ADDENDA ET COEEIGENDA. 297 



P. 149. PTERONOTUS to be :— 



Genus TRIPLEX, Humphrey, 1707. 



Mus. Calonnianum, 1797, p. 40. 

 PeiTy's ' Conchology,' 1811, pis. vi., vii. 



Pteronotus, Swainaon, 1840, non J. E. Gray, 1838 (a mammal). 



P. 155. LEIOSTOMA to bet- 

 Genus SYCUM, E. Bayle, 1880. 

 Journ. Conchyl. L880, vol. xxviii. p. 240. 



Leiostoma, Swainson, 1840, non Lacepede, 1802. 



P. 100. LOVENELLA to be :— 



Genus CERITHIELLA, VerriU, 1882. 

 Trans. Connecticut Ac. 1883, vol. v. p. 522. 



Lovenella, G. 0. Sars, 1878, iwii Hincks, 1868. 



P. 204. The following entry to stand as the first species of BAYANIA : — 



Bayania corragata, Lamarck, 1804 and 1806. 



Mdania corruyata. 

 Ann. Mus. 1804, vol. 4. p. 4-31 ; 1806, vol. 8. pi. xii. fig. 3 (jwn Lamarcls, 

 1819, a recent species). 



Melania semidecussata. 



Hist. Nat. Anim. sans Vert. 1822, vol. 7. p. 545. 



Coc[. Fobs. Paris, 1825, vol. ii. pi. xii. figs. 11, 12, p. 106. 



Desc. Anim. sans Vert. 1862, vol. ii. p. 454. 



Land- u. Siissw.-Conchyl. 1873, p. 330. 



Me'm. Soc. G^ol. France, 1884, ser. 3, vol. 3. p. 53 (Table). 



Horizon and Locality. 



Oligocene. — Hempstead Beds. Hempstead. 



P. 215. Through an error Fordtiscala Newtoni is entered as an MS. species of 

 M. de Boury ; it was published by that author in the Journ. Concliyl. 

 1890, ser. 3. vol. 30. p. 139. 



P. 221. Homala.vis Landunensk ; alter spelling of this species to Lauduneruis. 



