Sexual transmission of a nematode parasite of Wood Mice (Apodemus sylvaticus)?

Checklist of the subfamily Adoncholaiminae Gerlach and Riemann, 1974 (Nematoda: Oncholaimida: Oncholaimidae) of the world: genera, species, distribution, and reference list for taxonomists and ecologists

BACKGROUND

Adoncholaiminae is one of the seven subfamilies in the free-living aquatic nematode family Oncholaimidae. Nematodes in Adoncholaiminae are found from various water environment of the world. However, a checklist of all Adoncholaiminae species including full literature, especially information of experimental (not taxonomic) works, has not been updated for more than 40 years.

NEW INFORMATION

A revised checklist of the subfamily Adoncholaiminae of the world is provided. It contains 31 valid and 13 invalid species names in four genera with synonyms, collection records, and full literature from 1860's to 2015 for each species. A literature survey of total 477 previous papers was conducted in this work, and 362 of them are newly added to checklist.

The occurrence of strongylid nematodes in the epididymides of wood mice

The recent discovery of a larval nematode in the epididymides of free-living wood mice (Apodemus sylvaticus) suggests a sexual transmission of these parasites. They have been placed within the bursate nematodes (order Strongylida) through 18S rDNA analysis, suggesting that they are undetermined metastrongyloid nematodes. The possibility that these parasites are transmitted sexually opens an intriguing field of research because sexually transmitted metazoan parasites are known to occur mainly in invertebrates, whereas in vertebrates sexually transmitted parasites are usually microparasites such as viruses, bacteria and protozoa.