170 ANNALS OF THE CARNEGIE MUSEUM. 
Green. A ford and an island, surrounded by riffles, with 
conditions of great variety. Water low and clear, collecting 
fine. Shells very abundant, in shallow water not more than 
one foot deep, all found alive, with the exception of two forms. 
S  —Barren River, seven miles east of Scottsville, Allen Co., Ky., 
Sept. 25, 8925. (GW. JxiG.. Stas 226): 
“Unionidae on small gravel-riffle, in two to fourteen inches 
of water, water clear, swift, and rather warm. The undulate 
form very common, other species not so abundant.” 
A few other localities, chiefly furnished by Walker, which will have 
to be referred to only once or twice, will be given in full at the proper 
places. 
ANNOTATED LIST’ OF GREEN. RIVER NATADES: 
Material from the Green River has been examined by myself in the case 
of those forms which have an asterisk prefixed. 
1. Fusconaia ebenus (Lea): R. 
Reported by Walker. This is the only place given for this species, 
and there is some doubt connected with it. I have seen no specimens 
belonging here. It is a species of the lower parts of the Ohio, Cumber- 
land, and Tennessee, and it might be present also in the lower parts 
of Green River. 
*>. Fusconaia subrotunda (Lea): Mm; O;R. 
This probably is the Quadrula globata of Price. The real globata 
(Lea) is a synonym of F. pilaris (Lea), which is given for Green 
River by Simpson (1914, p. 894), and mentioned by Walker in the 
list of his collection. However, F. pilaris is only a dwarfed form of 
F. subrotunda from the upper Tennessee. 
I have four specimens from Mammoth Cave, with the diameter 
54-58 pr. ct. of the length, and one specimen, a male from Great 
Onyx Cave, with the diameter 56 pr. ct. From Rio I have seen seven 
specimens, with diameter 50-59 pr. ct. The maximum length (Rio) 
is 89 mm., distinctly greater than in typical pilaris. I am absolutely 
unable to distinguish these shells from the species subrotunda of the 
Ohio. 
