The carthworms species of Maracá Ecological Station (Roraima, Brazil) are listed and one identification key, based on external characters, is presented. New occurrences are indicated to the Glossoscolecidae: Pontoscolex (Meroscolex) roraimensis, P. (P.) nogueirai, P. (P.) cuasi, P. (P.) carethrurus, Glossodrilus baiuca, G. oliveiraeand Octochaetidae: Dichogaster bolaui. Glossodrilus motu, sp. n. is described and figured.