GASTEROPODA. 59 
SCALARIA CANCELLATA, Broc. Crag Moll., vol. i, p. 95, Tab. VIII, fig. 2, and Supple- 
ment, Tab. IV, fig. 2. 
Locality. Cor. Crag, near Orford. 
A fine specimen of this species having been obtained from the Cor. Crag at Orford, 
and obligingly given to me by Mr. H. B. Woodward, I have been induced to have it repre- 
sented in Tab. IV, fig. 2, and I think from this specimen the shell may safely be referred 
to Brocchi’s species. 
I regret not having been able to finda better specimen of what I called Scalaria obtusi- 
costata, ‘Crag Moll.’ vol. i, p. 95, Tab. VIII, fig. 21. 
SCALARIA GRoENLANDICA, Chemn. Crag Moll., vol. i, p. 90, Tab. VIII, fig. 11. 
Localities. Red Crag, Sutton. Fluvio-marine Crag, Bramerton. Chillesford Bed, 
passim. Lower Glacial, Belaugh. Middle Glacial, Hopton. Upper Glacial, Bridlington. 
This shell is not uncommon in the Fluvio-marine Crag, and in some of the localities of 
the Chillesford bed, and in the Lower Glacial Sand at Belaugh. Two fragments have 
occurred in the Middle Glacial of Hopton. 
In our long list of Crag Scalarie there are several that I have not been able to refer 
to existing analogues. Scalaria soluta, Tiberi, ‘Journ. de Conch.,’ vol. xi, jd ILae), 
Pl. VI, fig. 3, is probably the young state, and figs. 3, 4, Pl. V of the same Journal, vol. 
xvi, possibly the full-grown condition of Scalaria Jrondosa, J. Sow., from the Coralline 
Crag. Scalaria exima, Pecchioli, may perhaps be also referred to frondosa. The Crag shell 
is variable, some specimens being more elongated than others, and the spinous fronds 
more or less produced. This Crag species I have found at Gedgrave. 
Scalaria frondicula somewhat resembles Sc. Algeriana, Weinkauff, but that Mediter- 
ranean shell is said to be covered with spiral striae ; but my Crag shell is quite smooth 
between the reflected costa. 
CHEMNITZIA CLATHRATA? Jeffreys. Supplement, Tab. VII, fig. 18. 
ODosTOMIA CLATHRATA, Jef. Ann. and Mag. Nat. Hist., 2nd ser., vol. ii, p. 345, 1848. 
CHEMNITZIA = — Forb. and Hanl. Brit. Moll., vol. iii, p. 258, pl. xeiv, fig. 4. 
Locality. Coralline Crag, Sutton. 
A single specimen has lately rewarded my researches, which seems to correspond with 
a recent British shell described by Mr. Jeffreys as a distinct species. Messrs. Forbes 
and Hanley gave it under the above name, but with a?, considering it probably a var. of 
mdistincta (curvicostata of ‘Crag Moll.’); it appears to me to differ from that species in 
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