By David Paul Whistler, Xiaoming Wang, Lawrence G Barnes
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Maddocks, pers. ), which in turn has been placed in its own suborder, the Sigilliocopina (see Martens, 1992). ’ ’’ The spelling we use for the suborder was ﬁrst employed by Cohen et al. (1998). CLASS MALACOSTRACA Because of their size and numbers, malacostracans have been the subject of a huge number of classiﬁcatory and phylogenetic studies employing morphological characters, molecular characters, or both. , 2000; Richter and Scholtz, in press), although differing opinions can certainly be found.
However, other workers are quick to point out Rationale that reduction in body segmentation has occurred independently as a functional adaptation in many different and unrelated crustacean taxa and that the unique features of the Ostracoda argue for their recognition as a separate class (see especially discussions in Newman, 1992; Boxshall, 1992; Wilson, 1992). Treatment of ostracodes as a subclass of the Maxillopoda has additional problems as well. Wilson (1992) could not ﬁnd support for placing the former within the latter based on morphological grounds (although Schram and Hof, 1998, point out errors in Wilson’s analysis that, if corrected, would indeed group ostracodes with one cluster of Maxillopoda).
Ho (pers. ). The family Cucumaricolidae was transferred here from the Poecilostomatoidea following Huys and Boxshall (1991), among other such changes (see their book). -S. Ho, pers. ; G. Boxshall, pers. ). Ho (1994b) discussed cyclopoid phylogeny (based on cladistic analysis of the 10 families known at that time) and concluded that parasitism had arisen twice in the group. Papers describing new harpacticoid taxa (or elevating former subfamilies) include Huys (1990a, Adenopleurellidae; 1990b, Hamondiidae, Ambunguipedidae; 1990c, Cristacoxidae, Orthopsyllidae), Por (1986, Argestidae, Huntemanniidae, Paranannopidae [revised by Huys and Gee, 1996], Rhizothricidae [splitting the polyphyletic Cletodidae]), Fiers (1990, Cancrincolidae), Huys and Willems (1989, Laophontopsidae, Normanellidae; see also Huys and Lee, 1999), Huys and Iliffe (1998, Novocriniidae), Huys (1988, Rotundiclipeidae), Huys (1993, Styracothoracidae), and Huys (1997, Superornatiremidae).
An updated classification of the recent crustacea by David Paul Whistler, Xiaoming Wang, Lawrence G Barnes