230 SPECIES OF THE SYSTEMA. 
already defined Caffra—adequately answers to the description 
of a species which we know, from his list, to have been 
possessed by Linneus. 
The language of the ‘ Museum Ulric’ suits, in the main, the 
recognised features of this Mitre, yet it is by no means certain 
that the same species was there described: the “ utrinque linea 
fusca terminata” after the “fascia alba” would apply better to 
M. vittata (as delineated by Kiener); it is to be remembered, 
however, that the character is not positively enunciated, but 
modified by a “ spe.” 
The references added in the twelfth edition of the ‘ Systema’ 
are both of them incorrect: Argenville’s drawing looks more 
like Mitra sanguisuga (as delineated by Reeve); Petiver’s was 
probably misplaced, for it is a fair representation of the next 
species (plicaria). 
Voluta plicarta, 
Few species can more easily be recognised than the present 
one; since five, out of the six figures that were referred to, are 
excellent representations of the Mitra plicaria of authors, which 
agrees correctly with the descriptions of this Volute in both the 
‘Systema’ and the ‘Museum Ulrice.’ Another delineation of 
it “ List. 820” has been added to the synonymy in the revised 
copy: the shell itself, too (Martini, Conch. Cab. vol. iv. pl. 148, 
f. 1362, 13863), is still preserved in the Linnean collection. 
The figure of Rumphius represents an allied species; it is 
quoted by Lamarck for M. corrugata. 'The “‘labro levi” must 
not be understood as equivalent to “labro intus levi;”’ it is 
merely put antithetically to the “labro denticulato” of the 
succeeding species, the edge of whose lip has a. toothed 
appearance. 
Voluta pertusa. 
The synonymy of the twelfth edition includes figures of not 
less than three distinct Mitre, one delineated by Gualtier, the 
