TITLES. 2o 



470. [Reeve, L.] On the Dissolution and Re-calcification of the Shell in 

 Ci/prcea, a genus of Pectinibranchiate MoUusca. xvi, pp. 374-377 

 [1845, Dec.]. 



471. . On the Habits and Geographical Distribution of Bidunus, a 



genus of Air-breathing MoUusks. (2) i, pp. 270-274 [1848, April]. 



472. . On the Geographical Distribution of the Bulimi, a genus of 



terrestrial Mollusca, and on the nioditication of their Shell to the 

 local physical conditions in which the species occur. (2) vii, pp. 241- 

 255 [1851, April]. 



473. . On a new species of Bulinms [5. macoiielli\. (2) xii, p. 149 



[1853, Aug.]. 



474. . Description of a new species of Helix from Van Diemen's 



Land. (2) xiii, pp. 349 & 350 [1854, April]. 



475. . On two new S})ecies of Shells from Canibojia. (3) vi, p}). 203 



& 204, 455 [1860, Sept. and Dec.]. 



476. . A Revision of the Synonymy of the Boat and Melon Volutes, 



'Les Gondoliferes' of Lamarck. (3) vii, pp. 268-277 [1861, April]. 



477. Reid, J. On the Development of the Ova of the Nudibranchiate 

 Mollusca. xvii, pp. 377-389, pi. x [1846, June]. 



478. Uennie, J. British Pearls {Mya maryaritifera, Limi., Unio eloinjata. 

 Lam.). Mag. Nat. Hist, ii, pp. 461 & 462, fig. [1829, Nov.]. 



479. Roberts, G. On the habits of the Limpet, xix, pp. 70 & 71 [1847, 

 Jan.]. 



Robertson, C. [See Rolleston & Robertson (482).] 



480. Robertson, D. Remarks on the Habits of the Common Mussel. 

 (3) i, pp. 314 & 315 [1858, April]. 



481. . Saxicava rugosa a Byssus-spinner. (3) iv, p. 80 [1859, July]. 



482. Rolleston, G., & Robertson, C. On the Aquiferous and Oviducal 

 System in the Lamellibranchiate Mollusks. (3) x, pp. 446-458 [1862, 

 Dec.]. 



483. Schmidt, A. Description of a new Species of Clausilia from the 

 neighbourhood of Cheltenham. (2) xvii, pp. 10 & 11 [1856, Jan.]. 



484. ScHOMBURGK, R. H. Description of some new Fossil Shells from 

 Bissex Hill and Springfield in Barbados. (2) i, pp. 347-349, figg. 

 [1848, May]. 



Also in 'History of Barbados,' London, 1848. 



485. Seeley, H. Notes on Cambridge Palfeontology. i. Some new 

 Upper Greensaud Bivalves. (3) vii, p[). 116-124, pis. v & vi [1861, 

 Feb.]. 



486. . Notes on Cambridge Palaeontology, ii. Some new Gastero- 



pods from the Upper Greensand. (3) vii, pp. 281-295, pi. xi [1861, 

 April]. 



487. Souleyet, — . Observations on the Gasteropod Mollusca, designated 

 Ijy the name oi Phlel)enterata by ]\1. de Quatretages. xiv, pp. 342- 

 348 [1844, Nov.]. 



'From the Comptes Rendus for August 12th, 1844.' 



488. Sowerby, G. B. On Nematvra of Benson, a new Genus of Univalve 

 Shells. Mag. Nat. Hist. n. s. i, pp. 217 & 218, figg. [1837, April]. 



