ORTMANN: NAIADES OF THE GREEN RIVER DRAINAGE. eee 
Rivers, and represents a rather small race, but normal in all other 
respects. However, the color of the nacre varies a good deal. It may 
be purplish, lighter, or darker, and is very often salmon-pink or 
whitish. 
*o7. Lastena lata (Rafinesque): R. 
Three specimens of this rare species have been collected by W. J. 
Clench. 
28. Arcidens confragosus (Say). 
In the Walker collection from Pond River, a tributary of the lower 
part of Green River. This is a species found in sluggish and muddy 
waters, and is to be expected in the lower drainage of Green River. 
*29. Lasmigona costata (Rafinesque): Mm; O; R; C; D; B;S. 
Common, given by Price as Alasmodonta rugosa Barnes. 
30. Anodonta imbecillis Say. 
Reported by Price as from “rivers and ponds near rivers.’’ It is 
to be expected here, and is in the Walker collection from Bowling 
Green. 
31. Anodonta grandis Say. 
Listed by Price as A. grandis and A. grandis gigantea Lea. The 
latter is only the pond-form of the former. This species seems to 
exist in this region, since Walker has both forms in his collection from 
Bowling Green. 
*32,. Anodonta suborbiculata Say: Pond near Bowling Green. 
The Carnegie Museum possesses four fine specimens from this 
locality, donated by Walker (from the Daniels collection, collected 
in August, 1899). 
33. Anodontoides ferussaclanus (Lea). 
Given in Price’s list. This species might occur here, although it 
has not been found recently. Its re-discovery is very desirable. 
*34. Alasmidonta calceolus. (Lea): S. 
Three specimens collected by W. J. Clench. Price gives this as 
Alasmodonta deltoidea Lea, and in addition there is Alasmodonta 
