98 CANADIAN MICRO-PALEONTOLOGY. 



Cytherina fahulites, Conrad. Proc. Ac. Nat. Sc, Philadel. 1843, vol. I, p. 332. 

 Leperditia fahulites, Jones. Ann. Mag. Nat. Hist, ser. 2, vol. XVII, 1855, p. 897, 



ser. 2, vol. I, p. 146 ; ser. 5, vol. VIII, 1881, pp. 342-4. 

 Leperditia Canadensis, var. Josephiana, Jooes. Ann. Mag. Nat. Hist, ser. 3, vol- 



1, 1858, p. 341 ; Geo). Surv. Canada, Dec. Ill, 1858, p. 



94, pi. xi, fig. 16. 

 Leperditia fahulites (Conrad), var. Josephiana, Jones. Ann. Mag. Nat. Hist., ser. 



5, vol. VIII, 1881, p. 344, pi. xix, fig. 7, pi. 20, figs. 7 and 8, 



and p. 345, pi. xx fig, 4 ?. 

 Leperditia fahulites, Whitfield. Report Geol. Surv. Wisconsin, vol. 1, 1883, p. 



160, fig. /. 

 Leperditia Josephiana, Jones. Ann. Mag. Nat. Hist., ser. 5, vol. XIV, 1884, p. 



341. 



7. Leperditia Canadensis, var. Anticostiana [Anticostiensis'^'], p. 95, pi. xi, fig. 17. 



In the ' Ann. and Mag. Nat. Hi&t.' ser. 5, vol. YIII, 1881, pp. 343, 344, 

 these had been referred to Leperditia fabulites (Coni-ad) ; and, although 

 Josephiana was separated from fahulites, op. cit., vol. XIV, 1884, pp. 

 341, 342, yet it is probably best either to keep it as a variety of 

 fabulites, as stated op. cit., 1881, p. 344, or, better still, as the same as 

 L. fabulites itself. Jj. Louckiana and L. Anticostiensis are treated as 

 "species," op. cit., 1884, pp. 340-342. 



The several Canadian Leperditia^ w eve grouped by me in Ann. and 



Mag. Nat. Hist., November, 1881, p. 343, in three sets, namely, 1. 



Lep. Canadensis, Jones, with its var. nana and var. labrosa. 2. Lep. 



fabulites (Conrad), with varieties Josephiana, Anticostiana (more pro^ 



perly Anticostiensis), Jjouckiana, and Pauquettiana. 3. With Jjep. 

 amygdalma, Jones, as a separate type. In 1884 I thought it advisable 



to treat the varieties as '' species." 



Some elegant specimens in the Museum of the McGill University, 



Montreal, which had been collected from the Trenton Limestone of 



Murray Bay, Canada, were the basis of my note on L. Josephiana in 



the Ann. Mag. Nat. Hist., November, 1884, p. 341. Like the 



previously figured specimens, these vary somewhat among themselves 



and from others, especially as to the outline of the front end, which is 



often obliquely truncate for a short distance below the dorsal angle. 



Some have a slight lip at one extremity of the valve and some have it 



at the other. 



8. Leperditia Anna, p. 96, pi. xi, fig. 13. 

 This retains its status. 



9. Leperditia amygdalina, p. 96, pi. xi. figs. 18, 19. 



This also holds good. See 'Ann. and Mag. Nat. Hist.,' Novemb, 

 1881, pp. 343, 344. 



* Being named after di place and not after a person. 



