VOLUTA. Q31 
other two by Seba. The first I suspect to be meant for fulva, 
but it is a most uncertain and unsatisfactory drawing, and has 
been quoted for versicolor ; the second (Seba, f. 28) is assuredly 
digitalis of Chemnitz; and the third (Seba, f. 47, 48) 1s ap- 
parently spherulata. Now if Gualtier’s figure had been better, 
the species would have been pictorially defined in the tenth 
edition, since it was the only illustration there quoted, and the 
characters of fulva answer to the very brief description. The 
longitudinal bands mentioned in the ‘Museum Ulrice’ do not 
suit that species; but remind one rather of terebralis as figured 
by Reeve. 
Of all the Mitres here enumerated, digitalis (Chemn. Conch. 
Cab. vol. x. pl. 151, f. 1432) alone is preserved in the Linnean 
collection. ‘The specimen is a remarkably fine characteristic 
one, with the spiral punctures most strikingly developed: it 
agrees perfectly with the characters specified in the twelfth 
edition of the ‘Systema ;’ and as the presence of pertusa in the 
Linnean cabinet is expressly declared, I entertain but little 
doubt of its being the true representative of that doubtful shell. 
The M. cardinalis has also been suggested as the original of the 
species ; but Linnzus has either wholly passed over the various 
delineations of it in Gualtier, Seba and Lister, works habitually 
consulted by him, or referred them to another Volute: never- 
theless that shell is the only one in the cabinet, besides digitalis, 
that at all answers to the definition of pertusa, and suits the 
‘Museum Ulrice’ better than its rival. 
Voluta mttra. 
The synonymy of the two forms episcopalis and papalis, as it 
appeared in the tenth edition of the ‘Systema,’ was so correct 
that no difficulty has been experienced in recognising the sup- 
posed varieties in the Mitra episcopalis (Enc. Méth. Vers, 
pl. 369, f. 2) and papalis (Knorr, Délic. pt. 1, pl. 6, f. 1) of 
modern conchology. In the twelfth edition of the ‘Systema’ 
the G of the reference to Argenville was a misprint for the pre- 
vious C; L of Gualtier (J. seabriuscula, teste Deshayes) was 
wrongly added, and f. 37 (M. pontificalis) of Seba erroneously 
included in the otherwise correct additional reference to that 
