Moinidae Goulden 1968

Soesbergen, Martin & Sinkeldam, Jos, 2019, An annotated checklist of the Branchiopoda (Crustacea) of the Dutch Caribbean islands, Zootaxa 4701 (1), pp. 25-34 : 28

Family Moinidae Goulden 1968

Moina ciliata Daday, 1905 . Rammner (1933) used the name Moina dubia macrocephala to describe the animals he found in Bonaire. This name is synonymous with Moina micrura ( Alonso 1996) . Goulden (1968) defines this taxon of Rammner (1933) as Moina micrura ssp. ciliata Daday, 1905 . This is a valid subspecies ( Kotov et al. 2013) and probably a good species. The armature of the postabdomen is different to that of M. micrura ( Zoppi de Roa & Vasquez 1991) . It is the most common cladoceran species on Bonaire ( Rammner, 1933) and was found at Tanki Onima, Pos Labris, Pos Ichi, and Pos Calbas on Klein Bonaire. All locations are muddy oligohaline waters. Variation within M. micrura is huge ( Steuer 1939; Elena et al. 2015). M. micrura is a species-complex (Petrusek et al. 2004; Elías-Gutiérrez et al. 2008 and 2019). M. micrura s.str. is a European species, distinct from North and South American populations ( Elías-Gutiérrez et al. 2019).

Moina cf. micrura Kurz, 1874 . M. cf. micrura is found in Freshpond North and South on St. Maarten. The abdomen is bold without a trace of the rows of hairs that characterize the subspecies M. m. ciliata . The nominate is also recorded from Haiti ( Goulden 1968). M. micrura is a species-complex (Petrusek et al. 2004; Elías-Gutiérrez et al. 2008 and 2019). M. micrura s.str. is a European species ( Elías-Gutiérrez et al. 2019). This taxon is called M. cf. micrura .

Moina wierzejskii Richard, 1895 . Moina macrocopa was recorded in Bubali-lake on Aruba ( Van Halewijn et al. 1992). This species was not present in South America nor in the Caribbean ( Goulden 1968). It is replaced in the neotropics by Moina wierzejskii . M. m. americana Goulden, 1968 is present in North-America. M. m. macrocopa has only recently invaded South-America ( Vignatti et al. 2013).

Both species are characterized by a supra-ocular dome and have hairs on the head. The second author analyzed the samples from Bubali-lake ( Van Halewijn et al. 1992) and used a European key, at that time, to identify these animals. The samples could not be found in the archive of the plankton samples of Alterra, located in the National Hortus Botanicus at Meise ( Belgium). The name is M. wierzjejskii .