VOLUTA. 213 
Bonanni, and cited, instead, a drawing of Tornatella punctata 
(Martini, Conch. vol. u. pl. 48, f. 440, 441), which can only be 
regarded as an approximate likeness, since it is destitute of the 
longitudinal markings. No shell in the Linnean cabinet agrees 
with the definition. 
PVoluta (tha. 
No shell in the Linnean cabinet will agree with the cha- 
racteristics assigned to this doubtful species, which appears 
to have baffled the acumen of most conchological writers. 
Schréter, who doubts the correctness of the only synonym 
published by our author, apparently did not recognise this 
Voluta; at least, he adds little, if anything, to the original 
particulars, though he surmises its affinity to the Marginella 
persicula. Gmelin and Dillwyn merely copy the words of the 
‘Systema ;’ the former, however, follows Schréter in querying 
the synonymy, and Gronovius in referring “ Gualt. pl. 25, C.” 
to itas a variety. The single engraving quoted as illustrative 
by our author can only be regarded as bearing some resemblance 
to the object intended; for the species there delineated, so far 
from possessing the peculiar livid tint, from which the specific 
appellation originated, is expressly declared to be “ candida.” 
There can be no doubt, from the figure and description com- 
bined, that this puzzling species must be located either in the 
genus Marginella or in Conovulus. The alleged number of 
folds, as well as the synonym, for Gualtier’s figure is that of a 
decided Marginella, favour the claims of the former, yet its 
position in the ‘Systema,’ apart from the other members of 
that genus and next to a Conovulus, argues against them. It 
was possibly the M. prunwm, which is present in the collection, 
for the anterior fold in that shell is not always very decided, 
and our author has substituted “ quadruplicata” for “ quinque- 
plicata” in his own copy of the ‘ Systema.’ 
It is not improbable, for too often this proves to be the case, 
that the shell which bears the same name in the ‘Museum 
Ulrice’ may have been, even generically, distinct from that 
intended in the final edition of the ‘Systema;’ the columella 
