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Karyotypes of some Brazilian diplopods

Carmem Silvia Fontanetti

Departamento de Biologia, UNESP, Caixa Postal 178, Campus de Rio Claro, 13500 Rio Claro, SP, Brasil

ABSTRACT

The present paper shows the cytology of two neotropical diplopod species belonging to the Spirostreptidae (Gymnostreptus acuticollis Verhoeff and G. olivaceus Schubart). G. olivaceus showed 2n = 12, XY, while G. acuticollis presented 2n = 22, the sexual chromosomes being impossible to identify.

Keywords: Karyotypes; Diplopods.

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