LAMELLIBRANCHIATA. 81 
Macrodon hirsonensis (d’Archiac) var. rugosa, J. Lycett, Supp. 
Mon. Moll. Gt. Ool. ete. (1863), pl. xxxvi, f. 9, p. 118. Forest 
Marble; Farleigh. Walton Collection. 
Modiola arcadiformis, W. Keeping, Foss. Upware and Brickhill 
(1883), pl. vii, f. 2 a, b, p. 128. Lower Greensand ; Potton. 
M.? consobrina, S. V. Wood, Eocene Bivalves 1 (1864), pl. xix 
M. 
M. 
M. 
. planata, Salter, Cat. (1873), p. 182. Upper Ludlow ; Kirkby 
f. 17, p. 76. Bracklesham Beds; Alum Bay, Isle of Wight. 
Fisher Collection. 
. gibbosa, W. H. Hudleston, Proc. Geol. Assoc. v (1878), p. 489. 
Coral Rag ; Malton. 
. obesa, W. Keeping, Foss. Upware and Brickhill (1883), pl. 
vi, f.3.a,b, p. 117. Lower Greensand ; Upware. 
pedernalis 7, Roemer, W. Keeping, Foss. Upware and Brick- 
hill (1883), pl. vi, £2 a,b, p. 117. Lower Greensand ; Upware. 
sp., W. Keeping, Foss. Upware and Brickhill (1883), p. 118. 
Lower Greensand ; Upware. 
Modiolopsis gradata (Salter). J/. nilssoni (Hisinger), F. McCoy, 
Brit. Palzsoz. Foss. (1852), pl. it, f. 21, p. 267. Lower Ludlow; 
Park Lane, Llandeilo. 
homfrayi, H. Hicks, Q. J. G. S. xx1x (1873), pl. v, f. 16, 17, 
p. 49. Tremadoc Beds; Ramsey Island. Presented by Dr 
H. Hicks. 
. inflata, F. McCoy, A. M. N. H. ser. 2, vit (1851), p. 58, and 
Contrib. Brit. Pal. (1854), p. 193, and Brit. Palaeoz. Foss. (1852), 
pl.it, f. 16, p. 266. Middle Bala; Pen Cerrig, Serth. 
. modiolaris (Conrad), F. McCoy, Brit. Palaeoz. Foss. (1852), 
pLiz f.17, 18, p. 267. M. m‘coyi, J. W. Salter, Appendix to 
A. C. Ramsay, Geol. North Wales (1866), p. 346, and «bid. 
second edition (1881), p. 552. Middle Bala; fig. 17 Cader 
Dinmael, fig. 18 Horderley. 
nilssont, v. Modiolopsis gradata. 
Moor, Kendal. 
. planata, var., Salter, Cat. (1873), p. 182. Upper Ludlow ; 
Benson Knot. 
Wiecs 6 
