Page 167 - The Freshwater Mussels of Oklahoma

Partial Synonymy:
Quadrula pustulosa pustulosa (I. Lea, 1831), Watters 1995
Quadrula pustulosa (I. Lea, 1831), Simpson 1914; Isely 1925; Murray and
Leonard 1962; Valentine and Stansbery 1971; Johnson 1980; Branson
1982; Oesch 1984; Turgeon and others 1988; Vidrine 1993; Howells and
others 1996
Description:
“Shell subquadrate, subrhomboid, subtriangular or suborbicular, generally
inflated, solid, inequilateral; beaks full and high, turned forward over a deep lunule, their
sculpture a few coarse corrugations; anterior end rounded; base straight or lightly curved;
posterior end squarely or obliquely truncated, usually well-angled behind the ligament;
posterior ridge only moderately developed, rounded; there is often a slight radial
depression above it; surface, excepting at the anterior part, usually more or less covered
with warty or lachrymose tubercles, sometimes nearly or quite smooth; epidermis tawny
or tawny-greenish in young shells, often with a wide, broken, bright green ray, dirty
brownish in old shells; pseudocardinals strong, triangular, more or less ragged, two in the
left valve and three in the right; lateral of the right valve sometimes partly double; beak
cavities deep, compressed; muscle scars impressed; nacre white thinner and iridescent
behind” (Simpson 1914, p 848-849).
Hosts for Glochidia:
Black Bullhead, Brown Bullhead, Channel Catfish, Flathead Catfish, White
Crappie (Watters, 1994).

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