354 PALEONTOLOGY OF NEW YORK. 



f'^TROPHOMENIDJR— Continued. 



Orthothetes, Fischer de Waldheira, Triplegia, Hall, 1858. 



1830. Dicraniscus, Meek, 1872. 



HiPPARioNYX, Vanuxem, 1842. Mimulus, Barrande, 1879. 



Kayserella, Hall, 1892. Streptis, Davidson, 1881. 



Family LEPTJENIDzR. 



Lept^na, Dalman, 1828. Strophonella, Hall, 1879. 



Leptagonia, McCoy, 1844. Amphistrophia, Hall, 1892. 



Rafinesquina, Hall, 1892. Leptella, Hall, 1892. 



Stropheodonta, Hall, 1852. Plectambonites, Pander, 1830. 



Brachyprion, Shaler, 1865. Ciiristiania, Hall, 1892. 



DouviLLiNA, QEhlert, 1887. LEPTiENiscA, Beecher, 1890. 



Leptostrophia, Hall, 1892. Davidsonia, Bouchard, 1847. 

 Pholidostrophia, Hall, 1892. 



Family CHONETIDJE. 



Chonetes, Fischer de Waldheim, 1837. Chonetina, Krotow, 188.S 

 Anoplia, Hall, 1892. Chonostrophia, Hall, 1892. 



Chonetella, Waagen, 1884. Chonopectus, Hall, 1892. 



Family PRODUCTTDJR, finAv. 



Strophalosia, King, 1844. Productella, Hall, 1867. 



Orthothrix, Geinitz, 1847. Productus, Hall, 1867. 



Leptanalosia, King, 1845. Marginifera, Waagen, 1884. 



Daviesiella, Waagen, 1884. Proboscidella, CElilert, 1887. 



AuLOSTEGEs, von Helmersen, 1847. Etheridgina, CEhlert, 1887. 



Family THECIDIIBM, Gray. 



Lyttonia, Waagen, 1883. Oldhamina, Waagen, 1883. 



Family RICHTHOFENIDM Waagen. 



RiCHTHOFENiA, Waagen, 1883. 



