Stilifer is a genus of small ectoparasitic sea snails that used to belong in the family Stiliferidae. Most recent sources consider it part of the family Eulimidae, which also belongs to the superfamily Eulimoidea.
Description
"The imperforate, hyaline, thin shell has ab ovoid or elongated shape. It is smooth and polished. It contains numerous whorl. The apex is very sharp, sometimes bent. The nucleus is sinistral. The body whorl is globular. The aperture is suboval. The inner lip is smooth and arcuated. The outer lip is slightly sinuous, thin, and simple. There is no operculum.
The body of the animal is ciliated. The tentacles are slender, subulate, with eyes sessile at their outer bases. The mantle is reflected upon and more or less surrounding the shell, forming a siphonal lobe on the right side. The foot is linguiform, narrow and tubular in front, where it extends much beyond the head, attenuated behind, with a median groove below. The verge is sharp, elongated, resembling a tentacle.
This genus is commensal or parasitic in its habits, occurring on Echinoderms.
Species
The World Register of Marine Species (WoRMS) includes the following species with accepted names in the genus Stilifer:
- Stilifer akahitode, <small>Habe & Masuda, 1990</small>
- Stilifer astericola, <small>Broderip, 1832</small>
- Stilifer barroni, <small>A. Adams, 1854</small>
- Stilifer birtsi, <small>Preston, 1904</small>
- Stilifer celebensis, <small>Kükenthal, 1897</small>
- Stilifer concavus, <small>Warén, 1980</small>
- Stilifer guentheri, <small>Angas, 1877</small>
- Stilifer inflatus, <small>Warén, 1980</small>
- Stilifer kawamurai, <small>Habe, 1976</small>
- Stilifer linckiae, <small>P. Sarasin & F. Sarasin, 1887</small>
- Stilifer ovoideus, <small>H. Adams & A. Adams, 1853</small>
- Stilifer pisum, <small>Habe, 1953</small>
- Stilifer quadrasi, <small>O. Boettger, 1893</small>
- Stilifer utinomi, <small>Habe, 1951</small>
- Stilifer variabilis, <small>O. Boettger, 1893</small>
Species brought into synonymy:
- Stilifer abyssorum <small>Locard, 1897</small>: synonym of Pisolamia brychia <small>(Watson, 1883)</small>
- Stilifer acicula <small>Gould, 1849</small>: synonym of Melanella acicula <small>(Gould, 1849)</small>
- Stilifer attenuata <small>Sowerby, 1878</small>: synonym of Scalenostoma subulatum <small>(Broderip, 1832)</small>
- Stilifer auricula <small>Hedley, 1907</small>: synonym of Microstilifer auricula <small>(Hedley, 1907)</small>
- Stilifer brychius <small>Watson, 1883</small>: synonym of Pisolamia brychia <small>(Watson, 1883)</small>
- Stilifer bulbiformis <small>Sowerby, 1878</small>: synonym of Scalenostoma subulatum <small>(Broderip, 1832)</small>
- Stilifer crotaphis <small>Watson, 1886</small>: synonym of Scalenostoma lodderae <small>(Petterd, 1884)</small>
- Stilifer curtus <small>(A. E. Verrill, 1882)</small>: synonym of Pelseneeria stimpsonii <small>(A. E. Verrill, 1872)</small>
- Stilifer deformis <small>Pease, 1867</small>: synonym of Scalenostoma subulatum <small>(Broderip, 1832)</small>
- Stilifer exarata <small>A. Adams, 1855</small>: synonym of Scalenostoma subulatum <small>(Broderip, 1832)</small>
- Stilifer fastigiata <small>Sowerby, 1878</small>: synonym of Scalenostoma subulatum <small>(Broderip, 1832)</small>
- Stilifer kochianus <small>G. B. Sowerby III, 1901</small>: synonym of Stilifer variabilis <small>O. Boettger, 1893</small>
- Stilifer lodderae <small>Petterd, 1884</small>: synonym of Scalenostoma lodderae <small>(Petterd, 1884)</small>
- Stilifer minima <small>Dall, 1927</small>: synonym of Ophieulima minima <small>(Dall, 1927)</small>
- Stilifer minimus <small>Dall, 1927</small>: synonym of Ophieulima minima <small>(Dall, 1927)</small>
- Stilifer minuta <small>Dall, 1927</small>: synonym of Pelseneeria minuta <small>(Dall, 1927)</small>
- Stilifer mittrei <small>Petit de la Saussaye, 1851</small>: synonym of Echineulima mittrei <small>(Petit de la Saussaye, 1851)</small>
- Stilifer neozelanica <small>Dell, 1956</small>: synonym of Iphitus neozelanicus <small>(Dell, 1956)</small>
- Stilifer ophidiastericola <small>Habe, 1951</small>: synonym of Stilifer utinomi <small>Habe, 1951</small>
- Stilifer orbiculatus <small>Hedley, 1907</small>: synonym of Fossarella orbiculatus <small>(Hedley, 1907)</small>
- Stilifer palucciae <small>P. Fischer, 1864</small>: synonym of Echineulima palucciae <small>Small text(P. Fischer, 1864)</small>
- Stilifer parva <small>Schepman, 1909</small>: synonym of Stilapex parva <small>(Schepman, 1909)</small>
- Stilifer perdepressus <small>Dall, 1925</small>: synonym of Pelseneeria perdepressa <small>(Dall, 1925)</small>
- Stilifer petterdi <small>Tate & May, 1901</small>: synonym of Scalenostoma lodderae <small>(Petterd, 1884)</small>
- Stilifer polaris <small>Hedley, 1916</small>: synonym of Stilapex polaris <small>(Hedley, 1916)</small>
- Stilifer pyramidalis <small>Reeve, 1859</small>: synonym of Scalenostoma subulatum <small>(Broderip, 1832)</small>
- Stilifer robusta <small>Petterd, 1884</small>: synonym of Scalenostoma lodderae <small>(Petterd, 1884)</small>
- Stilifer sibogae <small>Schepman & Nierstrasz, 1909</small>: synonym of Pelseneeria sibogae <small>(Schepman & Nierstrasz, 1909)</small>
- Stilifer solida <small>Sowerby, 1878</small>: synonym of Scalenostoma subulatum <small>(Broderip, 1832)</small>
- Stilifer speciosus <small>H. Adams, 1869</small>: synonym of Scalenostoma subulatum <small>(Broderip, 1832)</small>
- Stilifer sphaeroconcha <small>Habe, 1974</small>: synonym of Tropiometricola sphaeroconcha <small>(Habe, 1974)</small>
- Stilifer subangulatus <small>A. Adams, 1855</small>: synonym of Scalenostoma subulatum <small>(Broderip, 1832)</small>
- Stilifer subulatus <small>Broderip, 1832</small>: synonym of Scalenostoma subulatum <small>(Broderip, 1832)</small>
- Stilifer thielei <small>Sturany, 1903</small>: synonym of Stilapex thielei <small>(Sturany, 1903)</small>
- Stilifer thomasiae <small>Sowerby, 1878</small>: synonym of Scalenostoma subulatum <small>(Broderip, 1832)</small>
- Stilifer variciferus <small>Hedley, 1899</small>: synonym of Scalenostoma subulatum <small>(Broderip, 1832)</small>
- Stilifer verrilli <small>Dall, 1927</small>: synonym of Pelseneeria stimpsonii <small>(A. E. Verrill, 1872)</small>
References
- Broderip, 1832 (in Broderip & Sowerby) Proceedings of the Committee of Science and Correspondence of the Zoological Society of London, 2: 60.