Page 106 - The Freshwater Mussels of Oklahoma

Partial Synonymy:
Lampsilis subrostrata (Say, 1831) Simpson 1914; Isely 1925
Ligumia nasuta (Say, 1817), Branson 1984
Ligumia subrostrata (Say, 1831), Murray and Leonard 1962; Valentine and
Stansbery 1971; Johnson 1980; Oesch 1984; Turgeon and others 1988;
Vidrine 1993; Watters 1995; Howells and others 1996
Description:
“Shell elongated, irregularly elliptical, subsolid, somewhat inflated, with
moderately full beaks sculptured with numerous delicate ridges that are sharply drawn up
in the middle; very slightly winged; rounded in front and rather sharply pointed behind;
growth lines irregular; posterior ridge moderately developed; surface dull, dirty greenish-
yellow, generally having faint, wide wavy rays on the hinder portion, often having
concentric bands of lighter and darker color; teeth compressed, two pseudocardinals in
each valve, the upper in the right smaller, one lamellar lateral in the right valve and two
in the left; muscle scars shallow; beak cavities moderate; nacre bluish-white, scarcely
thicker in front. The dorsal and ventral lines of the male shell are nearly parallel; it is
more or less angled at the post-base and ends behind in a rather sharp point above the
middle; the female shell is narrowed in front, with a very large, rounded marsupial
swelling and in front of this the basal line is incurved” (Simpson 1914, p 99).
Hosts for Glochidia:
Black Bass, Bluegill, Green Sunfish, Orangespotted Sunfish, Warmouth (Watters,
1994).

Table 18. Summary of L. subrostrata shell characters.

Maximum
H/L Range Mean H/L Length W/L Range Mean W/L
Location N (%) (%) (mm) (%) (%)
Arkansas River System
Fourche Maline Creek 9 48.4-57.1 51.7 69 27.9-33.9 30.9
Bird Creek 8 48.4-56.5 52.4 81 29.5-38.2 32.7
Pond (Caney River) 10 48.3-54.7 51.1 65 25.0-34.7 30.6
Red River System
Blue River 4 52.1-58.3 55.1 48 31.3-38.6 35.1
Kiamichi River 1 54.2 - 48 33.3 -
Little River 17 50.8-56.5 53.9 72 32.7-41.7 36.6
Pine Creek Reservoir 23 49.4-59.5 55.1 85 33.3-41.7 36.8
Glover River 17 48.6-59.2 54.2 72 30.6-38.8 33.6
Ponka Bok Creek 2 48.3-54.2 51.3 89 34.8-40.3 37.6

General Distribution:
Mississippi River drainage and part of the Great Lakes system. Gulf of Mexico
drainages from Texas to Mississippi.
Oklahoma Distribution:

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