STROMBUS. 275 
Argenville’s drawing (it is the sixth in sequence of the 
second line, and forms one of the sroup marked 6, but is not 
the Mitra of his plate) represents a fossil Rostellaria from 
Courtagnon, and agrees better than the English figure (both, 
however, have been referred by Lamarck to the same shell) 
with the assigned characters. The Rost. fissurella of Lamarck’s 
‘Animaux,’ from its correspondence with ‘the words of the 
‘Systema,’ and with one, if not both, of the cited engravings, 
has been generally accepted as the representative of the Lin- 
nean species. Examples of it (Sowerby, Genera Shells, Rost. 
f. 4) are still preserved in the cabinet of our author, who has 
recorded his possession of a specimen, and, since they ex- 
clusively answer to the description, there is no reason to doubt 
their typical authority. Murray, the pupil of Linneus, has 
delineated the same species for it. In the revised copy of the 
‘Systema,’ the “excepto maximo” has been erased, and the 
stop removed from after, to before, the word “ apertura.” 
Stronmus urects. 
One regrets to disturb a long-established identification, yet 
truth compels me to declare that the S. wrcews of modern 
writers is not the true representative of the species thus 
named by our author. We shall not find among the synonyms 
a single characteristic drawing of that shell, an absence not to 
be accounted for by none such being then extant, since, 
besides having been delineated by Bonanni (pt. 3, f. 144), a 
writer peculiarly consulted by Linneus, it has been engraved, 
likewise, in those very works wherein different figures were 
referred to as illustrative. On the contrary it is the S. mutabilis 
(Seba, Mus. vol. i. pl. 60, f. 28, &c.), and the S. plicatus (Rump. 
pl. 37, f. T, &c.), the former of which is marked for this species 
in the Linnean cabinet, where the suppositious wrceus 1s not 
present, to which our attention is directed by the references. 
Indeed, the remarkable colouring of the aperture of that shell 
would scarcely have been passed over in the description: 
assuredly the “dorso nodis 8 seu 4” can be more correctly 
affirmed of mutabilis than of either of the others. The expres- 
sion “labro attenuato” having been considered equivalent to 
