FRESH-WATER MUSSELS. 

 Table i8. — Commercial Mussels and Their Hosts — Continued. 



153 



It will be observed that the number of hosts corresponding to a particular species 

 of mussel (as so far determined) varies from one to thirteen. It is of interest to give 

 the number of known hosts for each species of fresh-water mussel, as determined both 

 by observation of natural infections and by the experimental method, and this is done 

 in Table 19. 



Table 19. — Number op Species op Fish Known to Serve as Hosts for Certain Species of 



Mussels. 



Scientific name. 



Common name. 





Natural 

 infection. 



Artificial 

 infection. 



Common. 



Total. 



Lampsilis anodontoides. 



Lampsilis fallaciosa 



Lampsilis higginsii 



Lampsilis ligamentina. . 



Lampsilis luteola 



Lampsilis recta 



Lampsilis vcntricosa .... 



Obovaria ellipsis 



Plagiola sccuris , 



Quadrula ebenus 



Quadrula heros 



Quadrula mctanevra . . , . 



Quadrula plicata , 



Quadrula pustulata 



Quadrula pustulosa 



Quadrula solida 



Quadrula undata 



Vellow sand-shell . . . 

 Slough sand-shell. . . 



Higgin'seye 



Mucket 



Fat mucket 



Black sand-shell 



Pocketbook 



Missouri niggerhead. 



Butterfly 



Niggerhead 



Washboard 



Monkey-face 



Blue-point 



Warty-back 



....do 



Pig-toe. 



(?) 



(?) 



Table 20 lists the common species of fish showing the number of species of mussels 

 which each fish has been observed to carry as parasites. The greatest number is six, 

 for the bluegill, Lepomis palliduSy the white crappie, Pomoxis anntUarisy and the sauger, 

 Stizosicdion canadense. 



