Borges, Sonia; Moreno, A. G. (1990). Nuevas especies y un nuevo subgénero del género Pontoscolex Schmarda, 1861 (Oligochaeta: Glossoscolecidae) para Puerto Rico. Bollettino Museo Regionale di Scienze Naturali Torino. 8: 143-157.
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Borges, Sonia; Moreno, A. G.
1990
Nuevas especies y un nuevo subgénero del género Pontoscolex Schmarda, 1861 (Oligochaeta: Glossoscolecidae) para Puerto Rico.
Bollettino Museo Regionale di Scienze Naturali Torino
8: 143-157.
Publication
Annelidabase. Not known to be online digitized, except here. Dated as 10-4-1990 on the title page, but later Borges (1992) in "Soil Biol. Biochem. Vol. 24, claimed it was still in press in 1992.
A new subgenus, Mesoscolex, and three new species from Puerto Rica of the genus Pontoscolex (Oligochaeta: Glossoscolecidae) are described: P. melissae, P. spiralis and P. cynthiae.