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Monotis (Entomonotis)

Bivalvia - Pectinida - Monotidae

Synonymy list
YearName and author
1935Monotis (Entomonotis) Marwick
1978Monotis (Entomonotis) Grant-Mackie
1990Monotis (Entomonotis) Grant-Mackie and Silberling
2011Monotis (Entomonotis) McRoberts p. 644

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RankNameAuthor
kingdomAnimalia()
Bilateria
EubilateriaAx 1987
Protostomia
Spiralia
superphylumLophotrochozoa
phylumMollusca
classBivalvia
Eubivalvia
subclassAutobranchia(Groblen 1894)
infraclassPteriomorphia(Beurlen 1944)
RankNameAuthor
OstreomorphiFerussac 1822
OstreioniFerussac 1822
OstreataFerussac 1822
superorderOstreiformiiFerussac 1822
orderPectinida(Gray 1854)
suborderAnomiidinaGray 1854
MonotoideiWaterhouse 2001
familyMonotidaeFischer 1887
genusMonotisBronn 1830
subgenusEntomonotisMarwick 1935

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.

Subg. †Monotis (Entomonotis) Marwick 1935
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Monotis (Entomonotis) ochotica Keyserling 1848
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Invalid names: Monotis acutecostata Trechmann 1918 [synonym], Monotis ambigua Teller 1886 [synonym], Monotis longa Kiparisova 1932 [synonym], Monotis sparsicostata Teller 1886 [synonym], Monotis wingia Bando 1961 [synonym]
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Invalid names: Monotis aequicostata Kiparisova 1940 [synonym], Monotis eurhachis Teller 1886 [synonym]
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Invalid names: Monotis gigantea Avias 1953 [synonym], Monotis intermedia Trechmann 1918 [synonym], Monotis sibirica Bytschkov 1966 [synonym]
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Invalid names: Monotis semiradiata Ichikawa 1958 [synonym]
Diagnosis
ReferenceDiagnosis
Grant-Mackie and Silberling 1990Medium- to large-size Monotis of obliquely suboval outline. Strongly inequivalve, having a conspicuously inflated left valve, the umbo of which projects dorsally well above the hingeline, and a flat to slightly inflated right valve possessing a much less conspicuous umbo. Posterior ear moderate to proportionally large, smooth, well separated from the rest of the valve by a distinct posterior sinus. Radial ribs relatively broad, rounded, and well differentiated; on some species ribs weaken and fade posteriorly. Concentric striae generally absent or poorly developed.