Phyllidiella Bergh, 1869

Papu, Adelfia, Bogdanov, AleXander, Bara, Robert, Kehraus, Stefan, König, Gabriele M., YonoW, Nathalie & Wägele, Heike, 2022, Phyllidiidae (Nudibranchia, Heterobranchia, Gastropoda): an integrative taxonomic approach including chemical analyses, Organisms Diversity & Evolution (New York, N. Y.) 22 (3), pp. 585-629 : 604

Phyllidiella Bergh, 1869

According to our morphology and molecular-based results, we were able to identify six species of Phyllidiella : P. pustulosa ( Cuvier, 1804) , P. nigra ( van Hasselt, 1824) , P. zeylanica auctt. (not the original description by Kelaart, 1858, but used by authors in error, see below), P. rudmani Brunckhorst, 1993 , P. albonigra ( Quoy & Gaimard, 1832) , and P. hageni Fahrner & Beck, 2000 , and at least ten clades or subclades that could not be assigned to a named species (Figs. 9, 10, 11, 12). One unexpected result in our tree was the position of the single specimen of an unidentified Ceratophyllidia species from the Philippine Islands ( Hallas et al., 2017). It is placed within Phyllidiella (bootstrap value 79), which would render the genus Phyllidiella paraphyletic if the specimen was correctly identified to genus ( Figs. 13 , 14 , 15 , S 1 ). The preserved animal has pigment spots on the fleshy papillae consistent with being identifiable with Ceratophyllidia sp. 4 in Gosliner et al. (2015; T.M. Gosliner pers. comm.). All clades of Phyllidiella , including the un-named clades, were supported by high bootstrap values. A few species relationships are supported with highest bootstrap values, e.g., the sister-taxa relationship of P. pustulosa / P. nigra (100) (not supported by the CO1 data set), P. sp. c/ P. albonigra (99), and P. hageni as sister of P. sp. d/ P. sp. complex e (100).

Figures

Fig.13 Maximum likelihood tree of Phyllidiidae based on the concatenated data set of partial CO1 and 16S sequences. Terminal taxa on species level collapsed. Numbers at nodes are bootstrap values (1000 replicates). The genera are marked with the same colours as in Fig. S1. Numbers behind the species names indicate results of the

Fig. 14 Maximum likelihood tree of Phyllidiidae based on partial CO1 sequences. Terminal taxa on species level collapsed. Numbers at nodes are bootstrap values. The genera are marked with the same colours as in Fig. S1

Fig.15 Maximum likelihood tree of Phyllidiidae based on partial 16S sequences. Terminal taxa on species level collapsed. Numbers at nodes are bootstrap values. The genera are marked with the same colours as in Fig. S1

Fig. 1 Sampling locations in Sulawesi, Indonesia