TABLE 7 in Epibiontic life on intertidal Setaphyes kielensis and S. dentatus (Kinorhyncha, Pycnophyidae) from Sylt, North Sea, Germany, with a description of a new species of Trematosoma (Ciliophora, Acinetidae) and a redescription of Cothurnia buetschlii (Ciliophora, Vaginicolidae)

TABLE 7. Comparison of characters of species of Trematosoma after original descriptions and additional references. Unique characters marked in bold. Abbreviations: -, information about character not available; +, character present; [], information from additional reference(s).?, character appeared questionable or unclear in our interpretation; SEM, scanning electron microscopy. Species CharacterT. amphiasci (Precht, 1935)T. bocqueti (Guilcher, 1950)T. complatana (Gruber, 1884)T. constricta (Collin, 1909)T. falcata (Jankowski, 1981)T. ovata (Pritchard, 1852)T. pusilla (Maupas, 1881)T. rotunda (Allgén, 1951)T. husselae sp. nov.Shape of lorica/ specimencalyciformalmost rectangular, slightly indented in middle part apically and around stalkalmost rectangular, lorica expressed only as basal disk; [basal lorica convex; zooid can leave stalk, and live free or attach with tentacles]bowl-shaped, anterior waist-like indentation on each lateral edge, slightly indented around stalk, zooid protruding anteriorlybowl-shaped with broad base and protruding anteriorlyovate, bowlshaped, bluntly truncate apicallycalyciform with zooid protruding anteriorlyovatecalyciformLorica, surface----regularly annulated surface with ca. 20 rings--surface finely annulatedsurface with slightly elevated rings (SEM only)Length of lorica/ specimen27–50 µm?, [31–33 µm]20 µm; [ca. 20 µm]<30 µm50–60 µm; [10–35 µm; 25–27 µm]35–50 µm--; [60 µm; 47–58 µm]27–33 µm; [ca. 19 µm]30–47 µmWidth of lorica27–50 µm?, [12–15 µm]30 µm; [20 µm]30 µm45 µm; [89–217 µm?; 26–30 µm]40–47 µm--; [50 µm; 41–50 µm]23–29 µm; [ca. 13 µm]26–34 µmPosition of zooid in loricasmall cavity at basefilling loricafilling loricafilling loricafilling lorica-small [very large] cavity at base of loricazooid in anterior 1/2–2/3 of loricafilling lorica, occasionally small cavity at baseLength of stalkas long as lorica; [9–25 µm]short; [4.5 µm]longer than specimen; [60 µm or attached with tentacles only]80 µm; [138–148 µm; 69–126 µm]26 µmabout as long as lorica18 µm; [10–20 µm]7–16 µm; [ca. 4 µm]5–7 µmWidth of stalk8 µm; [3–4 µm]-; [4 µm]--; [20–35 µm]thinslender1 µm; [2 µm]2 µm [ca. 3 µm]3–4 µmStalk, other characters--; [basal disc 7–10 µm diameter]-longitudinal striaesmall basal disk[smooth]-finely annulated; [transversal striae]longitudinal striae, no basal diskArrangement of tentaclesone row left and right with ca. 9 tentacles each, small gapone row left and right with 18–20 tentacles each, small gap; [2 short and 2 or 3 long tentacles at each corner of lorica, broad gap]one row left and right with ca. 10 tentacles occurring also laterally, broad gapone row left and right with small gap; [and 11–14 or 8–28 tentacles]one row left and right with 5–6 tentacles each, small gapsingle row, ca. 11single row, 4–5 tentaclesca. 12–19 tentacles in one? rowone row left and right with 8–16 tentacles each, small gapLength of tentaclesshort; [11– 12 µm, thick and 48–50 µm, thin]-; [11–12 µm or 48–50 µm]-; [50 µm]long; [30–69 µm; 17–31 µm]very short-short; [10 µm]4–6 µm; [4 µm]4–6 µmEndogenous buddingnot observed yet+, embryo 25 µm x 10 µmnot observed yet+not observed yetnot observed yet+not observed yet+, embryo 13–15 µm x 8–10 µmOriginal basibiont; [additional basibionts]CopepodaCopepoda; [on debris]-; [Hydrozoa; Bryozoa]Crustacea: Paguridaegreen algaeHydrozoaBryozoa; [algae; Hydrozoa; tubes of Polychaeta; Copepoda]NematodaKinorhynchaOriginal location(s); [additional location]Baltic Sea: Kiel Bight; [Adriatic Sea]English Channel: Roscoff; [Western Australia]Ligurian Sea: GenuaEnglish Channel: Roscoff; Mediterranean Sea: BanyulArctic Ocean, MurmanskNorth Sea: United KingdomAlgeria: Algier; [Adriatic Sea]Falkland Islands; [India, Sundarbans]North Sea: Sylt]Remarks, additional referencesFernandez- Leborans et al. 2012Batisse 1972; Post et al. 1983Collin 1912; Curds 1985original description brief, illustration and more detailed description in Collin 1912; Fernandez- Leborans & Gabilondo 2006; Fernandez- Leborans et al. 2013described without name by Alder 1851; Curds 1985Curds 1985; Fernandez- Leborans et al. 2012Curds 1985: Acineta ovoidea Allgén, 1951 = synonym of T. rotunda, because just lateral view; Ghosh & Mandal 2019this paper ...Continued on the next page