T.  Brown, The conchologist's text-book, embracing the arrangements of Lamarck and Linnæus, with a glossary of technical terms. Glasgow: A. Fullarton & Co., 1833, p. 180.

T.  Brown, The conchologist's text-book, embracing the arrangements of Lamarck and Linnæus, with a glossary of technical terms. Glasgow: A. Fullarton & Co., 1833, p. 180.