Wavyrayed Lampmussel
Lampsilis fasciola
DIAGNOSTICS 9
SHELL
- size: mid-sized; maximum 100 mm, most under 60 mm
- thickness: moderately thick
- shape: oval, rounded profile throughout, with slightly pointed posterior end in males
- width: inflated
- surface: smooth
- beaks: inflated, extending above hinge line. sculptures: several indistinct fine wavy ridges
- color/markings: yellow, tightly covered with very fine green rays that are often wavy or interrupted/misaligned nearest posterior margin
- sexual dimorphism: females more rounded in posterior ventral margin
- pseudocardinal teeth: well developed
- lateral teeth: strong and thick,
- nacre: white or bluish-white
Soft parts: foot white. female lures very variable, at least four different forms that can occurs in the same locality:
- spotted minnow with tail extension
- uniform red-orange with tail (worm mimic)
- uniform black with tail (leach mimic)
- fringed brindled lure (aquatic insect larva mimic)
Similar species/lookalikes: Resembles young Lampsilis cardium or compact adults of L. silliquoidea More rounded shape, thicker shell and broken fine rays make the identification of this taxon relatively straightforward.
DISTRIBUTION/WATERSHEDS 10
ONTARIO
- Maitland R.
- Ausable R.
- Sydenham R.
- Thames R.
- Grand R.
Sources and Credits
- (c) Philippe Blais, some rights reserved (CC BY-NC-ND), uploaded by Philippe Blais
- (c) Evan M. Raskin, some rights reserved (CC BY), uploaded by Evan M. Raskin
- (c) Jeff Garner, some rights reserved (CC BY-NC), uploaded by Jeff Garner
- (c) Rob Curtis, some rights reserved (CC BY-NC-SA), uploaded by Rob Curtis
- (c) Daniel Folds, some rights reserved (CC BY-NC), uploaded by Daniel Folds
- (c) William Van Hemessen, some rights reserved (CC BY-NC), uploaded by William Van Hemessen
- (c) Pat Deacon, some rights reserved (CC BY-NC), uploaded by Pat Deacon
- (c) Matthew Ireland, all rights reserved, uploaded by Matthew Ireland
- Adapted by Philippe Blais from a work by (c) Wikipedia, some rights reserved (CC BY-SA), http://en.wikipedia.org/wiki/Lampsilis_fasciola
- (c) Philippe Blais, some rights reserved (CC BY-SA)
