Perotrochus is a genus of large sea snails with gills and an operculum, marine gastropod mollusks in the family Pleurotomariidae, the slit snails, (according to the taxonomy of the Gastropoda by Bouchet & Rocroi, 2005).
Description
The shell has a conical shape. The base is not umbilicated. The whorls are striate or granulate. The anal fasciole is submedian or below the middle. The slit is short.[2]
Species
Extant
According to the World Register of Marine Species (WoRMS), the following species with valid names are included within the genus Perotrochus:[3]
- † Perotrochus allani Marwick, 1928
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Perotrochus amabilis (Bayer, 1963)
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Perotrochus anseeuwi Kanazawa & Goto, 1991
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Perotrochus atlanticus Rios & Matthews, 1968
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Perotrochus caledonicus Bouchet & Métivier, 1982
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Perotrochus charlestonensis Askew, 1987
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Perotrochus deforgesi Métivier, 1990
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Perotrochus lucaya Bayer, 1965
- † Perotrochus maoriensis (Wilckens, 1922)
- † Perotrochus marwicki C. A. Fleming, 1970
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Perotrochus maureri Harasewych & Askew, 1993
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Perotrochus metivieri Anseeuw & Goto, 1995
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Perotrochus oishii (Shikama, 1973)
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Perotrochus pseudogranulosus Anseeuw, Puillandre, Utge & Bouchet, 2015
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Perotrochus quoyanus (Fischer & Bernardi, 1856)
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Perotrochus sunderlandorum Petuch & Berschauer, 2017
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Perotrochus tosatoi Anseeuw, Goto & Abdi, 2005
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Perotrochus vicdani Kosuge, 1980
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Perotrochus wareni Anseeuw, Puillandre, Utge & Bouchet, 2015
- Species brought into synonymy
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Perotrochus africanus (Tomlin, 1948): synonym of Bayerotrochus africanus (Tomlin, 1948)
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Perotrochus boucheti Anseeuw & Poppe, 2001: synonym of Bayerotrochus boucheti (Anseeuw & Poppe, 2001)
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Perotrochus diliculum Okutani, 1979: synonym of Bayerotrochus diluculum (Okutani, 1979)
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Perotrochus gemma F. M. Bayer, 1965: synonym of Perotrochus quoyanus quoyanus (P. Fischer & Bernardi, 1856)
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Perotrochus gotoi Anseeuw, 1990: synonym of Mikadotrochus gotoi (Anseeuw, 1990)
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Perotrochus hirasei (Pilsbry, 1903): synonym of Mikadotrochus hirasei (Pilsbry, 1903)
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Perotrochus indicus Anseeuw, 1999: synonym of Bayerotrochus indicus (Anseeuw, 1999)
- † Perotrochus masoni P. A. Maxwell, 1978: synonym of † Bayerotrochus masoni (P. A. Maxwell, 1978)
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Perotrochus midas Bayer, 1965: synonym of Bayerotrochus midas (Bayer, 1965)
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Perotrochus poppei Anseeuw, 2003: synonym of Bayerotrochus poppei Anseeuw, 2003
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Perotrochus pyramus Bayer, 1967: synonym of Bayerotrochus pyramus (Bayer, 1967)
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Perotrochus tangaroanus Bouchet & Métivier, 1982: synonym of Bayerotrochus tangaroanus (Bouchet & Métivier, 1982)
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Perotrochus teramachii Kuroda, 1955: synonym of Bayerotrochus teramachii (Kuroda, 1955)
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Perotrochus westralis (Whitehead, 1987): synonym of Bayerotrochus westralis (Whitehead, 1987)
Fossil
- †P. allani , Red Bluff Tuff, New Zealand
- †P. brachoi , Otekaike Limestone, New Zealand
- †P. eocenicus , Kattachi Formation, Japan
- †P. isseli Roverato 1900, Sassello (SV), Tertiary Piedmont Basin, Italy
- †P. masoni Maxwell 1978, Otekaike Limestone, New Zealand (synonym of † Bayerotrochus masoni (P. A. Maxwell, 1978))
- †P. sismondai , Alzey Formation, Germany
- †P. (Perotrochus) hanoverensis, Castle Hayne Formation, North Carolina
- †P. (Entemnotrochus), Capay Formation, California and Swan Cay Formation, Panama
- †Pleurotomaria (Entemnotrochus) baldwini, P. (E.) schencki & P. (E.) siletzensis, Siletz River Volcanics, Oregon[4]
References
Bibliography
- Hickman, C.S. 1976. Pleurotomaria (Archaeogastropoda) in the Eocene of the northeastern Pacific: a review of Cenozoic biogeography and ecology of the genus. Journal of Paleontology 50. 1090–1102. .
