GASTEROPODA. 107 
(1863), pl. xlv, £ 19, 20, p. 102. Forest Marble; Laycock. 
Walton Collection. 
Monodonta comma, J. Lycett, Supp. Mon. Moll. Gt. Ool. ete. 
(1863), pl. xlv, f. 24, 24 a, p. 101. Forest Marble; Farleigh. 
Walton Collection. 
M. tegulata, J. Lycett, Supp. Mon. Moll. Gt. Ool. ete. (1863), 
pl. xlv, f. 17, 18, p. 102. Forest Marble; Laycock. Walton 
Collection. 
M. waltoni, J. Lycett, Supp. Mon. Moll. Gt. Ool. ete. (1863), 
pl. xlv, f. 31, 31 a, b, p.101. Forest Marble; Farleigh. Walton 
Collection. 
Murchisonia angulata (? Phillips), J. Donald, Q. J. G. S. xLutr 
(1887), pl. xxiv, f. 2, p. 623. Carboniferous Limestone ; Settle. 
Burrow Collection. 
M. cancellatula, F. McCoy, A. M. N. H. ser. 2, x (1852), p. 191, 
and Contrib. Brit. Pal. (1854), p. 243, and Brit. Paleeoz. Foss. 
(1852), pl. 1 L, f. 20, 20 a, p. 292. May Hill Beds; Mullock 
Quarry, Dalquharran. 
M. cyclonema, Salter, Cat. (1873), p. 155. Wenlock Limestone ; 
Dudley. Fletcher Collection. 
M. dispar, F. McCoy, A. M.N. H. ser. 2, xm (1853), p. 191, and 
Contrib. Brit. Pal. (1854), p. 259, and Brit. Paleoz. Foss. (1855), 
pl. 11 I, f. 37, 37 a, p. 531. Carboniferous Limestone ; Lowick. 
M. gyrogonia, F. McCoy, A. M. N. H. ser. 2, x (1852), p. 192, 
and Contrib. Brit. Pal. (1854), p. 243, and Brit. Paleeoz. Foss. 
(1852), pl. 1 kK, f. 43, 43 a, p. 293. Middle Bala; W. of 
Llanfechun. In the explanation of plate i Kk, the figured 
specimen is said to be from Yspatty Evan. 
M. kendalensis, McCoy, J. Donald, Q. J. G. S. xii (1887), 
pl. xxiv, f. 3, p. 624 MM. verneuiliana, De Koninck, var. 
kendalensis, F. McCoy, Brit. Paleoz. Foss. (1855), pl. iii 4H, 
f. 11, 12, p. 532. Carboniferous Limestone ; Kendal. 
M. pulchra, McCoy, var., F. McCoy, Brit. Paleeoz. Foss. (1852), 
p. 294. Bala Beds; Alit-yr-Anker, Meifod, and north of 
Tremadoc. Llandovery Beds; Mathrafal, and Mullock quarry. 
M. simplex, F. McCoy, A. M. N. H. ser. 2, x (1852), p. 192, and 
Contrib. Brit. Pal. (1854), p. 244, and Brit. Paleoz. Foss. (1852), 
