Astartella concentrica (Conrad, 1842)


Astartella concentrica (Conrad, 1842)

Astartella concentrica (Conrad, 1842)  Astartella concentrica (Conrad, 1842)
Astartella concentrica (Conrad, 1842)

bottom and dorsal views

General abundance:  Common

Viewer Comments:

The A. varica appears to have some serpulid worm tube
attached to them. The A. concentrica appears to be free
of commensals. It might be an interesting study to see
if one is wormy and the other worm free---that may
have as much meaning as morphologic features.
Dr. Roger Pabian

Reference:

Desmoinesian Brachiopoda and Mollusca
from Southwest Missouri
by: Richard D. Hoare
Page 246-247, figure 6

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Phylum Mollusca
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