236 THE CROSSBILL BREEDING IN ENGLAND. 



Locality : Coralline crag, Sutton. 



This shell is very abundant at the above locality. Although 

 the coralline crag is generally considered to have been a deep 

 water deposit, it must have been subject to some degree of 

 agitation, as we find separated those bivalves whose attach- 

 ment depends solely upon the ligament, and only under very 

 favourable circumstances are their valves ever united. I have 

 found some hundred single valves of this species, but never a 

 double specimen. 



The smaller figures are of the natural size, letter a is a mag- 

 nified representation. There are about seven angular central 

 ribs, beyond which are very faint traces of striae, in well-pre- 

 served specimens the ribs are visible internally, giving about 

 half-a-dozen rough crenulations in front. Ligamental area 

 large, the lines of the central pit diverging from the umbo at 

 an angle of about 80°, muscular impression sub-central and 

 ovate. The shell figured by Brocchi, tab. 14/. 14. is larger 

 and longer. The young of the following species is much 

 more cylindrical and not so largely costated. 



2. L. Limatula subauriculata, Nobis. PI. 3, fig. 6. 

 Pecten subauriculata ; Montague, ' Test. Brit.' Supplement, p. 63, t. 29, 



Length i an inch, breadth £ of an inch, depth \ of an inch. 

 Locality : Coralline crag, Sutton and Ramsholt. 



(a) is a magnified portion. 



This corresponds with Montague's description in every re- 

 spect, but I have not seen the shell. The central costce are 

 angulated, dwindling into striae on the sides, visible internal- 

 ly, crenulating the margin in front. The two opake striae 

 mentioned by Montague are not shown in the figure, but they 

 are distinctly visible in two of my specimens. Montague's 

 shell was only one quarter of an inch in length, breadth half 

 its length. 



Art. VII. — Notice of the discovery of the Nests and Eggs of the 

 common Crossbill, near Farnham, Surrey. By H. L. Long, Esq. 

 With additional Remarks by Mr. Yarrell. 



It is now fi\e or six years since I began to observe the cross- 

 bills ; they were at first but few, and rarely seen, now they 

 are in considerable numbers, and visible every day. If they 



