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Acuticosta
Classification
Phylum:
Mollusca
Class:
Bivalvia
Subclass:
Palaeoheterodonta
Order:
Unionoida (Freshwater mussels and relatives)
Superfamily:
Unionacea (freshwater mussels)
Family:
Unionidae
Subfamily:
Unioninae
Formal Genus Name and Reference:
Acuticosta SIMPSON, 1900
Type Species:
Unio sinensis LEA, 1868, OD
Images
(Click to enlarge in a new window)
Fig. D18,3. *A. sinensis (Lea), 3 a-d, LV ext., RV int., LV int., both valves dorsal, X0.8 (Haas).
Synonyms
Geographic Distribution
Rec., China
Age Range
Beginning Stage in Treatise Usage:
Rec.
Beginning International Stage:
Greenlandian
Fraction Up In Beginning Stage:
0
Beginning Date:
0.01
Ending Stage in Treatise Usage:
Rec.
Ending International Stage:
Meghalayan
Fraction Up In Ending Stage:
100
Ending Date:
0
Description
Solid, inflated, pointed behind, produced at center of base, with distinct nodulated posterior ridge in one species, beaks full with strong radial zigzag sculpture, cardinals low, ragged, lamellar teeth obliquely ridged and granular
References
Simpson, C. T., 1900, Synopsis of the najades or pearly freshwater mussels: U. S. Natl. Museum, Proc., v. 22, p. 501-1044, pl. 18.
Museum or Author Information
Classification
Phylum:
Mollusca
Class:
Bivalvia
Subclass:
Palaeoheterodonta
Order:
Unionoida (Freshwater mussels and relatives)
Superfamily:
Unionacea (freshwater mussels)
Family:
Unionidae
Subfamily:
Unioninae
Formal Genus Name and Reference:
Acuticosta SIMPSON, 1900
Type Species:
Unio sinensis LEA, 1868, OD
Images
(Click to enlarge in a new window)
Fig. D18,3. *A. sinensis (Lea), 3 a-d, LV ext., RV int., LV int., both valves dorsal, X0.8 (Haas).
Synonyms
Geographic Distribution
Rec., China
Age Range
Beginning Stage in Treatise Usage:
Rec.
Beginning International Stage:
Greenlandian
Fraction Up In Beginning Stage:
0
Beginning Date:
0.01
Ending Stage in Treatise Usage:
Rec.
Ending International Stage:
Meghalayan
Fraction Up In Ending Stage:
100
Ending Date:
0
Description
Solid, inflated, pointed behind, produced at center of base, with distinct nodulated posterior ridge in one species, beaks full with strong radial zigzag sculpture, cardinals low, ragged, lamellar teeth obliquely ridged and granular
References
Simpson, C. T., 1900, Synopsis of the najades or pearly freshwater mussels: U. S. Natl. Museum, Proc., v. 22, p. 501-1044, pl. 18.