NiCKLES AND BASSLER.] CATALOGUE OF GENERA AND bPEOIES. 203 



Chretetes eg-enus Hall. Not recognized. 



1883. Cha-tetes egenus. Hall, Trans. Albany Instituto, X, p. 146 (abstract, 

 1881, p. 4). 

 Upper Helderberg: Onondaga Valley, New York. 



Cha^tetes elej^ans Ulrich. See Discotiypa elegans (Ulrich). 



Chaetetes ?? expansus l^iiigucberg'. 



1886. Chajtetes expansus. Ringueberg, Bull. Buffalo Soc. Nat. Hist., V, j). 20, 

 pi. ii, 17. 

 Niagara: Lockport, New York. 



Obs. Probably a valid species, but requires further study to determine 

 generic position. 



Chaetetes filiasus Milne-Edwards and Haime. See Amploxopora filiosa 



(D'Orbigny). 

 Chaetetes Fletcheri Nicholson (not Milne-Edwards and Haime). See 



Dekayella ulrichi (Nicholson). 

 Chffitetes Fletscheri Quenstedt (not Milne-Edwards and Haime). See 



Dekayella ulrichi (Nicholson). 

 Ch^tetes frondosus Milne-Edwards and Haime. See Heterotiypa 



frondosa (D'Orbigny). 

 Chsetetes frondosus Nicholson (not D'Orbigny). See Peronopora 



decipiens (Rominger). 

 Chfetetes frondosus Quenstedt. See Peronopora decipiens (Rominger) 



and Heterotiypa frondosa (D'Orbigny). 

 Chfetetes frondosus limatus Quenstedt. See Heterotrvpa frondosa 



(D'Orbigny). 

 Chaetetes fruticosus Hall. (Lower Helderberg.) Name preoccupied. 



See Monotiypella? arbuscula (Hall). 



Chaetetes fruticosus Hall (Hamilton). Can not be recognized. 



1876. Chaetetes fruticosus. Hall, Illus. Devonian Foss., pi. xxxviii, 1-5. (Not 



described.) 

 1899. Monotrypa fruticosa. (Hall's species ?) Grabau, Bull. Buffalo Soc. Nat. 



Sci., VI, p. 136, fig. 20. 

 Hamilton: Canandaigua Lake and Eighteenmile Creek, New York. 



Chaetetes furcatus Hall. Can not be recognized. 



1876. Chaetetes furcatus. Hall, Illus. Devonian Foss., i)l. xxxvii, 1-5, pi. 



xxxviii, 6-9. (Not described.) 

 1899. :Monotrypa? furcata. (Hall's species ?) Grabau, Bull. Buffalo Soc. Nat. 

 Sci., VI, p. 137, fig. 21. 

 Hamilton: Norton's Landing and Eighteenmile Creek, New York. 



Chaetetes fusiformis Whitfield. See Lioclemella. fusiformis (Whit- 

 field). 

 Chaitetes gracilis James. See Bythopora gracilis (Nicholson). 

 Chffitetes granuliferus Ulrich. See Homotrypella granulifera (Ulrich). 



Chaetetes ?? hamiltonensis Winchell. 



1866. Chtetetea Hamiltonensis. Winchell, Rep. Low. Penin. IMichigan, p. 89. 

 Hamilton, Petoskey, ^Michigan. 



Obs. A valid species, but rc(juires further investigation to determine its 

 generic position. 



