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Hypergonia

Gastropoda - Cerithimorpha - Orthonemidae

Synonymy list
YearName and author
1892Murchisonia (Hypergonia) Donald p. 592
1926Hypergonia Longstaff pp. 540 – 541
1960Stegocoelia (Hypergonia) Knight et al. p. 293
2002Hypergonia Bandel p. 101
2002Hypergonia Sepkoski, Jr.
2017Hypergonia Wagner p. G985

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RankNameAuthor
kingdomAnimalia()
Bilateria
EubilateriaAx 1987
Protostomia
Spiralia
Schizocoela
phylumMollusca
RankNameAuthor
classGastropodaCuvier 1797
subclassProsobranchiaMilne-Edwards 1848
superorderCaenogastropodaCox 1959
orderCerithimorpha
familyOrthonemidae
genusHypergonia()

If no rank is listed, the taxon is considered an unranked clade in modern classifications. Ranks may be repeated or presented in the wrong order because authors working on different parts of the classification may disagree about how to rank taxa.

Diagnosis
ReferenceDiagnosis
J. D. Longstaff 1926Shell of small or medium size. turriculated, and greatly elongated. Whorls numerous, increasing slowly, slightly convex. Ornamentation consisting of foul' threads, the three lower stronger than the uppermost, and nearly equidistant. The sinus is situated between the upper of these three and the finer thread above. Base convex. Aperture subovoid. Columellar lip slightly curved.