TITLES. 3 



38. [Conrad, T. A.] Descriptions of five new species of older Eocene 

 shells from Shark River, Monmouth Co., N.J. i, pp. 213 & 214, 

 pis. XX pars, xxi pars. 



39. . Remarks on the genera Monocondylcea, D'Orb., and Pseudodon, 



Gould, with a synopsis of the latter, i, pp. 232 & 233. 



40. . Description of a new genus [^Arconaia'] of Unionidce. i, p. 234. 



41. . Description of a new species of Pseudodon \P. ellipticum, 



Cambodia], i, p. 352, pi. xxv pars. 



42. . Observations on certain Eocene Fossils described as Cretaceous, 



by Mr W. M. Gabb, in his Report, published in the " Palseontology of 

 California." i, pp. 362-365. [C£ No. 46 and Gabb (100).] 



43. . Illustrations of Miocene fossils, with descriptions of new 



species, ii, pp. 65-74, pis. iii & iv. 



44. . Note on the genus Gadus, with descriptions of some new genera 



and species of American fossil shells, ii, pp. 75-78. 



45. . Descriptions of new species of Australian freshwater shells. 



ii, pp. 79-81, pi. i pars. 

 None are new. 



46. . Further observations on Mr Gabb's Palseontology of California. 



ii, pp. 97-100. 



47. . Observations on recent and fossil shells, with proposed new 



genera and species, ii, pp. 101-103. 



48. . Descriptions of new species of Tertiary, Cretaceous, and recent 



shells, ii, pp. 104-106, pis. viii & ix. 



49. . Description of a new species of Unio [U. depi/gis, Tennessee]. 



ii, p. 107, pi. X pars. 



50. . Descriptions of American freshwater shells, ii, pp. 278 & 



279, pi. XV pars. 



51. . Descriptions of new Marine Bivalve Mollusca. ii, pp. 280 & 



281, pi. XV pars. 



52. . Observations on Pleiodon macimortrii. iii, p. 4. 



53. . Palpeontological Miscellanies. 1. Note on a Cretaceous 



Limestone of Dakota. 2. l^oie on Aturia mathewsoni., Qahh. 3. On 

 Corhicula densata, Conrad. 4. Description of a new genus of 

 Pectinidce. iii, pp. 5-7. 



54. . Descriptions of new genera and species of fossil shells, iii, 



pp. 8-16. 



55. . Synopsis of the genera Sijcotypus, Browne, and Busycon, 



Bolten. iii, pp. 182-185. 



56. . Descriptions of new Miocene shells, iii, pp. 186 & 187. 



57. . Notes on fossil shells and descriptions of new species, iii, 



pp. 188-190. 



58. . Description of a new genus [Cyclocardia'] of AstartidcB. iii, 



p. 191. 



59. . Descriptions of new West Coast shells, iii, pp. 192 & 193, 335. 



1—2 



