88 LAMELLIBRANCHIATA. 
Pholadomya heraulti, Agassiz, J. Morris and J. Lycett, Mollusca 
Gt. Ool. part ii (1853), pl. xv, f 4, p. 124. Millepore Bed; 
Stainton Dale Cliffs. Lieckenby Collection. 
P. newtoni, G. F. Whidborne, Q. J. G. S. xxxtx (1883), pl. xix, 
f. 9,9 a, p. 533. Inferior Oolite; Bradford Abbas. Presented 
by the Rey. G. F. Whidborne. 
P. ovulum, Agassiz, J. Lycett, Supp. Mon. Moll. Gt. Ool. ete. 
(1863), pl. xxxv, f. 18, 18 a, p. 84. Cornbrash ; Yorkshire 
coast. Leckenby Collection. 
P. semanni, J. Morris and J. Lycett, Mollusca Gt. Ool. part i 
(1853), pl. xv, f. 3, p. 123. Millepore Bed; Gristhorpe. Leck- 
enby Collection. 
Pholas costellata, J. Morris and J. Lycett, Mollusca Gt. Ool. 
part ii (1853), pl. xiii, f 18, p. 142. Mullepore Bed ; Stainton 
Dale Cliffs. Lueckenby Collection. 
Pinna dundriensis, G. F. Whidborne, Q. J. G. S. XxXx1x (1883), 
pl. xvi, £10, p. 518. Inferior Oolite; Dundry. Presented by 
the Rev. G. F. Whidborne. 
P. flexicostata, F. McCoy, Brit. Paleeoz. Foss. (1855), pl. i &, 
f. 11—13, p. 499. Carboniferous Limestone ; Lowick. 
P. spatula, F. McCoy, A. M. N. H. ser. 2, x11 (1853), p. 188, and 
Contrib. Brit. Pal. (1854), p. 257, and Brit. Palaeoz. Foss. (1855), 
pl. 11 E, £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), pl. i, f. 2, p. 142. 
Lower Chalk (Totternhoe Stone); Burwell. 
Placuna sagittalis, G. F. Whidborne, Q. J. G. 8S. Xxx1x (1883), 
pl. xv, f. 17, p. 497. Inferior Oolite; Yeovil Junction. Pre- 
sented by the Rev. G. F. Whidborne. 
Plicatula carteroniana, d’Orbigny, W. Keeping, Foss. Upware 
and Brickhill (1883), pl. v, f. 4 a, b, p. 110. Lower Greensand ; 
Upware. 
P. equicostata, W. Keeping, Foss. Upware and Brickhill (1883), 
pl. v, f. 5 a,b,c, p. 111. Lower Greensand ;. Upware. 
