Zoological Illustrations - LightNovelsOnl.com
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_Young._ Vol. vitulina. _Dill._ 553.--_Martini_ 4. 149. 1380 & 1.
_Variety_ more elongated. Vol. abbatis. _Dill._ 557. _Chemnitz_ 11.
_t._ 177. 1709 & 10.
This (a common sh.e.l.l) can be no other than the _M. ferruginea_ of Lamarck, though neither that author nor any other has noticed its primary distinguis.h.i.+ng character, that of the uncommon thickness of the outer lip at the margin, which is also divided into convex obtuse crenations; in young sh.e.l.ls this is not apparent; such is Martini's figure. Mr. Dillwyn has changed Lamarck's name to _Vitulina_ for this, and given the name of _Abbatis_ to the variety more lengthened, figured by Chemnitz; but which, from specimens now before us, we consider with Lamarck only as a variety, possessing all the essential characters here given to both.
