232 SPECIES OF THE SYSTEMA. 
author. Figure 33 of Regenfuss belongs to plate 3, not 5; that 
mistake, however, was not of a nature to mislead us. 
These two species (of which episcopalis is still preserved in 
the Linnean collection) were, then, pictorially defined when they 
originally appeared, and must preserve their names despite of 
any subsequent alterations. Strictly speaking the “ quadrupli- 
cata,” first added in the ‘Museum Ulrice,’ where the descrip- 
tion is too inclusive, does not suit the coronated papalis, but is 
true of pontificalis and episcopalis ; the two latter, then, should 
be considered the shells indicated in that work and in the 
twelfth edition of the ‘ Systema.’ 
Voluta mustea. 
The Voluta musica of authors (Martini, Conch. Cab. vol. ii. 
pl. 96, f. 927, 928) is marked for this species in the Linnean 
cabinet. The description in the ‘Museum Ulrice,’ and the 
abundance and peculiarly striking features of the shell, facili- 
tated its correct determination. The reference to Seba’s plate 
was inaccurately printed 5 instead of 57, and in the Vienna 
edition P erroneously took the place of F in the reference to 
Argenville. There is no Y in the twenty-eighth plate of 
Gualtier, though that letter was erroneously cited in the 
‘Museum Ulrice’ instead of the first of the two Z’s. The 
painting of X in the same engraving is remarkable, and to me, 
at least, novel. “ List. 805” has been added in the revised 
copy of the ‘ Systema.’ 
Voluta vespertilto. 
The Voluta vespertilio, in the comprehensive sense of the 
species as understood by Deshayes and Reeve, is identical with 
the species so named by Linnzeus, whose synonymy embraces 
the varieties mitis, pellis-serpentis, &c. “ Spine szpius canali- 
culate” has been appended to the description in the revised 
copy of the ‘Systema,’ and plate 808 of Lister’s ‘ Historie’ has 
been correctly referred to as illustrative. 
