350 SPECIES OF THE SYSTEMA. y 
by Kiener as intended for the T. goniostoma of Valenciennes), 
and, strange to relate, although the identity of variegatus and 
imbricatus has not been recognised and scarcely even suspected, 
have constantly been quoted for the latter. Bonanni’s engraving 
is most wretched, yet its general aspect is not so unlike certain 
individuals of this very variable species. “ List. 593” has been 
added to the references in the revised copy of the ‘ Systema.’ 
Turbo wrgultae. 
The Turritella fuscata of Lamarck (Kiener, Coq. Viv. pl. 8, 
f. 2)is distinctly marked in the Linnean cabinet for this species, 
and agrees likewise with the diagnosis. Moreover, plate 590 of 
Lister’s ‘ Historiz Conchyliorum’ has been quoted as illus- 
trative in the Linnean copy of the ‘Systema,’ and, if not the 
species itself, bears a marvellous resemblance to it. As far as 
I can judge from Karsten’s meagre description, he appears to 
have anticipated this identification in his ‘Museum Leskeanum.’ 
It is rather surprising that Lamarck did not illustrate his 
fuscata (which, until of late years, was somewhat ambiguous) by 
a reference to Knorr (Délices des Yeux, pt. 6, pl. 25, f. 3), whose 
painting was by no means uncharacteristic. 
Turbo annulatus. 
No light is thrown upon this uncertain species by either the 
cabinet or the manuscripts of our author, who has omitted all 
mention of it in the catalogue of the contents of his museum. 
The brief diagnosis in the ‘Systema’ merely informs us that 
this shell is turreted, and has its suture prominent and mar- 
ginated, a description sufficiently indefinite to be applied with 
equal probability to at least half-a-dozen shells. As the rude 
drawing of Gualtier (pl. 58, f. u.), the sole engraving referred 
to, bears some general resemblance to the Melania Helvetica of 
Michelin (Magazin de Zoolog. Moll. vol. i. pl. 87.— Pyrgula 
annulata of Cristofori and Jan.), the latter has been conjectured 
to be identical with this Turbo; but unfortunately for this 
