Heliacus
Genus of sea snails
From Wikipedia, the free encyclopedia
Heliacus is a genus of gastropods belonging to the family Architectonicidae.[1][2]
| Heliacus | |
|---|---|
| |
| Shell of Heliacus fallaciosus | |
Scientific classification  | |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Gastropoda |
| Family: | Architectonicidae |
| Genus: | Heliacus d'Orbigny, 1842 |
| Type species | |
| Solarium herberti Deshayes, 1830 | |
| Synonyms[1] | |
| |
General characteristics
(Original description in French) The operculum is corneous and conical, increasing in diameter from the apex to the base; its inner side is smooth with a central point; all the rest is composed of spirally coiled lamellae which decrease in diameter and are always fringed at their circumference. The shell is usually higher than the other sundials, with a narrower umbilicus.[3]
(Described as Gyriscus in Latin) The shell is turbinate, conico-turreted, and umbilicate; the apex is blunt, with the tip involuted; the whorls are rounded and transversely girdled; the aperture is subcircular, with the margins sharp and joined by a callus, the columellar lip being reflected. The operculum is corneous (horny), multispiral on the upper part, and provided with a stylet-like process on the lower part.[4]
Distribution
The Heliacus species are typically found in warm-temperate to tropical waters globally, from the intertidal zone down to the subtidal and occasionally deeper.[2]
Species
- † Heliacus albertinae (Sacco, 1892)
- Heliacus anaglyptus Woodring, 1959 [citation needed]
- † Heliacus angularis Makiyama, 1927
- † Heliacus antu S. N. Nielsen & Frassinetti, 2007
- Heliacus areola (Gmelin, 1791)
- Heliacus asteleformis (Powell, 1965)
- † Heliacus bahamondei Frassinetti & Covacevich, 1981
- †Heliacus berthae (O. Boettger, 1902)
- Heliacus bisulcatus (d'Orbigny, 1842)
- Heliacus caelatus (Hinds, 1844)
- Heliacus cerdaleus (Melvill & Standen, 1903)
- † Heliacus chonos S. N. Nielsen & Frassinetti, 2007
- Heliacus corallinus Garrard, 1978
- Heliacus costatus (Schepman, 1909)
- Heliacus cylindricus (Gmelin, 1791)
- † Heliacus darraghi Garrard, 1978
- † Heliacus deningeri (K. Martin, 1914)
- Heliacus discoideus (Pease, 1868)
- Heliacus enoshimensis (Melvill, 1891)
- Heliacus fallaciosus (Tiberi, 1872)
- Heliacus fenestratus (Hinds, 1844)
- Heliacus geminus Bieler, 1993
- † Heliacus globosus Harzhauser & Landau, 2023
- Heliacus hyperionis Bieler, 1993
- Heliacus imperfectus Suter, 1917 [citation needed]
- Heliacus implexus (Mighels, 1845)
- Heliacus infundibuliformis (Gmelin, 1791)
- Heliacus jeffreysianus (Tiberi, 1867)
- † Heliacus lowei Durham, 1950
- Heliacus madurensis (Schepman, 1909)
- Heliacus malani (Dautzenberg, 1910)
- Heliacus mazatlanicus Pilsbry & H.N.Lowe, 1932
- Heliacus mighelsi (Philippi, 1853)
- Heliacus miser (Dujardin, 1837)
- † Heliacus morningtonensis Garrard, 1978
- Heliacus nereidis Bieler, 1993
- Heliacus oceanitis Bieler, 1993
- † Heliacus otwayanus Garrard, 1978
- Heliacus otwayanus Garrard, 1978
- Heliacus planispira Pilsbry & H.N.Lowe, 1932
- Heliacus ponderi Garrard, 1978
- Heliacus proteus Bieler, 1993
- † Heliacus radiatus (Borson, 1821)
- † Heliacus reticulatus Dockery, 1993
- † Heliacus robertsae Durham, 1950
- Heliacus reticulatus Dockery, 1993
- Heliacus rotula Kilburn, 1975
- Heliacus splendidus Poppe & Tagaro, 2026
- † Heliacus stefanmeszarosi Biskupič, 2024
- Heliacus sterkii (Pilsbry & Vanatta, 1908)
- Heliacus stramineus (Gmelin, 1791)
- † Heliacus taverai Frassinetti & Covacevich, 1981
- Heliacus trochoides (Deshayes, 1830)
- Heliacus turritus Bieler, 1987
- Heliacus variegatus (Gmelin, 1791)
- Heliacus verdensis Bieler, 1984
- Heliacus virgatus (Hinds, 1844)
- † Heliacus wannonensis (Tenison Woods, 1879)
- Heliacus willianseverii Tenório, Barros, Francisco & Silva, 2011
- Heliacus worsfoldi Quinn, 1981
