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Issue: Vol. 4496 No. 1: 5 Oct. 2018
Type: Article
Published: 2018-10-04
DOI: 10.11646/zootaxa.4496.1.36
Page range: 472–480
Abstract views: 74
PDF downloaded: 2

Brasilisia n. gen. and Arraia n. gen., two new genera of Ocnerodrilidae (Annelida, Clitellata, Oligochaeta) from Eastern Amazonia, Brazil

Postgraduate Program in Agroecology, Maranhão State University (UEMA), Avenida Lourenço Vieira da Silva 1000, Campus Universitário Paulo VI, Jardim São Cristovão, 65.055-310 São Luís, MA, Brazil
Postgraduate Program in Agroecology, Maranhão State University (UEMA), Avenida Lourenço Vieira da Silva 1000, Campus Universitário Paulo VI, Jardim São Cristovão, 65.055-310 São Luís, MA, Brazil
Postgraduate Program in Agroecology, Maranhão State University (UEMA), Avenida Lourenço Vieira da Silva 1000, Campus Universitário Paulo VI, Jardim São Cristovão, 65.055-310 São Luís, MA, Brazil
Sustainable Living Department, Maharishi University of Management, Fairfield, Iowa, United States
Annelida Earthworms Amazon Cerrado Ocnerodrilidae

Abstract

We describe two new species from two new genera of Ocnerodrilidae from Alcântara and Rosário counties of Maranhão, Brazil. They were collected in very sandy soil in the transition between the Amazonia and Cerrado biomes. One of the species, Brasilisia punki n. sp., is the first report of earthworms of this family with an unusual pattern of genital markings and a gizzard in segment five. The other species Arraia nelmae n. sp. has a gizzard in segment six and a pair of calciferous glands in nine. We also provide an updated key for all genera of Ocnerodrilidae.

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