วงศ์ Chydoridae

This is a family of small cladocerans that occur predominantly in the littoral zone of vegetated water and occasionally in the benthic zones. Chydoridae have diverse morphology. Body oval, sub-oval, egg-shaped, enclosed by headshield and carapace. Rostrum well developed, fornices extended to cover the antennules and united with rostrum into a “beak”. Headshield with a variation of the main head pore and literal pores, mostly 2–3 or one or absent of main pores, connected or disconnected. Literal pores are minute or specifically shape, they are an important character to identify the species level. Antennule is covered by rostrum, hidden under rostrum. The antenna is relatively short, biramous, each branch has three segments, endopodite has five setae, and exopodite has three to five setae. Eyes and ocellus present, ocellus well developed sometimes as large as the eye, some larger, many case eye larger than ocellus. The labrum is well developed, a variety of shape and keeled. Five pairs of thoracic limbs. Thoracic limb I of males modified to have copulatory hook and copulatory brush setae in the outer distal lobe of thoracic limb I. Postabdomen is very important to help identify species, with a denticle in dorsal portion, preanal and postanal angles rather defined. Postabdominal claw has one or two basal spines (Smirnov, 1996; Tiang-nga, 2019).

สกุล Acroperus
 - Acroperus africanus Neretina & Kotov, 2015
 - Acroperus harpae (Baird, 1834)
สกุล Alona
 - Alona cf. dentifera (Sars, 1901)
 - Alona affinis (Leydig, 1860)
 - Alona guttata Sars, 1862
 - Alona intermedia Sars, 1862
 - Alona kotovi Sinev, 2012
 - Alona quadrangularis (O.F. Müller, 1776)
สกุล Alonella
 - Alonella clathratula Sars, 1896
 - Alonella excisa (Fischer, 1854)
 - Alonella nana (Baird, 1850)
สกุล Anthalona
 - Anthalona harti harti Van Damme, Sinev & Dumont, 2011
 - Anthalona milleri (Kiser, 1948)
 - Anthalona spinifera Tiang-nga, Sinev & Sanoamuang, 2016
 - Anthalona verrucosa (Sars, 1901)
สกุล Armatalona
 - Armatalona macrocopa (Sars, 1894)
สกุล Camptocercus
 - Camptocercus cf. australis Sars, 1896
 - Camptocercus uncinatus Smirnov, 1971
สกุล Celsinotum
 - Celsinotum macronyx (Daday, 1898)
สกุล Chydorus
 - Chydorus cf. eurynotus Sars, 1901
 - Chydorus obscurirostris Frey, 1987
 - Chydorus opacus Frey, 1987
 - Chydorus parvus Daday, 1898
 - Chydorus pubescens Sars, 1901
 - Chydorus reticulatus Daday, 1898
 - Chydorus sinensis Frey, 1987
 - Chydorus sphaericus (O.F. Müller, 1776)
 - Chydorus ventricosus Daday, 1898
สกุล Coronatella
 - Coronatella cf. monacantha (Sars, 1901)
 - Coronatella rectangula (Sars, 1862)
สกุล Dadaya
 - Dadaya macrops (Daday, 1898)
สกุล Disparalona
 - Disparalona caudata Smirnov, 1996
 - Disparalona chappuisi (Brehm, 1934)
 - Disparalona hamata (Birge, 1879)
 - Disparalona rostrata (Koch, 1841)
สกุล Dunhevedia
 - Dunhevedia crassa King, 1853
 - Dunhevedia serrata Daday, 1898
สกุล Ephemeroporus
 - Ephemeroporus barroisi (Richard, 1894)
 - Ephemeroporus hybridus (Daday, 1905)
 - Ephemeroporus phintonicus (Margaritora, 1969)
 - Ephemeroporus tridentatus (Bergamin, 1939)
สกุล Euryalona
 - Euryalona orientalis (Daday, 1898)
สกุล Flavalona
 - Flavalona cheni (Sinev, 1999)
 - Flavalona costata (Sars, 1862)
สกุล Graptoleberis
 - Graptoleberis testudinaria (Fischer, 1851)
สกุล Karualona
 - Karualona cf. karua (King, 1853)
 - Karualona iberica (Alonso & Pretus, 1989)
 - Karualona serrulata Van Damme, Maiphae & Sa-ardrit, 2013
สกุล Kurzia
 - Kurzia brevilabris Rajapaksa & Fernando, 1986
 - Kurzia longirostris (Daday, 1898)
สกุล Leberis
 - Leberis diaphanus (King, 1853)
 - Leberis punctatus (Daday, 1898)
สกุล Leydigia
 - Leydigia acanthocercoides (Fischer, 1854)
 - Leydigia australis Sars, 1885
 - Leydigia ciliata Gauthier, 1939
 - Leydigia laevis Gurney, 1927
สกุล Leydigiopsis
 - Leydigiopsis pulchra Van Damme & Sinev, 2013
สกุล Magnaspina
 - Magnaspina siamensis (Sinev & Sanoamuang, 2007)
สกุล Nicsmirnovius
 - Nicsmirnovius eximius (Kiser, 1948)
สกุล Notoalona
 - Notoalona freyi Rajapaksa & Fernando, 1987
 - Notoalona globulosa (Daday, 1898)
 - Notoalona pseudomacronyx Van Damme, Maiphae & Sa-ardrit, 2013
สกุล Ovalona
 - Ovalona archeri (Sars, 1888)
 - Ovalona cambouei (Guerne & Richard, 1983)
 - Ovalona pulchella (King, 1983)
สกุล Oxyurella
 - Oxyurella singalensis (Daday, 1898)
สกุล Picripleuroxus
 - Picripleuroxus laevis (Sars, 1862)
สกุล Pleuroxus
 - Pleuroxus quasidenticulatus Smirnov, 1996
 - Pleuroxus uncinatus Baird, 1850
สกุล Pseudochydorus
 - Pseudochydorus cf. globosus (Baird, 1843)
 - Pseudochydorus bopingi Sinev, Garibian & Gu, 2016
สกุล Rheoalona
 - Rheoalona mekongensis Sinev, Tiang-nga & Sanoamuang, 2017
สกุล Salinalona
 - Salinalona sarasinorum (Stingelin, 1900)


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