178 ANNALS OF THE CARNEGIE MUSEUM. 
45. Truncilla donaciformis (Lea). 
Given by Price as Plagiola donaciformis. It probably exists here, 
since it is generally found associated with the preceding species. 
46. Plagiola lineolata (Rafinesque). 
Given by Price (as Pl. securis Lea). It probably is found here, in 
the larger rivers, but has not been discovered in recent times. 
*47. Leptodea fragilis (Rafinesque): Mm; O; R; B. 
Given by Price, as Lampsilis gracilis Barnes. It appears to be 
common, at least at the lower stations. 
*48. Proptera alata (Say): Mm; O; R; B. 
In the Carnegie Museum, also from a pond near Bowling Green, 
donated by B. Walker. 
Reported by Price as Lampsilis alatus, ‘“‘common’’; and it may be 
so in the lower parts of Green River. However, it does not go far in 
the upstream direction. 
49. Carunculina parva (Barnes). 
Given by Price as Lampsilis parvus. It probably exists in this 
drainage. 
50. Carunculina glans (Lea). 
Reported by Call (1885, p. 31) from Green River. It may occur 
here, but its presence should be confirmed. 
51. Micromya fabalis (Lea). 
Reported by Price as M. lapillus Lea. This species may belong to 
this drainage, since it is found elsewhere in small streams of the upper 
Ohio-system, but confirmation of the fact is desirable. 
*52. Micromya nebulosa (Conrad): D. 
Of forms belonging to the nebulosa-iris-group the following have 
been listed by Price: Lampsilis cumberlandicus Lea, L. obscurus 
