Posted: Aug 29 2011

 Busycotypus spiratus plagosus (Conrad, 1862)  Shouldered Pear Whelk

Although many lump the following in one species or another, I've followed Abbott (American Seashells 1974) and presented them as named forms. 

Busycotypus spiratus spiratus (Lamarck, 1816)
Busycotypus spiratus pyruloides (Say, 1822)
Busycotypus spiratus plagosus (Conrad, 1862)

bsp1
bsp1
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bsp2-1
bsp2-1
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bsp3-1
bsp3-1
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bsp4-1
bsp4-1
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bsp5-1
bsp5-1
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bsp6-1
bsp6-1
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bsp7-1
bsp7-1
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bsp8-1
bsp8-1
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For more photos see jaxshells.com.