Daphnia pulex CYPs are divided into fourclans; mitochondrial, CYP2, CYP3, and CYP4. The four clans can befurther subdivided into 13 families, 19 subfamilies, and 78 isoforms, including pseudogenes. The numbers represented above include thepseudogenes, of which there is one pseudogene in each of the CYP2, 3, and 4 clans.
Baldwin et al. BMC Genomics 2009 10:169 doi:10.1186/1471-2164-10-169