Diplectanids (Monogenoidea: Dactylogyridea) from the gills of marine fishes of the Persian Gulf off Kuwait.

Seventeen species of Diplectanidae were collected from the gills of 17 species of marine fishes from the Persian Gulf off Kuwait. Lepidotrema kuwaitensis sp. n. from Terapon puta (Teraponidae), Lamellodiscus furcillatus sp. n. from Diplodus noct (Sparidae), and Protolamellodiscus senilobatus sp. n. from Argyrops spinifer and A. filamentosus (Sparidae) are described. Diplectanum cazauxi from Sphyraena jello and S. obtusata (Sphyraenidae) (new host and geographic records), D. sillagonum from Sillago sihama (Sillaginidae) (new geographic record), Pseudolamellodiscus sphyraenae from Sphyraena chrysotaenia (Sphyraenidae) (new host and geographic records), and Calydiscoides flexuosus from Nemipterus peronii and N. bipunctatus (Nemipteridae) (new host and geographic records) are redescribed. An incidental geographic record for C. flexuosus on N. japonicus from the western coast of India is included. Ten diplectanid species from 8 hosts were unidentified for lack of sufficient specimens. Diplectanum longipenis (synonym: Squamodiscus longipenis) is transferred to Lepidotrema. Squamodiscus is removed from synonymy with Diplectanum and becomes a junior subjective synonym of Lepidotrema. Calydiscoides indianus (synonyms: Lamellospina indiana and C. indicus) is a junior subjective synonym of C. flexuosus.