FRESH-WATER MUSSELS. 

 Table i8. — Commercial Mussels and THEm 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. 



Mussels. 



Scientific name. 



Common name. 



Lampsilis anodontoides. 



Lampsilis iallaciosa 



Lampsilis higginsii 



Larapsilisligaraentina. . 



Lampsilis luteola 



Lampsilis recta 



Lampsilis ventricosa. ... 



Obovaria ellipsis 



Plagiola secTiris 



Quadrula cbenus 



Quadrula hcros 



Quadrula nietanevra . . . . 



Quadnila plicata , 



Quadrula pustulata 



Quadrula pustulosa 



Quadrula solida 



Quadrula undata 



Yellow sand-shell . . . 

 Slough sand-shell. . . 

 Higgin's eye 



Mucket 



Fat mucket 



Black sand-shell .... 



Pocketbook 



Missouri niggerhead. 



Butterfly 



Niggerhead 



Washboard 



Monkey- face 



Blue-point 



Warty-back 



....do 



Pig-toe. 



Natural 

 infection. 



(?) 



Artificial 

 infection. 



Common. 



Total. 



(?) 



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

 which each fish has been obser\-ed to carry as parasites. The greatest number is six, 

 for the bluegill, Lepomis pallidus, the white crappie, Pomoxis annularis, and the sauger, 

 Siizosledion canadense. 



