Contributions to West European Cavibelonia (Mollusca, Solenogastres) with two new species Author Salvini-Plawen, Luitfried von Zoologie, Universität Wien, Althanstr. 14, A- 1090 Vienna (Austria) luitfried. salvini-plawen @ univie. ac. at text Zoosystema 2008 30 4 873 897 journal article 10.5281/zenodo.4525775 1638-9387 FFB7FFA2FF95FFF4165CFF8EFFC6077C 4525775 Genus Simrothiella Pilsbry, 1898 TYPE SPECIES . — Solenopus margaritaceus Koren & Danielssen, 1877 ( Odhner 1921 ; ICZN 1981 ). DIAGNOSIS. — With thick cuticle and acicular hollow sclerites (spicules) in two or more intercrossing layers; mouth opening within common atrio-buccal cavity, biserial radula with heterogeneous denticulation, ventral radula sack paired. Lateroventral foregut glandular organs bulbous with elongate epithelial glands interspersed by low supporting cells (modified type C; Salvini-Plawen 1972, 1978; Todt 2006). Secondary genital opening single. With copulatory stylets, dorso-terminal sense organ and respiratory organs.