Page 54 - The Freshwater Mussels of Oklahoma

tooth; the single lateral is short, nearly straight and stout; sometimes a smaller tooth
develops ventrally to the main tooth. Interdentum well to poorly developed; beak cavities
deep and fairly broad; nacre white, sometimes tinged with salmon or pink, iridescent
posteriorly” (Oesch 1984, p109-111).
Hosts for Glochidia:
Black Crappie, White Crappie, Bluegill (Watters, 1994).
Comments:
Highly variable in shape, size and color. Some populations resemble F. askewi
found south of the Red River. Others closely resemble forms described as F. undata.

Table 7. Summary of F. flava shell characters.

Maximum
Mean H/L H/L Range Length Mean W/L W/L Range
Location N (%) (%) (mm) (%) (%)
Arkansas River Drainage
Poteau River 2 71.3-72.6 72.0 94 48.8-51.1 50.0
Illinois River 18 61.1-79.5 69.9 112 37.9-56.9 46.7
Caney River 9 70.2-82.2 76.1 101 41.7-55.6 46.9
Verdigris River (and 39 67.6-84.6 76.5 108 35.4-58.2 48.4
Tributaries)
Neosho River 7 71.4-87.3 76.8 112 44.6-58.2 50.3
Red River Drainage
Mountain Fork River 49 68.3-84.1 75.3 79 39.7-62.7 49.2
Glover River 63 64.6-97.5 80.4 71 41.5-66.7 54.4
Little River 55 69.5-94.1 82.3 73 42.1-72.2 57.0
Kiamichi River 42 66.7-91.1 76.9 88 42.1-70.6 54.0
Muddy Boggy River 4 74.4-79.6 77.2 90 52.2-55.9 54.0
Blue River (upper) 21 62.0-71.4 67.8 79 35.7-44.2 41.3
Blue River (lower) 8 68.7-77.1 72.4 92 45.8-56.6 48.7
Washita River 7 65.6-76.2 70.7 52 - -

General Distribution:
Mississippi River system, Great Lakes and St. Lawrence drainages.
Oklahoma Distribution:
Generally distributed throughout the river systems in the northeastern and
southeastern thirds of the state.

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