332 



Phanerotrema occidens (Hall). 



PleurotoTnaria occidens, Kail 1867. Twentieth Reg. Rep. N. York St. 



Cab.Nat.Hist.,p. 364, pi. 15, figs. Hand 12. 

 M M Whiteaves 1884. This volume, pt. I, p. 23 ; and (1895) pt. 



II, p. 77. 

 Phanerotrema oceidenSfVhich a.ndSco&eld.. 1897. Geol. and Nat. Hist. Surv. Minn., 



Final Rep., vol. Ill, pt. II, p. 952. 



LlOSPIRA PERLATA (Hall). 



Pleurotomaria perlata, Hsill 1852. Pal. N. Vork, vol. II, p. 349, pi., 



84, figs. 5 a, b, c. 

 Pleurotomaria solarioides, Billings (probably by inadvertence) 1863. Geol. Canada, p . 



341, figs. 347, a and 6. 

 Pleurotomaria perlata, Whiteaves .'. 1884. This volume, pt. I, p. 22 ; and (1895) pt. 



II, p. 75. 



" In judging of this species I have nothing to build on save Hall's origi- 

 nal figures. These pass very well for a large species of Liospira. Unless 

 you have material showing differences in the band or elsewhere, I should 

 suggest referring the species to that genus. It is to be noted that Hall 

 recognized its resemblance to L. lenticularis." .Ulrich, in a letter to 

 the writer, dated January 20, 1906. The species is still only known from 

 mere casts of the interior of the shell. 



EOTOMAEIA GALTENSIS (BiUings). 



Pleurotomaria Galtensis, Himngs 1862. Geol. Surv. Canada, Paleeoz. Foss., 



vol. I, p. 154, fig. 136 ; and (186?) Geol_ 

 Canada, p. 334, fig. 349. 



n II Whiteaves 1895. This volume, pt. II, p. 75, pL 11, 



fig. 7. 



JEotonMriagaltensis,Gla,TkeimdKuedema,nn,1903. N.York St. Mus., Mem. 5, p. 70, 



pi. 10, figs. 10-12*. 



EoTOMARiA DuRHAMENsis (Whiteaves). 



Pleurotomaria Durhamensis, Whitesives 1884. This volume, pt. 1, p. 24, pi, 4., fig. 



2; and (1895) pt. II, p. 77. 

 Eotomaria durhameniis, Clarke & Ruedemann.1903. N. York St. Mus., Mem. 5, p. 



68, pi. 10, fig. 17. 



Clathrospira Deiopeia (Billings). 



Pleurotomaria Beiopeia, Billings 1862. Geol. Surv. Canada, Falseoz. Fobs., 



vol. I, p. 155. 



II II Whiteaves 1895. This volume, pt. II, p. 75, pi. 12, 



fig. 1. 

 This species is here provisionally referred to the genus Clathrospira, at 

 the suggestion of Dr. Ulrich. 



HoEMOTOMA Whiteavesii, Clarke and Ruedemann. 



Loxonema magnum, (Whitfield) Whiteaves. 1884. This volume, pt. I, p. 17. 

 Loxonema magnum^ Whitfield. Var. Whiteaves. 1895. Idem, pt. II, p. 87, pi. 13, fig. 2. 

 Bormotoma Whiteavesi, Clarke & Ruedemann. . .1903. N. York St. Mus., Mem. 5, p. 72, 



pi. 8, figs. 5 and 9. 



