Table 1.
Accepted genera of Tergipedidae based on bibliography.
Table 2.
Previous classifications of Catriona, Cuthona and Trinchesia.
Table 3.
Minimum COI gene pairwise uncorrected p-distances amongst key species with names after analyses.
Table 4.
Minimum COI gene pairwise uncorrected p-distances amongst Fionidae genera.
Fig 1.
Phylogenetic hypothesis based on the combined dataset (H3+COI+16S) inferred by Bayesian analysis (BI).
Support values shown represent posterior probabilities from Bayesian inference and bootstrap values from Maximum likelihood (PP/ML). **Referred to as Cuthona sp. 13 in Pittman and Fiene [49].
Fig 2.
Molecular phylogeny based on the combined dataset (H3+COI+16S) inferred by Bayesian analysis (BI).
Only one specimen per species of Fionidae is shown. Support values shown represent posterior probabilities from Bayesian inference and bootstrap values from Maximum likelihood (PP/ML). Diversity of fionid radula morphology is also mapped. (A) Tenellia melanobrachia (CAS 177299), scale bar = 10 μm. (B) Tenellia gymnota (CAS 68909b), scale bar = 50 μm. (C) Tenellia yamasui (CAS 176738), scale bar = 50 μm. (D) Tenellia albocrusta (CAS 71754), scale bar = 3 μm. (E) Tenellia lagunae (CAS 71383), scale bar = 3 μm. (F) Cuthona nana (CAS 87192), scale bar = 50 μm. (G) Cuthonella cococachroma (CAS 71755a), scale bar = 50 μm. (H) Eubranchus sp. (CAS 114833), scale bar = 50 μm. (I) Abronica abronia (CAS 71753), scale bar = 3 μm.
Table 5.
New classification of Fionidae based on monophyletic groups, including nominal species studied in the present contribution.
Fig 3.
Photographs of the types species of the traditional genera of Fionidae recovered in this study (excluding Cuthonella and Murmania).
(A) Tenellia adspersa, photograph by Terrence M. Gosliner. (B) Tergipes tergipes, photograph by Terrence M. Gosliner. (C) Fiona pinnata, photograph by Terrence M. Gosliner. (D) Cuthona nana, photograph by Terrence M. Gosliner. (E) Calma glaucoides, photograph by Fredrik Pleijel. (F) Eubranchus tricolor, photograph by Terrence M. Gosliner.
Fig 4.
Photographs of the types species of the new genera of Fionidae.
(A) Abronica abronia, photograph by Terrence M. Gosliner. (B) Tergiposacca longicerata photograph by Terrence M. Gosliner. (C) Rubramoena amoena photograph by Bernard Picton.
Fig 5.
Different morphotypes of Tergiposacca longicerata sp. nov.
(A) Specimen from Tingloy, the Philippines (CASIZ 177605). (B) Specimen from Puerto Galera, Philippines (CASIZ 208490). (C) Specimen from Tingloy, the Philippines (CASIZ 186236). All the photographs by Terrence M. Gosliner.
Fig 6.
Scanning electron micrographs of the radula, jaws and masticatory edge of Tergiposacca longicerata sp. nov. (CASIZ 203083).
(A) Jaws of the specimen. (B) Detailed view of the masticatory border. (C-D) Radular teeth.
Fig 7.
Reproductive system of Tergiposacca longicerata sp. nov. (CASIZ 103768).
Abbreviations: al, albumen gland; am, ampulla; bc, bursa copulatrix; me, membrane gland; mu, mucous gland; od, oviduct; p, penis; pr, prostate; rs, receptaculum seminis; vd, vas deferens.