Page 146 - The Freshwater Mussels of Oklahoma

Table 27. Summary of P. grandis shell characters.

Maximum
H/L Range Mean H/L Length W/L Range Mean W/L
Location N (%) (%) (mm) (%) (%)
Arkansas River Drainage
Canadian River Drainage 34 52.3-66.1 59.0 143 34.5-47.1 41.8
Illinois River 2 56.4-60.0 58.4 117 41.0-44.0 42.5
Neosho River 1 56.9 - 144 - -
Caney River Drainage 12 53.7-64.2 58.4 155 35.6-43.6 39.2
Verdigris River Drainage 59 52.3-68.8 59.6 159 35.8-56.2 43.6
Misc. lakes and streams 40 50.3-71.4 59.2 186 34.7-57.1 42.9
Red River Drainage
Little River Drainage 38 50.0-64.8 55.3 139 31.8-46.8 39.4
(Little, Mt. Fk. and
Glover Rivers)
Kiamichi River 17 50.0-62.9 57.2 135 38.2-47.1 43.5
Lake Raymond Gary and 15 50.4-58.7 55.2 131 36.5-42.5 39.5
Gates Creek
Upper Red River and 95 51.2-70.5 59.1 198 33.8-61.4 42.9
Washita River drainages

General Distribution:
Mississippi River drainage, St. Lawrence, Great Lakes and Gulf of Mexico
drainages from northern Mexico through Alabama. Commonly introduced into reservoirs
and becoming very widespread.
Oklahoma Distribution:
This species is found throughout the state in most rivers and reservoirs.

Map 32. Distribution of P. grandis in Oklahoma.

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