WoRMS source details

Dall W.H. (1912). New species of fossil shells from Panama and Costa Rica. Smith. Misc. Coll, vol. 59, No. 2 Page 4.
141538
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2013-01-12 18:30:12Z
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Olivella myrmecoon Dall, 1912 (original description)
Plekocheilus pirriensis Dall, 1912 (original description)