354 PALEONTOLOGY OF NEW YORK. 



ffTJiOPHOMENIDJJi—Oontinued. 



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



1830. Dicraniscus, Meek, 1872. 



HiPPARioNTX, Vanuxem, 1842. Mimdlus, Barrande, 1879. 



Katserella, Hall, 1892. Streptis, Davidson, 1881. 



Fakilt LEPTAiNinjE. 



Lept-ena, 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. Christiania, Hall, 1892. 



DoDViLLiNA, (Ehlert, 1887. Lept^enisca, Beecher, 1890. 



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

 Pholidostrophia, Hall, 1892. 



Family CHONETID^m. 



Chonetes, Fischer de Waldheim, 1837. Chonetina, Krotow, 1888 

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



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



Family PRODVCTID^^ Gray. 



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



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



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



Daviesiella, Waagen, 1884. Proboscidella, (Ehlert, 1887. 



AuLOSTKGES, von Helmersen, 1847. Ethbridqina, (Ehlert, 1887. 



Family THEOIDIID^, Gray. 



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



Family RICHTHOFENID^ Waaqbn. 



RiCHTHOFENiA, Waagen, 1883. 



