Arachnida Araneae do Museu Nacional (MNRJ ARAC ARAN)

The collection of arachnids and myriapods of the MNRJ is the most important in Latin America, housing about 2,000 type specimens. The collection of Opiliones is the second most important in the world, with around 40,000 registered specimens.

MNRJ蛛形纲与多足纲标本馆藏为拉丁美洲最重要的同类馆藏，馆藏约2000件模式标本。该馆的盲蛛目（Opiliones）标本馆藏为全球第二大同类馆藏，登记在册标本约40000件。