Epipenaeon latifrons (Isopoda: Bopyridae) and Pandarus rhincodonicus (Copepoda: Pandaridae), New Records of Parasitic Crustacea for the Philippines
Two species of parasitic crustacean namely Epipenaeon latifrons Bourdon, 1979 (Isopoda: Bopyridae) and Pandarus rhincodonicus Norman, Newbound and Knott, 2000 (Copepoda: Pandaridae) were identified from recent collections. The former species was recovered from the branchial chambers of the Indian white prawn, Fenneropenaeus indicus (Decapoda: Penaeidae) caught from the waters off Matnog port, Sorsogon and Lucena, Quezon. The latter species was found on the edges of the fins and lips, and gills of the whale shark, Rhincodon typus (Orectoloboformes: Rhincodontidae) on necropsy stranded off the coast off Jagna, Bohol, Philippines. Prawns infected with E. latifrons exhibited characteristic bulge of the carapace on the side of the infected gill chamber. Specimens were preserved and kept in 80% ethyl alcohol. Whole and dissected parts of specimens were studied by clearing in lacto-phenol and mounted temporarily or gradually dehydrated in increasing grades of ethyl alcohol, some stained, and mounted in Canada balsam on glass slides for microscopic examination. Based on the Philippine materials, the two species are described and measurements of both males and females are given; drawings and photographs of them are also provided. Epipenaeon latifrons and Pandarus rhincodonicus are reported for the first time in the Philippines, constituting new locality records.
Key words: Epipenaeon latifrons, Copepoda, Isopoda, Pandarus rhincodonicus, Philippines