Page last updated
Mon 06 May 2024

The Freshwater Mussels (Unionoida) of the World (and other less consequential bivalves)

FM(U)otW(aolcb) is the web version of the MUSSEL Project Database. Follow the links to browse the data or use the custom Google search field. Either way, you win!

This page documents data for R.I. Johnson (1983), such as genera and species attributed to that publication (including known misspellings, misidentifications, and other unavailable names) as well as taxonomic opinions, if available. Taxonomic opinions refer to uses of genera and species as valid and invalid in that work.

Search the database pages:

Publication information

Johnson, R.I. 1983. Margaritifera marrianae, a new species of Unionacea (Bivalvia: Margaritiferidae) from the Mobile-Alabama-Coosa and Escambia river systems, Alabama. Occasional Papers on Mollusks 4(62): 299-304.

Click here for online access.

Attributed Species Names

Margaritifera marrianae R.I. Johnson, 1983
R.I. Johnson, 1983, Occ. Pap. Moll. 4(62): 300, pl. 41, figs. 2-3.
Type(s): HOLOTYPE MCZ_28491, Hunter’s Creek, 8 mi SW of Evergreen, Conecuh Co., Ala.

Taxonomic Opinions

Margaritifera marrianae new species
+ Margaritana hembeli Simpson, 1900

Page updated: 09:09:36 Mon 06 May 2024

NSF icon MUSSEL icon
"Making the world a better place, one mollusk at a time."