During study of helminthic fauna of Little cormorant (Phalacrocorax niger), from Sindh, Pakistan, a total of 90 trematodes belonging to genus Clinostomum were collected from esophagus and gizzard of four hosts. On the basis of body shape and size, distribution of vitellaria, shape and position of testes, ovary and cirrus sac, these trematodes were identified as Clinostomum complanatum (Rud., 1814) Braun, 1899.However, this species of trematode is being reported for the first time in Phalacrocorax niger from Pakistan.

Trematode, Clinostomum complanatum, Phalacrocorax niger, Sindh, Pakistan.

During study of helminthic fauna of Little cormorant (Phalacrocorax niger), from Sindh, Pakistan, a total of 90 trematodes belonging to genus Clinostomum were collected from esophagus and gizzard of four hosts. On the basis of body shape and size, distribution of vitellaria, shape and position of testes, ovary and cirrus sac, these trematodes were identified as Clinostomum complanatum (Rud., 1814) Braun, 1899.However, this species of trematode is being reported for the first time in Phalacrocorax niger from Pakistan.

Muhammad Moosa Abro, Ali Murtaza Dharejo, Muhammad Munif Khan and Nadir Ali Birmani (2016). First record of Clinostomum complanatum (Trematodes: Clinostomatidae) in Pakistan from Phalacrocorax niger (Aves: Phalacrocoracidae) , Biological Forum – An Inte