TURBO. 341 
Turds crewatus. 
Although no reference to a figure accompanied the descrip- 
tion of this shell, the details in the ‘Museum Ulrice’ left no 
doubt that it belonged to the genus Scalaria. Although Chem- 
nitz was somewhat bold in venturing to positively identify a 
shell (Conch. Cab. vol. xi. f. 1880, 1881) for whose recognition 
the data were so few, he was nevertheless right in his conclu- 
sion. The analytical process so often alluded to proves that 
the Scalaria crenata (Sowerby, Thes. Conch. Scalar. f. 123) is 
the representative of the Turbo crenatus in the Linnean cabinet, 
for alone of the entire collection it correctly harmonises with 
the recorded features. 
Gurbo lacteus. 
This is another of the smaller species which the old school 
of conchologists have failed to recognise. From the expression 
“T’. clathro similis” one is led to expect either an absolute 
Scalaria or a shell with those longitudinal ridges which con- 
stitute so generally diffused a feature in that graceful genus. It 
has not, however, been identified with a Scalaria either in the 
Monographs by Kiener and Sowerby, or in any work I am 
acquainted with, nor can I find any wentle-trap in the cabinet 
of our author (who, nevertheless, has indicated his possession 
of it) that will answer to its description. The cited figure of 
Ginanni is a very obscure one, and must be looked upon as a 
mere approximation to the shell intended: it is a dorsal view 
of either a beakless Cerithiwm (C. lima?? or mamillatum ? ?) or 
a Turritella; the text of that work merely informs us that it 
was minute and reticulated. “ Minor grani hordei striis elevatis 
nec tamen membranaceis”’ strongly favours the idea that the 
Linnean species belonged to Chemnitzia, of which a member, 
the elegantissima (Philippi, Moll. Sicil. vol. i. pl. 9, f. 5) is still 
present in the collection, and accords better than any other 
example there with the described features. I would not, on 
such grounds, argue for a substitution of the name lactea in 
