15 
Heteromeyenia ryderi in a collection of the above-named museum, 
from the Dismal Swamp in Virginia; and Ephydatia miilleri, from Dyke, 
Virginia. 
Ephydatia crateriformis in a collection of the same museum, from 
the mouth of the Shiawassee River in Michigan. 
Heteromeyenia repens in a collection of the same museum, from the 
outlet of Lost Lake, in Indiana. 
Trochospongilla leidyi in a collection of the same museum, from 
Frankfort, Kentucky. 
Tubella pennsylvanica in a collection made by A. T. Evans, near 
Rhinelander, Wisconsin; and Carterius latitenta, one gemmule, in débris 
from the bottom of Lake Mendota, Wisconsin. 
Spongilla fragilis in a collection from N. M. Grier, made in Lake 
Pepin, Minnesota; and S. lacustris in a collection made by H. V. Heim- 
burger near St. Paul, Minnesota. 
Spongilla fragilis in a collection from the United States Fisheries 
Station at Fairport, Iowa. 
Spongilla fragilis and S. lacustris in a collection made by Dr. Mary 
T. Harman near Manhattan, Kansas; and Carterius tubisperma in a col- 
lection of the United States National Museum, from Goodland, Sherman 
county, Kansas. 
Spongilla lacustris and Ephydatia muilleri (typical form with spined 
skeleton-spicules) in a collection made by Miss Bessie R. Green from a 
pond near Flathead Lake in Montana. 
Spongilla fragilis and S. lacustris in a collection made by Professor 
S. A. Forbes in the year 1890 in Yellowstone Park, Wyoming. 
Spongilla fragilis, S. lacustris, Ephydatia fluviatilis, and E. muilleri 
in collections by the writer in the vicinity of Tolland, Colorado, in the year 
1916. Sponges were found in eleven of the thirty ponds and lakes ex- 
amined and are probably contained in others. Apparent absence was 
probably due in some instances to the very brief time allowed for making 
collections. Ephydatia fluviatilis was found only in Smartweed Lake, 
which has an altitude of about 8,575 feet. Spongilla fragilis was found 
in ten bodies of water with altitudes ranging from 8,100 to 10,580 feet. 
S. lacustris was collected in seven ponds and lakes, with altitudes of 
8,850 to 10,580 feet, and Ephydatia miilleri in four of the same. Lower 
Crater Lake (alt. 10,580 ft.), yielding the three species last named, was 
the highest of the bodies of water in which sponges were found during 
the summer of 1916. In August, 1913, Spongilla lacustris was collected 
in the same vicinity, in West Forest Lake, which has an altitude of about 
10,800 feet. ; 
Spongilla lacustris in a collection made by H. L. Osterud in Lake 
Washington, near Seattle, Washington. 
Carterius tubisperma in a collection of the United States National 
Museum, from Fresno. California. 
