Marsh—North American Species of Biaptomus. 387 
B. asymmetricus, Cuba. 
D. Bakeri, California. 
B. Birgei, Wisconsin, Indiana, Long Island. 
D. clavipes, Iowa, Nebraska, Colorado. 
D. conipedatus , Louisiana. 
I). dorsalis, Louisiana. 
T). Biseni, California, Nebraska. 
D. franciscanus, California. 
B. Judayi, Colorado. 
D. leptopus, Massachusetts, Wisconsin, Illinois, Northwest 
Territory, Colorado, Mississippi valley generally. 
D. Lintoni, Yellowstone park. 
D. minutus, Great Lakes, Yellowstone park, Michigan, Wis¬ 
consin, Newfoundland, Greenland, Iceland. Not found south 
of Wisconsin. 
D. mississippiensis, Mississippi, Louisiana, Florida. 
B. novamexicanus , New Mexico. 
D. nudus, Colorado. 
B. oregonensis , Oregon to Michigan, Northwest Territory 
to Iowa, Illinois, Indiana and Massachusetts. 
D. pallidus, north to Wisconsin and Minnesota, south to 
Louisiana, west to Texas and Colorado, east to Illinois, Missis- 
sippi valley. 
D. purpureus, Cuba. 
D. Neighardi, Michigan. 
B. saltillinus, Nebraska. 
B. sanguineus, Massachusetts, New York to Minnesota, 
south to Alabama; reported from Nebraska and Washington. 
D. shoshone, Wyoming, Colorado. 
D. sicilis. Great Lakes, Wisconsin, Michigan, Wyoming, 
Minnesota, Illinois, Nebraska. 
D. siciloides, California, Illinois, Indiana, Wisconsin, Colo¬ 
rado, Nebraska. [ | 
D. signicauda, California, Nevada, Colorado. 
B. spatulocrenatus, Nantucket. 
B. stagnalis, Illinois, Minnesota, Ohio, Kentucky, Alabama. 
Ho tenuicaudatus, Saskatchewan. 
