St. Croix River mussels (Table under construction)
 
Scientific Name
Common Name
Federal

listing
Minnesota

listing
Wisconsin

listing
Reference
Actinonaias ligamentina mucket  
T
  
1, 2
Alasmidonta marginata elktoe  
T
  
1, 2
Amblema plicata threeridge      
1, 2
Anodonta suborbiculata flat floater  
?
?
Reference needed
Anodontoides ferussacianus cylindrical papershell      
1
Arcidens confragosus rock-pocketbook  
E
T
1, 2
Corbicula fluminea Asian clam      
1, 2
Cumberlandia monodonta spectaclecase  
T
E
1, 2
Cyclonaias tuberculata purple wartyback  
T
E
1, 2
Dreissena polymorpha zebra mussel      
2
Ellipsaria lineolata butterfly  
T
E
1, 2
Elliptio crassidens elephant-ear  
E
E
Reference needed
Elliptio dilatata spike  
SC
  
1, 2
Epioblasma triquetra snuffbox  
T
E
1, 2
Fusconaia ebena ebonyshell  
E
E
1, 2
Fusconaia flava wabash pigtoe      
1, 2
Lampsilis cardium pocketbook      
1, 2
Lampsilis higginsi Higgins eye
E
E
E
1, 2
Lampsilis siliquoidea fatmucket      
1, 2
Lampsilis teres yellow sandshell  
E
E
Reference needed
Lasmigona complanata white heelsplitter      
1, 2
Lasmigona compressa creek heelsplitter  
SC
  
1
Lasmigona costata fluted-shell  
SC
  
1, 2
Leptodea fragilis fragile papershell      
1, 2
Ligumia recta black sandshell  
SC
  
1, 2
Megalonaias nervosa washboard  
T
  
1, 2
Obliquaria reflexa threehorn wartyback      
1, 2
Obovaria olivaria hickorynut  
SC
  
1, 2
Plethobasus cyphyus sheepnose  
E
E
Reference needed
Pleurobema coccineum round pigtoe  
T
  
1, 2
Potamilus alatus pink heelsplitter      
1, 2
Potamilus ohiensis pink papershell      
1, 2
Pyganodon grandis giant floater      
1, 2
Quadrula fragosa winged mapleleaf
E
E
E
1, 2
Quadrula metanevra monkeyface  
T
T
1, 2
Quadrula nodulata wartyback  
E
T
1, 2
Quadrula pustulosa pimpleback      
1, 2
Quadrula quadrula mapleleaf      
1, 2
Simpsonaias ambigua salamander mussel  
T
T
1, 2
Strophitus undulatus squawfoot      
1, 2
Toxolasma parvus lilliput      
1, 2
Tritogonia verrucosa pistolgrip  
T
T
1, 2
Truncilla donaciformis fawnsfoot      
1, 2
Truncilla truncata deertoe      
1, 2
Utterbackia imbecillis paper pondshell      
Reference needed
Venustaconcha ellipsiformis ellipse  
T
T
1

References

1 - Bell Museum voucher specimen

2 - Observed by Macalester College

3 - Hornbach, D. J. 1991. Factors influencing the distribution of unionid mussels in the St. Croix River at Franconia, MN. MN DNR Natural Heritage and Nongame Research Program Report. 20 pp. + 20 Fig.'s.

4 - Havlik, M. E. 1993. Unionids and margaritiferids (Mollusca: Bivalvia) in the Saint Croix River bordering Minnesota at Afton and Wild River State Parks, 8-17 June 1992. MN DNR, Nongame Wild. Prog. Report 29000-9938. 41 pp.

5 - Heath, D. J. and P. W. Rasmussen. 1990. Results of base-line sampling of freshwater mussel communities for long-term monitoring of the Saint Croix National Scenic Riverway, Minnesota and Wisconsin. Report to NPS. 21 pp.

6 - Dunn, H. L. 1998. St. Croix River I-94 unionid relocations. Triannual Unionid Report 14: 11.

7 - Doolittle, T. C. J. 1988. Distribution and relative abundance of freshwater mussels in the Saint Croix National Scenic Riverway. Report to Cable Natural History Museum - Sigurd Olson Environmental Institute. Ashland, Wisconsin. 230 pp.

8 - Havlik, M. E. 1992. Unionid mollusks of the Saint Croix River near Hudson, WI. 4th Annual St. Croix River Research Rendezvous. [abstract]

9 - Hornbach, D. J. and T. Deneka. 1996. A comparison of a qualitative and a quantitative collection method for examining freshwater mussel assemblages. Journal of the North American Benthological Society 15(4): 587-596.