title: A new species of Anchistrotos (Copepoda: Taeniacanthidae) from hilsa shad, Tenualosa ilisha (Actinopterygii: Clupeidae), off Iraq.
abstract: A new species of parasitic copepod Anchistrotos tangi sp. n. (Cyclopoida: Taeniacanthidae) is described based on adult female specimens collected from the gills of hilsa shad, Tenualosa ilisha (Hamilton, 1822) (Actinopterygii: Clupeidae) captured off Iraq. The new species differs from its congeners by having the following combination of characters in the adult female: 1) the rostral area sclerotised; 2) the presence of row of spinules on the proximal and distal margins of the anal somite; 3) the maxilliped claw with 2 long whip-like setae just crossing the distal edge of claw with serrated terminal margin; and 4) the leg 5 ornamented with patched spinules distally. This is the ninth nominal species of Anchistrotos Brian, 1906.
authors.affiliation: Marine Ecosystem Research Division, Korea Institute of Ocean Science & Technology, Ansan, Seoul, Korea. bavmaran@gmail.com
authors.forename: Venmathi B A
authors.initials: VB
authors.lastname: Maran
authors.forename: Seong Yong
authors.initials: SY
authors.lastname: Moon
authors.forename: Thamir Katea
authors.initials: TK
authors.lastname: Adday
mesh_terms: D000818:Animals; D033342:Copepoda / Q000145:classification*; D004478:Ectoparasitic Infestations / Q000453:epidemiology / Q000469:parasitology / Q000662:veterinary*; D005260:Female; D005393:Fish Diseases / Q000469:parasitology*; D005399:Fishes; D005880:Gills / Q000469:parasitology; D019156:Indian Ocean / Q000453:epidemiology