My Encyclopedia of Seashells (1992) has a color picture of the bright green
Julia exquisita on p. 120. The family Juliidae does not have a common name
other than "bivalved gastropod".
The book is available from my department at the address below for US$29.
Gary
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Gary Rosenberg, Ph.D. [log in to unmask]
Malacology & Invertebrate Paleontology gopher://erato.acnatsci.org
Academy of Natural Sciences http://www.acnatsci.org
1900 Benjamin Franklin Parkway Phone 215-299-1033
Philadelphia, PA 19103-1195 USA Fax 215-299-1170