NATURAL HISTORY, TORONTO REGION 
Family Streptomatidae. 
Goniobasis livescens, Menke. (L). Etobicoke Creek, 
Humber River. 
7 virginica, Gmelin.? Toronto Bay. 
PELYCYPODA. 
Family Unionidae. 
Lampsilis luteolis, Lamarck. (B). 
. radiatus, Gmelin. (B). 
: ellipsiformis, Conrad. (B). 
ochraceus, Say. ? 
Anodonta grandis, Say. (B), (L). Centre Island. 
as grandis, var. benedictensis, Lea. (B). 
cataracta, Say. (L). Centre Island. 
Anodontoides ferussacianus, Lea. (B). 
es ferussacianus, var. subcylindraceus, 
Lea. (L). Don River. 
Symphynota compressa, Lea. (B), (L). 
Unio complanatus, Solander. (B). 
“ erassidens, Lamarck. ? 
gibbosus, Barnes. (B). 
nasutus, Say. (L). 
rectus, Lamarck. (L). 
ce 
(73 
“ce 
(t9 
ce 
Family Sphaeriidae. 
Sphaerium simile, Say. (B), (L). Grenadier Pond. 
o striatinum, Lamarck. (L). 
stamineum, Conrad. (L). 
(Musculium) securis, Prime. Don River, 
Centre Island, High Park. 
292 
(<4 
ce 
