12 University of Michigan 



'"- * '"•' Specimens which may belong to S. vcnuontaniiin have 

 been seen from Maine, Quebec, and Ontario." 



59. Splucriiiui rJiomboidcitvi (Say). — Chippewa: One 

 specimen, from a Beaver Pond near Vermihon. 



60. Sphccrium occidentale Prime. — Schoolcraft: Several 

 specimens from a wooded pond, and from leaves in a swamp. 

 Chippewa : Black ash swamp, Vermilion. 



61. Muscitlium trnncatnin (Lins.). — Schoolcraft: Abund- 

 ant on the sand bottom and on leaves and grass in a wooded 

 pool. 



62. Pisidium variahile Prime. — Schoolcraft: A few valves 

 from logs and sand in Buschwahr Creek. 



63. Pisidium neglectum Sterki. — Schoolcraft: From sand 

 ?.nd grass in Bear Creek. — "P. neglect iiin St., or near (imma- 

 ture)." Sterki. 



64. Pisidium snhrotiindnni puinilitni Sterki. — Schoolcraft: 

 From the bed of a brook. 



65. Pisidium sp. — Chippewa: Black ash swamp at Ver- 

 milion. Not sent to Dr. Sterki. 



