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Jakoba is a group of jakobid flagellates. At present there is a single described species, Jakoba libera (Ruinen, 1938) Patterson, 1990.
Jakoba incarcerata described by Bernard et al. 2000 has now been renamed Andalucia incarcerata (Lara et al., 2006), while 'Jakoba bahamensis' / 'Jakoba bahamiensis' is not formally described. In fact, molecular phylogenies indicate that neither are specifically related to Jakoba libera (Simpson et al., 2002; Lara et al., 2006; Rodriguez-Ezpeleta, 2007; Simpson et al., 2008; Hampl et al. unpublished).
There are two cultures identified as Jakoba libera for which small subunit ribosomal RNA gene sequences are available - ATCC 50422 and WHOI DB9. The sequences are 95% identical, and are always recovered as a clade relative to other jakobids (Cavalier-Smith, 2003; Lara et al., 2006). The Jakoba libera morphospecies, so far, therefore, appears to be a clade.