82 LAMELLIBRANCHIATA. 



Modiolopsis postlineata, F. McCoy, A. M. N. H. ser. 2, vn 

 (1851), p. 58, and Contrib. Brit. Pal. (1854), p. 193, and Brit. 

 Palseoz. Foss. (1852), pi. i I, f. 22, p. 268. Middle Bala; 

 Allt-yr- Anker, Meifod. 



M. solvensis, H. Hicks, Q. J. G. S. xxix (1873), pi. v, f. 18, p. 50. 

 Tremadoc Beds ; Ramsey Island. Presented by Dr H. Hicks. 



Myacites modica (Bean), J. Lycett, Supp. Mon. Moll. Gt. Ool. 

 etc. (1863), pi. xliii, f. 1, 1 a, p. 83. Cornbrash ; Scarborough. 

 Leckenby Collection. 



M. recurvum (Phillips), J. Lycett, Supp. Mon. Moll. Gt. Ool. etc. 

 (1863), pi. xxxvi, f. 4, 4 a, p. 81. Cornbrash; Scarborough. 

 Leckenby Collection. 



M. sinistra (Agassiz), J. Lycett, Supp. Mon. Moll. Gt. Ool. etc. 

 (1863), pi. xxxv, f. 17 a, b, p. 82. Cornbrash; Scarborough. 

 Leckenby Collection. 



M. subsidens, G. F. Whidborne, Q. J. G. S. xxxix (1883), pi. 

 xviii, f. 24, 24 a, p. 535. Inferior Oolite ; Dundry. Presented 

 by the Rev. G. F. Whidborne, M.A. 



Myoconcha implana, G. F. Whidborne, Rep. Brit. Assoc. (1882), 

 p. 534, and Q. J. G. S. xxxix (1883), pi. xviii, f. 22, pi. xix, 

 f. 5, p. 530. Inferior Oolite; Bradford Abbas. Presented by 

 the Rev. G. F. Whidborne. 



Mytilus (Modiola) cuneatus, Sowerby, J. Morris and J. Lycett, 

 Mollusca Gt. Ool. part ii (1853), pi. xiv, f. 8, p. 131. Millepore 

 Bed; Stainton Dale Cliffs, near Scarborough. Leckenby Collec- 

 tion. 



M. (Modiola) leckenbyi, J. Morris and J. Lycett, Mollusca Gt. 

 Ool. part ii (1853), pi. xiv, f. 9, p. 131. Millepore Bed; Stain- 

 ton Dale Cliffs, near Scarborough. Leckenby Collection. 



Mytilus minimus, Salter, Cat. (1873), p. 182. Upper Ludlow ; 

 Lesmahagow. 



Nucula bivirgata, Sowerby, A. J. Jukes-Browne, Q. J. G. S. 

 xxxi (1875), pi. xv, f. 6, p. 299. Cambridge Greenland; 

 Cambridge. 



N. cornueliana, d'Orbigny, J. S. Gardner, Q. J. G. S. XL (1884), 

 pi. v, f. 5, 6, p. 129. Lower Greensand; Benniworth. 



N. levata, v. Ctenodonta levata. 



