Taouva maculosa, Bergh, 1884

Tay. maculosa stat. rest. comb. nov. .

A single specimen from Jamaica was here assigned in the later clade, originally identified as Discodoris hummelincki syn. nov. (Ev.Marcus and Er.Marcus, 1963) ( Lindsay et al. 2016), and represents here a synonym of Tao. maculosa . An additional Taouva species from the North-Eastern Atlantic is here recognized as a separate species, which most likely corresponds to the name Discodoris confusa Ballesteros, Llera and Ortea, 1985 here resurrected as Tay. confusa stat. rest. comb. nov. . Te genus Peltodoris is also enigmatic since the type species P. atromaculata forms a clade with near maximum support with Taouva . In fact, within the genus Taouva , some species were previously described as Peltodoris and later synonymized, such as Pe. crucis (Mörch, 1863) sensu Bergh, 1880 (Dayrat 2010) and Pe. hummelincki (this study). More genomic data are needed to assess this group and to assess the possible synonymy of Taouva to Peltodoris .

Another clade with high support, including taxa previously regarded as members of different groups, is the one comprising Discodoris rosi and Carminodoris boucheti , which were recovered sister to Gargamella immaculata Bergh, 1894 and Rostanga elandsia . Previous morphological studies have already proposed the inclusion of Dis. rosi in Rostanga because of the possession of elongate, slender lateral teeth, a character traditionally used to recognize Rostanga species ( Rudman and Avern 1989, Dayrat and Gosliner 2005, Dayrat 2011). Also, like the species of Rostanga , Dis. rosi , and C. boucheti possess caryophyllidia, which is otherwise missing in Discodoris ( Ortea et al. 2014) . However, the labial cuticle is smooth in Dis. rosi but armed with jaw elements in Rostanga and Discodoris ( Ortea et al. 2014) , except for R. elandsia , which has a smooth jaw lacking elements ( Garovoy et al. 2001). Tus, some authors maintained Dis. rosi in Discodoris , waiting for further clarification ( Sánchez-Tocino 2003, Cervera et al. 2004). Since both Dis. rosi and C. boucheti also cluster together with the type species Ga. immaculata , and because both C. boucheti and Gargamella present a smooth labial cuticle ( Perrone and Doneddu 1996, Ortea et al. 2006), as mentioned above for Dis. rosi and R. elandsia , we transferred this species to Gargamella as Ga. boucheti comb. nov., Ga. elandsia comb. nov., and Ga. rosi comb. nov..