3.4. Type specimens
Holotype: infective third-stage juvenile; paratype: third-stage
juveniles, males and females of first and second generation are
postanal swelling is slightly developed or absent in the first generation
of S. xueshanense n. sp. and other species of this group. The
description of S. sangi gives only a few characters to compare this
species with S. xueshanense n. sp. The exception is the excretory
opening, gubernaculums shape, ratios c0
, %D, %E, SW, GS (Nguyen
et al., 2007).