New host record of the genus Porrocaecum Railliet Henry, 1912 (Nematoda: Anisakidae) from the bird Egretta garzetta in Hyderabad, Sindh, Pakistan

During survey of helminth parasites of bird little egret Egretta garzetta (Aves: Ardeidae) of Jamshoro and Hyderabad Districts of Sindh, Pakistan; 28 (10♂ and 18♀) nematodes were collected from gizzard of 4 hosts. Specimens were first fixed in steaming 70% alcohol and later stored in glycerin-alcohol solution. Among all species of the genus Porrocaecum Railliet Henry, 1912, present nematode has close resemblance with Porrocaecum angusticolle Molin, 1860 in all essential features and is identified as such. Molin (1860) described Porrocaecum angusticolle from stomach of the bird Egretta alba in Ukraine, Europe while, present species is recorded from gizzard of Egretta garzetta in Hyderabad, Sindh, Pakistan. Egretta garzetta is the new host record for the genus Porrocaecum Railliet Henry, 1912. However, this genus is being reported for the first time from Sindh, Pakistan.