Description of first record of Petasiger exaeretus Dietz, 1909 (Trematoda: Echinostomatidae) in avian host from Pakistan.
Description of first record of Petasiger exaeretus Dietz, 1909 (Trematoda: Echinostomatidae) in avian host from Pakistan.
Description of first record of Petasiger exaeretus Dietz, 1909 (Trematoda: Echinostomatidae) in avian host from Pakistan.
Muhammad Moosa Abro1, Ali Murtaza Dharejo2, Muhammad Munif Khan2, Nadir Ali Birmani2, Saima Naz2*
ABSTRACT
The aim of present paper is to describe first record of genus Petasiger which was collected during systematic study of
helminths of Little Cormorant, Phalacrocorax niger of District Sanghar, Sindh, Pakistan. Petasiger exaeretus (Dietz,
1909) were identified from the intestine of Little Cormorant, Phalacrocorax niger on the basis of morphological
features including pear shaped body, maximum width at testicular level, 27 head collar spines, long fore-body, well
developed pharynx, pre-acetabular cirrus sac, tandem and contiguous testes, short uterus, spherical and pretesticular
ovary. P. exaeretus is a common parasitic species of Cormorants. However, it has not been reported from
Pakistan in Little Cormorant, Phalacrocorax niger prior to the present study.
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