Genus Hammerschmidtiella Chitwood, 1932

Generic diagnosis. Female: Body spindle shaped. Cephalic extremity formed by two annules and cervical region with variable number and arrangement of enlarged annules. Oesophageal corpus with a pseudobulb, cylindrical isthmus. Vulva in the anterior third of the body, vagina and uterus posteriorly directed. Didelphic, prodelphic. Eggs elongate, pear-shaped, oval/ovoid that are flattened on one side. Tail attenuate to filiform.

Male: Cephalic extremity formed by single expanded annule. Oesophageal corpus clavate. Caudal extremity abruptly truncate, posterior to anus with spine-like appendage. Caudal papillae absent or if present consisting of one pair sub-ventral pre-anal, one pair lateral adanal, one pair sub-ventral just posterior to anus and one duplex papilla at the base of the caudal appendage. Spicule present or absent.