TURBO. Som 
The Littorina (Monodonta) tectum-Persicum of authors 
(Gevens, Conch. Cab. pl. 9, f. 66, tolerably) alone of the con- 
tents of the Linnean cabinet harmonises with the diagnosis, 
and, as its presence in the collection was expressly asserted, 
and tradition favours the recognition, may fairly be presumed 
the representative of the Linnean species. Even at this late 
period (1846) I know of no characteristic representation of it, 
and in the absence of such (for only a doubtful likeness by 
Gualtier was then extant) the erroneous citation of Argenville 
was not surprising. 
Ciurbo pagowus. 
The Monodonta (Littorina) pagodus of Lamarck (Chemn. 
Conch. Cab. vol. v. pl. 163, f. 1541, 1542) still: remains in the 
marked receptacle of this species in the Linnean cabinet, and’ 
accurately corresponds with its synonymy and description in 
both the ‘Systema’ and the ‘Museum Ulrice.’ The harmony 
of the references with both the text and each other caused the 
early recognition of this well-known shell. 
Gurbo calear. 
In the earlier copies of Lister’s ‘ Historie’ no regular series 
of numerals was attached to the engravings. Hence it be- 
came difficult to clearly quote them, and the omission in 
the ‘Systema’ of the chapter referred to (4, s. 6. t. 1, f. 3, 4, 
instead of 4, s. 6, c. 6, t. 1, f. 8, 4) rendered it less easy to dis- 
cover its modern equivalent pl. 608, f. 46, on which is depicted 
the Trochus stella of Lamarck’s ‘Animaux. The same shell 
has been represented by Klein and Rumphius, and likewise by 
Argenville, as cited originally in the tenth edition (9, f. R). 
The description in the ‘Museum Ulric’ is so clearly demon- 
strative, that, even without consulting our author’s collection, I 
could not but have assented to the conclusion of Deshayes, 
that the 7. stella must resume its prior appellation of calcar. 
The preservation of marked specimens of that shell (Chemn. 
