Southeast Asia and Oceania. Indonesia is an archipelago comprising approximately 13,000 islands. It has 33 provinces with over 238 million people, and is the world's fourth most populous country. Indonesia is a republic, with an...

).