Daphniidae Straus, 1820

Lopez, Mark Louie D., Pascual, Jhaydee Ann F., Dela Paz, Erica Silk P., Rizo, Eric Zeus C., Tordesillas, Dino T., Guinto, Shea Kathleen, Han, Boping, Dumont, Henri J., Mamaril, Augustus C., Sr & Papa, Rey Donne S., 2017, Annot ated checklist and insular distribution of f reshwater microcrustaceans (Copepoda: Calanoida & Cyclopoida; Cladocera: Anomopoda & Ctenopoda) in the Philippines, Raffles Bulletin of Zoology 65, pp. 623-654 : 635

Family Daphniidae Straus, 1820

Ceriodaphnia cornuta Sars, 1885

Synonyms in Philippine literature: None.

Philippine records: Brehm, 1938; Uéno, 1966; Mamaril & Fernando, 1978; Petersen & Carlos, 1984; Mamaril, 1986, 2001; Aquino et al., 2008; Papa & Zafaralla, 2011; Papa et al., 2012b.

General geographic distribution: Well distributed in the tropics and subtropics of all continents ( Kořinek, 2002).

Distribution in the Philippines. Luzon: Batangas –Lake Taal; Benguet – Baguio; Bulacan –Bustos; Cagayan – Cagayan; Ilocos Norte –Paoay Lake: Laguna: IRRI compound; National Capital Region– Manila, La Mesa Dam, Marikina, and UP Diliman Campus; Nueva Ecija –Pantabangan Dam; Quezon – Pagbilao and Lucena; Sorsogon –Bulusan Lake. Cebu: Consolacion. Negros: Negros Oriental –Lake Balinsasayao; Negros Occidental – Bacolod. Leyte: Lake Danao. Mindanao: Lanao del Sur –Lake Lanao; and Surigao del Norte – Surigao del Norte.

Remarks. One of the species of Ceriodpahnia that develop cuticular defences in the presence of predators ( Zaret, 1969; Serpe et al., 2009; Rietzler et al., 2010). This species is considered as a group of sibling species with clear continental pattern ( Sharma & Kotov, 2013). Populations in different continents needs re-evaluation to determine taxonomic status in the species complex.

Ceriodaphnia pulchella Sars, 1862

Synonyms in Philippine literature: None.

Philippine records: Mamaril, 1986, 2001; Petersen & Carlos, 1984.

General geographic distribution: Common pelagic species in lakes, reservoirs and ponds worldwide. It is recorded from the Palearctic to tropical Africa and Asia to temperate South America ( Kořinek, 2002).

Distribution in the Philippines. Negros: Negros Occidental – Bacolod. Mindanao: Lanao del Sur –Lake Lanao.

Remarks. This species can be distinguished by noting the posterior margin of the carapace. A row of thin hairs continues till the rear edge is present, while the posterodorsal angle shows presence of a spine which is laid almost parallel to its edge ( Sharma, 2014).