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"The descriptions of it are very obscure; it appears to be destitute of shell, the body globular, the lower part having an oval space, circumscribed by thick lips; the animal is furnished with curious swimming and branchial appendages." — Goodrich, 1859

Leach's bursatella

"The descriptions of it are very obscure; it appears to be destitute of shell, the body globular, the…