296 SPECIES OF THE SYSTEMA. 
Judging from the produced tail and elongated spire one might 
have expected to have found it in a Turbinella of the infundi- 
bulum section, but none such are to be descried in the cabinet. 
In the revised copy “elongata” has been added to the diagnosis 
after “perforata,” and “ Faux striata” is written at the conclu- 
sion of the details. Would it not be desirable that the name 
of this irrecognisable shell should fade from our memories ? 
Voluta seabricula. 
I know not on what grounds Lamarck has identified this 
shell with the Mitra spherulata of Martyn, since neither 
Schréter, whose synonymy is copied by Gmelin, nor Born, 
who, although not quite so comprehensive in his references, 
has cited representations of no less than three different species, 
the last of which (Martini, Conch.-Cab. vol. iv. f. 1889) alone 
suits his “striis elevatis luteis,’ have suggested such an hypo- 
thesis. Had our author intended that dark-spotted Mitre, he 
would probably have indicated Seba, plate 50, f. 47, and most 
assuredly L not D of the cited engraving of Gualtier: the 
former being apparently designed for spherulata, the latter 
irrecognisable (at least by myself), yet the nearest approach to 
the Linnean type of any delineated in that publication. 
In the list of shells possessed by Linneeus the presence of 
V. scabricula in his collection has been recorded. There is no 
question of its being a Mitra; the difficulty experienced has 
been to ascertain the species. His cabinet contains about a 
dozen members of that genus, of which one alone presents the 
slightest appearance of a perforation; it exactly answers also 
to the rest of the description, and exhibits likewise very strik- 
ingly the feature insisted upon in the tenth edition “ fissura 
baseos elevata.” Since the same exact correspondence can be 
asserted of no other shell in the collection, and as a representa- 
tion of it in Lister’s ‘ Historie,’ “ t. 819, f. 36” is referred to in 
the revised copy of the ‘Systema,’ I can entertain no doubt, 
especially as the contrasted features of this and the succeeding 
shell are conspicuously manifest in the examples, of its typical 
authority. Itis the Mitra textwrata of Lamarck (Kiener, Coq. 
