The number which indicates the position of this species in the 'Museum'
has been subsequently ('Syst.' ed. 12) referred to _V. cancellata_, yet,
judging from the generic appellation (and consequent dentition), it
could scarcely have been that well-known species. The "lentiformi" of
the 'Systema' (ed. 10), where the name _ziczac_ first appeared, forbids
the annexation; but, although the details of the 'Museum' were there
referred to, the obnoxious word was not mentioned in that publication.
The following are the printed emendations (?): "lævis, et quasi excisa,"
"compressa," "variat colore albissimo."
V. PECTINATA. _Pho._ sulcis longitudinalibus nodosis, antice antrorsum
ramosa.
The additional synonym of "Gualt, D. 75, f. A." appears in the MS.,
where "quam reliquæ" follows "orbiculata," and in place of "In area
antica" may be read "et a primo sulco." The details there terminate with
the word "lanceolatum," "_Ramosa_" was the intended name.