First record of the terrestrial nemertean Geonemertes pelaensis Semper, 1863 (Hoplonemertea: Prosorhochmidae) for Cuba.
The terrestrial nemertean Geonemertes pelaensis Semper, 1863 (Hoplonemertea: Prosorhochmidae) is recorded for first time from Cuba based on specimens from Artemisa and La Habana provinces, western Cuba. Both external morphology and histology are consistent with G. pelaensis features. Maximum likelihood and Neighbor-joining analysis of mitochondrial cytochrome c oxidase I (COI) obtained from Cuban individuals form a well-supported clade with other specimens of G. pelaensis from Bermuda and Japan, as well as with Geonemertes sp. from Panama. The current record expands the distribution of G. pelaensis in the West Indies.