170 



Forty-sixth Report on the State Museum, 



Dicamara, nov. 

 Charionella, Billings, 1861. 

 Pentagonia, Cozzens, 1846. 



Ooniocoelia, Hall, 1861. 

 Meristina, HaU, 1867. 



Whitfieldia, Davidson, 1882. 

 Whitfieldella, nov. 

 Camarospira, nov. 

 Hyattella, nov. 

 Nucleospira, Hall, 1859. 

 Retzia, liing, 1850. 

 Eumetria, Hall, 1864. 

 Hustedia, nov. 

 Acambona, White, 1862. 

 Trematospira, Hall, 1857. 

 Parazyga, nov. 

 Rhynchospira, Hall, 1859. 

 Homoeospira, nov. 

 Ptychospira, nov. 

 Uncinella, Waagen, 1883. 

 Uncites, Defrance, 1825. 

 Hindella, Davidson, 1882. 

 Dayia, Davidson, 1881. 

 Cyclospira, nov. 

 Atrypa, Dalman, 1828. 



Spirigerina, D'Orbigny, 1847. 

 Gruenwaldtia, Tschernyschew, 1885. 

 Karpinskia, Tschernyschew, 1885. 

 Atrypina, nov. 

 Zygospira, Hall, 1862. 

 Catazyga, nov. 

 Glassia, Davidson, 1882. 

 Anoplotheca, Sandberger, 1856. 

 Bifida, Davidson, 1882. 

 Anazyga, Davidson, 1882. 

 Coelospira, Hall, 1863. 

 Leptocoelia, Hall, 1857. 

 Clintonella, nov. 



Rhynchonella, Fischer, 1809. 



Protorhychonella, nov. 



Orthorhynchula, nov. 



Rhynchotrema, Hall, 1860. 



Stenoschisma, Conrad, 1839. 



Rhynchotetra, Hall, 1879. 



Cyclothyrella, nov. 



Camarotoechia, nov. 



Plethorhynchus, nov. 



Liorhynchus, Hall, 1860. 



Wilsonia (Quenstedt), Kayser, 



Uncinulus, Bayle, 1878. 



Uncinulina, Bayle, 1878. 



Hypothyris (Philips), King, 1850. 



Pugnax, nov. 



Eatonia, Hall, 1857. 



Terebratuloidea, Waagen, 1888. 

 Rhynchoporina, (Ehlert, 1887. 



Rhynchopora, King, 1856. 

 Camarophoria, King, 1846. 

 Camarophorella, nov. 

 Syntrophia, nov. 

 Camarella, Billings, 1859. 

 Parastrophia, nov. 

 Anastrophia, HaU, 1867. 

 Porambonites, Pander, 1830. 

 NoetUngia, nov. 

 Lycophoria, Lahusen, 1885. 

 Conchidiuni, Linne, 1760. 

 Pentamerus, Sowerby, 1813. 

 Barrandella, nov. 

 Sieberella, CEhlert, 1887. 

 Pentamerella, Hall, 1867. 

 Gypidula, Hall, 1867. 

 Capellinia, nov. 

 Branconia, Gagel, 1890. 

 CloHnda, Barrande, 1879. 

 Stricklandinia, Billings, 1863. 

 Amphigenia, Hall, 1867. 



The genera remaining for investigation are not numerous and 

 are composed largely of the Terebratuloids. To these are to be 

 added some small groups whose generic relations and broader 

 affinities are somewhat uncertain. The ground to be covered is 

 represented by the following titles : 



Stringocephalus, Defrance, 1827. Waldheimia, King, 1850. 



Terebratula, MiiUer, 1776. Cryptacanthia, White and St. John, 



Dielasma, King, 1859. 1868. 



Epithyris, King, 1850. Hemiptychina, Waagen, 1883. 



