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), pi. ii, 

 f. 6, 6 a, p. 143. Lower Chalk (Tottemhoe Stone); Burwell. 



I. convexus, Etheridge, var. quadratus, R. Etheridge, Appendix 

 to W. H. Penning and A. J. Jukes-Browne, Geol. Cambridge 

 (1881), pi. ii, f. 7, p. 143. Lower Chalk {Tottemhoe Stone); 

 Burwell. 



I. latus, Mantell, var. reachensis, R. Etheridge, Appendix to 

 W. H. Penning and A. J. Jukes-Browne, Geol. Cambridge 

 (1881), pi. i, f. 3, 3 a, p. Ii2. Lower Chalk (Tottemhoe Stone); 

 Burwell. 



I. sulcatus, Parkinson. Area 1 sulcata, H. G. Seeley, A. M. N. H. 

 ser. 3, VII (1861), pi. vi, f. 3, p. 119, and ibid, xvii (1866), 

 p. 178. A. J. Jukes-Browne, Q. J. G. S. xxxi (1875), p. 298. 

 Cambridge Greensand; Cambridge. 



Isoarca agassizi, Pictet and Roux, A. J. Jukes-Browne, Q. J. 

 G. S. XXXI (1875), pi. XV, f. 1—3, p. 300. Camh-idge Green- 

 sand ; Cambridge. 



I. scarburgensis, J. Lycett, Supp. Mon. Moll. Gt. Ool. etc. (1863), 

 pi. xxxix, f. 5, 5 a, p. 45. Cornbrash ; Scarborough. Leckenby 

 Collection. 



Isocardia ? clarissima [Bean MS.], J. Leckenby, Q. J. G. S. 

 XV (1859), pi. iii, 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), pi. XV, f. 5, p. 135. Millepore Bed; Stainton Dale Cliff, 

 Tiear Scarborough. Leckenby Collection. 



I. nitida, Phillips, J. Lycett, Supp. Mon. Moll. Gt. Ool. etc. 

 (1863), pi. xxxviii, f. 6, 6 a, b, p. 57. Cornbrash ; Scarborough. 

 Leckenby Collection. 



I. tenera, Sowerby, J. Lycett, Supp. Mon. Moll. Gt. Ool. etc. 

 (1863), pi. xxxviii, f. 5, 5 a, b, p. 57. Combrash ; Scarborough. 

 Leckenby Collection. 



