Eucythere, G. O. Sars. 



1817 *declivis, Norman. 



1818 var. prava, Brad, and Robt. 



1819 var. argus, G. O. Sars. 



Krithe, Brady, Crosskey and Robertson 



1820 bartonensis, T. R. Jones. 



1821 producta, G. S. Brady. 



1822 *angusta, Brad, and Norm. 



1823 reniformis, G. S. Brady. 



1824 glacialis, Brad., Cross, and Rob. 



Loxoconcha, G. O. Sars. 



1825 impressa, Baird. 



1826 viridis, O. F. Muller. 



1827 *guttata v Norman. 



1828 *multifora, Norman. 



1829 tamarindus, T. R. Jones. 



*C. laevata, Norman. 



1830 pusilla, Brad, and Rob. 



1831 fragilis, G. O. Sars. 



Xestobeberis, G. O. Sars. 



1832 aurantia, Baird. 



1833 depressa, G. O. Sars. 



1834 labiata, Brad, and Rob. 



1835 margaritea, G. S. Brady. 



1836 sexmaculata, G. W. Muller. 



Cytherura, G. O. Sars. 



1837 gibba, O. F. Muller. 



1838 cornuta, G. S. Brady. 



1839 affinis, G. O. Sars. 



1840 sella, G. O. Sars. 



1841 acuticostata, G. O. Sars. 



1842 striata, G. O. Sars. 



1843 *exserta, Brad, and Norm. 



1844 *angulata, G. S. Brady. 



1845 *atra, G. O. Sars. 



1846 undata, G. O. Sars. 



1847 *producta, G. S. Brady. 



1848 *groenlandica, Brad, and Norm. 



1849 nigrescens, Baird. 



1850 *simplex, Brad, and Norm. 



1851 *concentrica, Brad., Cross, and Rob. 



1852 similis, G. O. Sars. 



1853 rudis, G. S. Brady. 



1854 fulva, Brad, and Rob. 



1855 clathrata, G. O. Sars. 



1856 w celliilosa, Norman. 



1857 *acris, G. S. Brady. 



1858 punctata, G. W. Muller. 



1859 mediterranea, G. W. Muller. 



1860 sulcata, G. W. Muller. 



Cytherura, G. O. Sars. continued. 



1861 paradoxa, G. W. Muller. 



1862 incongruens, G. W. Muller. 

 j 1863 reticulata, G. W. Muller. 



; 1864 neglecta, G. W Muller. 



Cytheropteron, G. O. Sars. 



1865 *latissimum, Norman. 



1866 nodosum, G. S. Brady. 



1867 pyramidcV.le, G. S. Brady. 



1868 ""inflatum, Brad., Cross, and Rob. 

 | 1869 subcircinatum, G. O. Sars. 



; 1870 "*ljeve, Brad, and Norm. 



I 1871 *punetaUim, G. S. Brady. 



1872 *crassipinnatum, Brad, and Norm. 



1873 hamatum, G. O. Sars. 

 , 1874 alatum, G. O. Sars. 



1875 mucronulatum, G. S. Brady. 



1876 *arcuatum, Brad., Cross, and Rob. 



(fossil only). 



1877 *montrosiense, Brad., Cross, and Rob. 



(fossil only). 



1878 angulatum, Brad, and Rob. 



1879 *depressum, Brad, and Norm. 



1880 testudo, G. O. Sars. 



1881 *humile, Brad, and Norm. 

 Bythocythere, G. O. Sars. 



1882 constricta, G. O. Sars. 



1883 turgida, G. O. Sars. 



1884 insignis, G. O. Sars. 



1885 *bicristata, Brad, and Norm. 



1886 recta, G. S. Brady. 



1887 *dromedaria, G. O. Sars. 



1888 """simplex, Norman. 



1889 *recurva, Brad, and Norm. 

 Pseudocythere, G. O. Sars. 



1890 caudata, G. O. Sars. 

 Selerochilus, G. O. Sars. 



1891 ""contortus, Norman. 



1892 aequus, G. W. Muller. 

 Cytherideis, T. R. Jones. 



1893 subulata, G. S. Brady. 



1894 foveolata, G. S. Brady. 

 Machaerina, Brady and Norman. 



1895 *tenuissima, Norman. 



1896 amygdaloides, G. S. Brady. 

 Cytherois, G. W. Muller. 



1897 Fischeri, G. O. Sars. 



1898 vitrea, G. O. Sars. 

 Paradoxostoma, S. Fischer. 



1899 variabile, Baird. 



1900 *ensiforme, G. S. Brady. 



