78 LAMELLIBRANCHIATA. 
Hinnites trilinearis, Seeley, var., H. G. Seeley, A. M. N. H. ser. 
3, XVII (1866), p. 178. Red Chalk ; Hunstanton. 
Inoceramus convexus, R. Etheridge, Appendix to W. H. Pen- 
ning and A. J. Jukes-Browne, Geol. Cambridge (1881), pl. ii, 
f. 6, 6 a, p. 143. Lower Chalk (Totternhoe Stone); Burwell. 
I. convexus, Etheridge, var. quadratus, R. Etheridge, Appendix 
to W. H. Penning and A. J. Jukes-Browne, Geol. Cambridge 
(1881), pl. u, f 7, p. 143. Lower Chalk (Totternhoe Stone) ; 
Burwell. 
I. latus, Mantell, var. reachensis, R. Etheridge, Appendix to 
W. H. Penning and A. J. Jukes-Browne, Geol. Cambridge 
(1881), pl. i, £3, 3 a, p. 142. Lower Chalk (Totternhoe Stone) ; 
Burwell. : 
I. sulcatus, Parkinson. Arca ? sulcata, H. G. Seeley, A. M. N. H. 
ser. 3, VII (1861), pl. vi, f. 3, p. 119, and zbid. xvi (1866), 
p. 178. A. J. Jukes-Browne, Q. J. G. S. xxx1 (1875), p. 298. 
Cambridge Greensand ; Cambridge. 
Isoarca agassizi, Pictet and Roux, A. J. Jukes-Browne, Q. J. 
G. S. xxx (1875), pl. xv, f. 1—3, p. 300. Cambridge Green- 
sand ; Cambridge. 
I. scarburgensis, J. Lycett, Supp. Mon. Moll. Gt. Ool. ete. (1863), 
pl. xxxix, f 5,5 a, p. 45. Cornbrash ; Scarborough. Leckenby 
Collection. 
Isocardia ? clarissima [Bean MS.], J. Leckenby, Q. J. G. S. 
Xv (1859), pl. ii, f. 10 a, b, p. 14. Kellaways Rock ; north side 
of the Castle Rock, Scarborough. Leckenby Collection. 
I. cordata, Buckman, J. Morris and J. Lycett, Mollusca Gt. Ool. 
(1853), pl. xv, £5, p. 1385. Mullepore Bed ; Stainton Dale Cliff, 
near Scarborough. Leckenby Collection. 
I. nitida, Phillips, J. Lycett, Supp. Mon. Moll. Gt. Ool. ete. 
(1863), pl. xxxvui, f. 6, 6 a, b, p.57. Cornbrash ; Scarborough. 
Leckenby Collection. 
I. tenera, Sowerby, J. Lycett, Supp. Mon. Moll. Gt. Ool. ete. 
(1863), pl. xxxvill, f. 5,5 a, b, p. 57. Cornbrash ; Scarborough. 
Leckenby Collection. 
