On the diversity of abyssal Dondersiidae (Mollusca: Aplacophora) with the description of a new genus, six new species, and a review of the family Author Cobo, M. Carmen 0000-0002-8481-2086 Department of Zoology, Genetics and Physycal Antrhopology, University of Santiago de Compostela. Rúa Lope Gómez de Marzoa, s / n. Campus Vida. 15782 Santiago de Compostela, Spain. & Department of Biological Sciences and Alabama Museum of Natural History, University of Alabama. 300 Hackberry Lane, Tuscaloosa, AL 35487, USA. & kmkocot @ ua. edu; https: // orcid. org / 0000 - 0002 - 8673 - 2688 mariadelcarmen.cobo@usc.es Author Kocot, Kevin M. 0000-0002-8673-2688 Department of Biological Sciences and Alabama Museum of Natural History, University of Alabama. 300 Hackberry Lane, Tuscaloosa, AL 35487, USA. & kmkocot @ ua. edu; https: // orcid. org / 0000 - 0002 - 8673 - 2688 kmkocot@ua.edu text Zootaxa 2021 2021-02-18 4933 1 63 97 journal article 8067 10.11646/zootaxa.4933.1.3 1ec7cff3-1bd4-4038-87fc-8a6d87f4c7ef 1175-5326 4547986 303F97F8-463C-4A52-B5D7-28154E492493
TABLE 3. Main diagnostic characters of the genera of Dondersiidae. (+) presence; (-) absence; (?) unknown; (/) the first is the one in the diagnosis in Salvini-Plawen & GarcíaÁlvarez (2007) and the second corresponds to different data found in the literature (species descriptions / redescriptions; referenced in the last column); (*) not observed in all the species but described as the characteristic radula of the genus (Scheltema et al., 2012).
ScalesRadulaCommon atrio-buccal cavityDorsoterminal sensory organCopulatory styletsRespiratory folds
4* denticlesHubrecht 1888; Pruvot 1891;
Dondersia Hubrecht, 1888Leaf, laminar, oar = pallet-shaped+Central denticles joined in the apex. Smaller lateral pair Radular plate serrated- / ++ / -- / +-Pilsbry 1898; Nierstrasz 1902, 1908; Thiele 1913c; Salvini-Plawen 1978; Scheltema 1999; Scheltema et al. 2012.; Klink et al. 2015
4 denticlesCentral denticles joined in the
Lyratoherpia Salvini-Plawen, 1978Leaf, oar-shaped and laminar+apex. Lateral pair that can be of the same longitude and that can also have joined apex Radular plate no serrated- / ++ / -++ /?Salvini-Plawen 1978
Nematomenia Simroth, 1893Leaf, oar-shaped, and laminar+ / -4 denticlesEach pair of denticles joined in the apex. All denticles of the same longitude.+ /?+ / ---Kowalesky 1881, Pruvot 1890; Pilsbry 1898; Heath 1911; Tiele 1913; Salvini-Plawen 1978
Ichthyomenia Pilsbry, 1898Leaf-shaped and smooth discoidal+2 denticlesCurved denticles+---
Stylomenia Pruvot, 1899Pedunculated leaf-shaped and smooth discoidal+2 denticlesCurved denticles almost joined in the apex-+-
Heathia Thiele, 1913Leaf, oar-shaped and laminar-+---
Micromenia Leloup, 1948Leaf-shaped, laminar and oar- shaped+2 denticlesCurved denticles almost joined in the apex-+-- / +Leloup 1948; Cobo & Kocot 2020
Helluoherpia Handl & Büchinger, 1996Lanceolated leaf- shaped+3 denticlesLateral denticles curved. Central denticle straight Narrow radular plate+---
Squamatoherpia Büchinger & Handl, 1996Almost discoidal leaf-shaped+3 denticlesStraight denticles Narrow plate-+--
6 denticlesDumbbell shaped basal plate
Inopinatamenia gen. n.Leaf-shaped scales+bearing 3 denticles in each side. Narrow, straight and equidistant denticles. The inner-most denticles are the smallest+--+