GEOGRAPHICAL DISTRIBUTION. 159 
[wba 
Vermont: Burlington, Colchester, and Shelburne, Chittenden Co. 
Massachusetts: Grafton, Worcester Co. ; Williamstown, Berkshire Co. 
New York: Lake Champlain ; Ellenburg, Clinton Co. ; Westport and Elizabeth- 
town, Essex Co.; Fulton Lakes, Hamilton and Herkimer Cos.; Cunton, St. 
Lawrence Co.; Port Jervis and Newburg, Orange Co.; Fishkill, Duchess 
Co.; Fallsburg, Sullivan Co.; Sherburne, Chenango Co. ; Cazenovia, Madison 
Co. ; Ithaca, Tompkins Co.; Berkshire, Tioga Co. ; Genesee River, Rochester, 
Monroe Co.; Niagara, Niagara Co. ; Forestville, Chautauqua Co. 
New Jersey: Schooley’s Mountain ; Orange ; Trenton. 
Pennsylvania: Bedford and Pattonville, Bedford Co.; Windham, Bradford Co. ; 
Hummelstown, Dauphin Co.; Carlisle, Cumberland Co. ; Berwick, Columbia 
Co.; Bainbridge, Lancaster Co.; Schuylkill River, near Philadelphia; Chester 
Co.; McKean Co. ; Foxburg, Clarion Co. 
Maryland: Harford Co.; Howard Co.; Montgomery Co.; Frederick Co. ; Wash- 
ington Co.; Garrett Co.; Alleghany Co. 
District of Columbia: Rock Creek, Georgetown. 
Virginia: Clarke Co.; Alexandria Co.; Franklin, Southampton Co. ; tributaries 
of Rappahannock River, Stafford Co.; James River; tributaries of James 
River, Rockbridge Co.; Lunenburg, Lunenburg Co.; Bath Co.; Reed Creek, 
west of Wytheville, Wythe Co.; Holston River, Smyth Co. 
West Virginia: Williamsport, Grant Co.; South Branch of Potomac River; Pat- 
terson’s Creek; Petroleum, Ritchie Co.; near White Sulphur Springs, Green- 
brier Co. ; branch of Clinch River, northern base of Clinch Mountains. 
North Carolina: Kinston; Newman’s Fork, Blue Ridge, McDowell Co. 
Ohio: Marietta; Cincinnati; Yellow Springs; Scioto River, Columbus. 
Indiana: New Albany ; Fall Creek, Indianapolis. 
Lake Superior. 
Kentucky: Cumberland Gap, Josh Bell Co.; Smoky Creek, Carter Co.; Kentucky 
River, Little Hickman, Jessamine Co.; Bear Creek, Grayson’s Springs, Gray- 
sop Co.; Mammoth Cave, Edmonson Co. 
Tennessee: Doe River, Carter Co.; Lineville Cave, near Blountsville, Sullivan Co. ; 
Knoxville. 
For doubtful localities for C. Bartonii, see page 63. 
VAR. robusta. 
Dominion of Canada: Humber River and Don River, Toronto; Indian Creek, 
Weston, Province of Ontario. 
New York: Forestville, Chautauqua Co.; Genesee River, Rochester, Monroe Co. ; 
Sodus, Wayne Co.; tributary of Racket River, near Tupper’s Lake, St. Law- 
rence Co.; Canton, St. Lawrence Co.; Fulton Lakes, Hamilton and Herkimer 
Cos.; Natural Bridge, Jefferson Co. 
Maryland : Montgomery Co. 
Virginia: Fredericksburg. 
Illinois : Decatur. 
23. C. acuminatus. 
South Carolina: Saluda River. 
24. C. latimanus. 
South Carolina: Columbia; Greenville. 
Georgia: Athens; Milledgeville ; Roswell. 
