88 LAMELLIBRANCHIATA. 



Pholadomya heraulti, Agassiz, J. Morris and J. Lycett, Mollusca 

 Gt. Ool. part ii (1853), pi. xv, f. 4, p. 124. Millepore Bed; 

 Stainton Dale Cliffs. Leckenby Collection. 



P. newtoni, G. F. Whidborne, Q. J. G. S. xxxix (1883), pi. xix, 

 f. 9, 9 a, p. 533. Inferior Oolite; Bradford Abbas. Presented 

 by the Rev. G. F. Whidborne. 



P. ovulum, Agassiz, J. Lycett, Supp. Mon. Moll. Gt. Ool. etc. 

 (1863), pi. xxxv, f. 18, 18 a, p. 84. Cornbrash ; Yorkshire 

 coast. Leckenby Collection. 



P. saemanni, J. Morris and J. Lycett, Mollusca Gt. Ool. part ii 

 (1853), pi. xv, f. 3, p. 123. Millepore Bed; Gristhorpe. Leek- 

 en by Collection. 



Pholas costellata, J. Morris and J. Lycett, Mollusca Gt. Ool. 

 part ii (1853), pi. xiii, f. 18, p. 142. Millepore Bed; Stainton 

 Dale Cliffs. Leckenby Collection. 



Pinna dundriensis, G. F. Whidborne, Q. J. G. S. xxxix (1883), 

 pi. xvi, f. 10, p. 518. Inferior Oolite; Dundry. Presented by 

 the Rev. G. F. Whidborne. 



P. flexicostata, F. McCoy, Brit. Palseoz. Foss. (1855), pi. iii E, 

 f. 11 13, p. 499. Carboniferous Limestone; Lowick. 



P. spatula, F. McCoy, A. M. N. H. ser. 2, xn (1853), p. 188, and 

 Contrib. Brit. Pal. (1854), p. 257, and Brit. Palseoz. Foss. (1855), 

 pi. iii E, f. 9, 9 a, b, 10, p. 499. Carboniferous Limestone; fig. 9 

 Derbyshire, fig. 10 Lowick. 



P. tegulata, R. Etheridge, Appendix to W. H. Penning and A. J. 

 Jukes-Browne, Geol. Cambridge (1881), pi. i, f. 2, p. 142. 

 Lower Chalk (Totternhoe Stone) ; Burwell. 



Placuna sagittalis, G. F. Whidborne, Q. J. G. S. xxxix (1883), 



pi. xv, f. 17, p. 497. Inferior Oolite; Yeovil Junction. Pre- 

 sented by the Rev. G. F. Whidborne. 



Plicatula carteroniana, d'Ofbigny, W. Keeping, Foss. Upware 

 and Brickhill (1883), pi. v, f. 4 a, b, p. 110. Lower Greenland; 

 ire. 



P. equicostata, W. Keeping, Foss. Upware and Brickhill (1883), 

 pi. v, f. 5 a, b, c, p. 111. Lower Greensand ; Upware. 



