PRINCIPAL ABBREVIATIONS. ix 
Ch. Chem. or Chemnitz. Chemnitz’s continuation of Martini's 
work ; vol. iv. 1780; v. 1781; vi. 1782; vii. 1784; viii. 1785; 
i Leos xt 1788 > xi. 1799: 
Chenu, Il. Conch. (or C.) Chenu’s Illustrations de Conchyliologie. 
C. I. or Conch. (or Con.) Il. (or I.) Sowerby’s Conchological Llus- 
trations. 
Conch. Mag. Malacological and Conchological Magasine, 1838. 
Conc. Man. = Sow. Conch. Man. 
Conch. (or Con.) Mis. = Hanl. Conch. Mis. 
Con. (or Conr.) Am. Conch. (or C. or M. C.) or Mar. Con. Conrad's 
American Marine Conchology, 1831. 
Jour. A. N. 8S. Phil. or J. Phil. Conrad in the 
Journal of the Academy of Natural Sciences of Philadelphia 
(chiefly in vol. vii.) 
(or Conrad) Mon.  Conrad’s Monography of the family 
Unionide &c. N. America; December, 1835 to July, 1840 
No. 12). 
ies Ni. Wy S. (of Am. at times). Conrad’s New Freshwater 
Shells of the United States, 1834. An appendix added about a 
year after. 
Cont. of Mac. Ly. Contributions of the Maclurian Lyceum, &c. 
i. 1827. 
Cooper. Cooper’s MS. names quoted by Lea. 
Coquille = Lesson, Voy. de Coq. 
Costa. Costa in next work; also in Osservazioni Zoologiche sull’ 
Isola di Pantellaria, and in Antologia di Scienze Naturali, i. 
Test. Sic. Costa’s Catalogo sistematico e ragionato dei Tes- 
tacei delle due Sicilie, 1829. 
Couth. or Couthouy. Couthouy in the Boston Jl. of Natural History, 
ii, (1838). 
gies Crouch Lam. (or Int.) Crouch’s Illustrated Introduction 
to Lamarck’s Conchology, 1827. 
Cuvier, R. An. edit. Audouin. ‘The Illustrated French edition of 
Cuvier’s Regne Animal. From 1836. 


D. Dillwyn’s Descriptive Catalogue of Recent Shells, 1817. 
Da Costa (or Cost.) Da Costa’s British Conchology, 1778. 
Daud. Daudin, quoted on the authority of Lamarck for Hredona 
(= Corbula) Mactroides (Bosc, ii. p. 329, t. 6, f. 1). 
Davids. or David. Davidson in the Annals of Natural History, 
1847, 1852; also in the Zoological Proceedings. 
Bul. Geol. France. Davidson in the Bulletin de la Société 
Geologique de France, ser. 2, ii. 
Dekay. Dekay’s Zoology of New York. Mollusca, 1843. 

