Data from: Description of a new species of Hedruris Nitzsch, 1821 (Nematoda, Hedruridae) from freshwater turtles in Argentina, with information on its life cycle and a review of the genus’s host and geographic distribution

Hedruris dratini n. sp. (Nematoda, Hedruridae) is described from
freshwater turtles in Argentina and information about its life cycle
provided. The new species differs from the remaining species of the genus
by possessing an excretory pore, and the nerve ring and deirids being
positioned at equal distance from the anterior end. Additionally, H.
dratini n. sp. has mammilated eggs and males possess nine pairs of caudal
papillae. The first life cycle within the genus including an amphipod as
intermediate host and a reptile as a definitive host is presented.
Furthermore, the host and geographic distribution of species of the genus
Hedruris Nitzsch, 1821 are analyzed. Although the genus has a cosmopolitan
distribution and parasitizes a great diversity of hosts, the majority of
its species follow a Gondwanian distribution and its preferred hosts are
amphibians.