Abstract

Trichuris spp. Nematodes were isolated from slaughtered sheep in the South Regions of Iraq
/ Basrah. The diagnosis and description were based on morphological characteristics. Two
species of Тrichuris were found, T. ovis and T. globulosa. While T.оvis was most common, Т.
globulosa was relatively rare among the infested animals. Male and female nematodes were
recognized as Trichuris spp. morphologically; however, only one male was identified as T.
globulosa. The species of Trichuris spp. were distinguished through their biometrical
features such as presence of cylindrical spicular sheath, protrusive vulva, length of the
spicule, as well as the proximal and distal cloacal tube. Moreover, diagnosis of Trichuris
species was confirmed by the nomenclatural acts as it has been recorded in the registration
system of the Iraqi Natural History Research Center when a certain deposit number for
Trichuris spp.: INHM.2020Nem.1.1. They were noting the presence of Trichuris spp. as such
the samples of nematodes were deposited in the helminth collection at the Museum of the
University of Baghdad. This repository is considered as the confirmation of the diagnosis and
morphological analysis.