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Horaiclavidae
Taxonomy
Horaiclavidae was named by Bouchet et al. (2011). It is extant. Its type is Horaiclavus.
It was assigned to Conoidea by Bouchet et al. (2011).
It was assigned to Conoidea by Bouchet et al. (2011).
Subtaxa
Anacithara, Anguloclavus, Aoteadrillia, Austrocarina, Austrodrillia, Buchema, Carinapex, Ceritoturris, Coronacomitas, Cytharoclavus, Darrylia, Graciliclava, Haedropleura, Horaiclavus (type genus), Inkinga, Inodrillia (syn. Inodrillara, Inodrillina), Iwaoa, Marshallena (syn. Sugitanitoma), Mauidrillia, Micropleurotoma, Naskia, Nquma, Paradrillia (syn. Alticlavatula, Vexitomina), Pseudexomilus, Psittacodrillia, Striatoguraleus, Thelecythara
Synonymy list
| Year | Name and author |
|---|---|
| 2011 | Horaiclavidae Bouchet et al. pp. 293 - 296 |
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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.
Fm. Horaiclavidae Bouchet et al. 2011
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G. Anacithara Hedley 1922
G. Anguloclavus Shuto 1983
G. Aoteadrillia Powell 1942
G. Austrocarina Laseron 1954
G. Buchema Corea 1934
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Buchema interstrigata Smith 1882
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Invalid names: Drillia (Neodrillia) euphanes Melvill 1923 [synonym]
G. Carinapex Dall 1924
G. †Ceritoturris Dall 1924
G. Coronacomitas Shuto 1983
G. Cytharoclavus Kuroda and Oyama in Kuroda Habe and Oyama 1971
G. Darrylia Garcia 2008
G. Graciliclava Shuto 1983
G. Haedropleura Monterosato 1883
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†Haedropleura orientalis Vredenburg 1923
†Haedropleura septangularis Montagu 1803
G. Horaiclavus Oyama 1954
G. Inkinga Kilburn 1988
G. Inodrillia Bartsch 1943
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†Inodrillia aepynota Dall 1889
Invalid names: Inodrillara Bartsch 1943 [synonym], Inodrillina Bartsch 1943 [synonym]
G. Iwaoa Kuroda 1940
G. Micropleurotoma Thiele 1929
G. Naskia Sysoev and Ivanov 1985
G. Nquma Kilburn 1988
G. Paradrillia Makiyama 1940
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Invalid names: Alticlavatula MacNeil 1960 [synonym], Vexitomina Powell 1942 [synonym]
G. Pseudexomilus Powell 1944
G. Psittacodrillia Kilburn 1988
G. Striatoguraleus Kilburn 1994
Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| P. Bouchet et al. 2011 | Shell generally small, 5–25 mm, usually 7–15 mm high, shortly claviform, with relatively low spire and a short, truncated, poorly differentiated siphonal canal. Subsutural ramp usually poorly differentiated. Axial sculpture almost always present, usually as strong sinuate ribs. Spiral sculpture normally weak or obsolete, often with glossy shell surface. Anal sinus on subsutural slope, weak to moderately deep, often constrained by callus. Protoconch of up to 3.5 medially carinate but otherwise smooth whorls when multispiral, but usually paucispiral and smooth. Operculum with terminal nucleus. Radular formula: 1-0-0-0-1. Marginal teeth duplex, with lanceolate major limb and usually narrow accessory limb, which is inserted in a shallow socket. Major limb often with angulation lateral to the place of accessory limb insertion. Rarely (some Paradrillia, cf. Kilburn, 1988, Fig. 17; Inkinga, Fig. 19B) the additional limb is of similar size to the major limb and the teeth become trough-shaped in transverse section, with a collar near the base (arrows in Fig. 19B). In several species of Horaiclavus the radular apparatus is absent. |