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 find a 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 Scalarice there are several that I have not been able to refer 

 to existing analogues. Scalaria soluta, Tiberi, ' Journ. de Conch.,' vol. xi, p. 159, 

 PI. VI, fig. 3, is probably the young state, and figs. 3, 4, PI. V of the same Journal, vol. 

 xvi, possibly the full-grown condition of Scalaria frondosa, J. Sow., from the Coralline 

 Crag. Scalaria eocima, 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. Alaeriana, Weinkauff, but that Mediter- 

 ranean shell is said to be covered with spiral striae ; but my Crag shell is quite smooth 

 between the reflected costae. 



Chemnitzia clathrata? Jeffreys. Supplement, Tab. VII, fig. 18. 



Odostomia clathrata, Jef. Ann. and Mag. Nat. Hist., 2nd ser., vol. ii, p. 345, 1 848. 

 Chemnitzia — Forb, and Hani. Brit. Moll., vol. iii, p. 258, pi. xciv, 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 

 indistincta {curvicostata of ' Crag Moll.') ; it appears to me to differ from that species in 



