reeveiana-lure.jpg (44381 bytes) The female broken-rays mussel displays a mantle flap lure that convincingly mimics a small fish.  The host fishes include smallmouth bass and rock bass.  These predators attack the lure, rupturing the marsupia that lie between the mantle flap and releasing the glochidia.   
reev002.jpg (57161 bytes) Animated GIF
Want to see a movie but have a slow connection?  This "movie" file of Lampsilis reeveiana lure display is only 300K.  The sequence was videotaped in an aquarium.
lure.jpg (22170 bytes) Movie 
this sequence was videotaped in Swan Creek, Taney County Missouri, by Dr. Bill Roston. The file is MPEG-1, and is about 1.5 megabytes in size.  You will need a suitable player, such as the Windows Media Player. 
marsupia.jpg (21588 bytes)

Movie  
In this sequence, the mantle flaps open to expose the marsupial gills, which contain the glochidia.  Videotaped in Swan Creek, Taney County Missouri, by Dr. Bill Roston.  The file is about 1.5 megabytes and may be slow to load by modem (2-8 minutes at 56K). You will need a suitable player, such as the Windows Media Player that comes with Windows. 

Unio Gallery— Home Page http://unionid.missouristate.edu.  Copyright 1998-2006 by M. C. Barnhart.  Please see Usage Policy for conditions of use of images and video.