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Seashellsthreatened and/or endangeredPeriwinkles, Wentletraps, and Othersthreatened and/or endangeredAll families

1-6 of 6 Seashells page: 1
Marsh Periwinkle
Littorina irrorata

3/4-1 1/4" (1.9-3.2 cm) high. Broad, heavy, with aperture equal in length to spire; grayish-white; spiral ridges marked with elongate reddish-brown spots; callus of inner lip chestnut-brown, and inside of sharp outer lip marked with red-brown streaks. ...… read more

Common Periwinkle
Littorina littorea

5/8-1 1/2" (1.6-3.8 cm) high. Broadly ovate, thick, sharply pointed except when eroded; grayish to gray-brown, often with dark spiral bands. Whorls smooth, slightly convex; young or unworn shells may show fine, low spiral lines. Columellar area and ...… read more

Gray Periwinkle
Littorina planaxis

1/2—3/4” (13—19 mm) high, almost as wide. Broadly ovate, narrow, body whorl higher than spire; brownish-gray, with irregular, scattered whitish spots. Whorls convex, eroded. Eroded area present next to whitish columella which is expanded where it joins ...… read more

Checkered Periwinkle
Littorina scutulata

Description: 1/2" (13 mm) long, 3/8" (10 mm) wide. Moderately conical. Brownish to nearly black, with lighter spots in irregularly checkered pattern; edge of lip with whitish spots against brown interior. 5 whorls, surface smooth, shiny. Columella ...… read more

Angulate Wentletrap
Epitonium angulatum

1/2-7/8" (13-22 mm) high. Elongate, slender to moderately broad, with pointed spire; white. Whorls smooth, rounded, separated, attached at suture by 9-10 thin, bladelike ribs, bent slightly backward; ribs on early whorls strongly angled, and usually ...… read more

Brown-banded Wentletrap
Epitonium rupicola

3/8-1" (10-25 mm) high. Sharply pointed, slender to moderately broad; yellowish-white, sometimes suffused with purplish-brown, usually with a white band below suture, a dark brown band immediately below that, and another dark brown band above next ...… read more

1-6 of 6 Seashells page: 1

 

 

 

 

 

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