398 CONTRIBUTIONS TO CANADIAN PALAEONTOLOGY. 



Mills by the Rev. Hector Currie, mIio has kindly presented two of them 

 to the Museum of the Survey. The maximum length of the largest of 

 the three is only twenty-seven millimetres, and it is not quite certain 

 that they are not very young examples of C. tenidstriala (Hall). 



A well preserved but rather imperfect specimen of C. bellistriata, in 

 the Museum of the Survey, is labelled as having been collected by J. De 

 Cew in 1857 from the Corniferous limestone of Lot 24, Concession 1, 

 Walpole, Ontario. 



NucuLA LiEATA, Conrad. 



A list of the synonyui.s of this spt'cie.s is given on I'age 301. 



An imperfect and badly preserved cast of the interior of the closed 

 valves of a small shell which Mr. Schuchert identifies with N. lirata, was 

 collected by him at Bartlett's Mills (in the "Lower third of the section" ) 

 in 1895. The specimen is No. 26,496 of the United States National Mus- 

 eum Catalogue of Invertebrate Fossils. 



The " badly preserved single valves " from the north side of Manitoba 

 Island referred to under the name N. lirata, on page 301 of the fourth 

 part of this volume, may not belong to the same species nor even to the 

 same genus. 



NocoLiTES TRiQUETEE, Conrad. 



Nntuditcs triqucicr, Conrad. 1841. Ann. Rep. (reol. Snrv. N. York, p. 50. 



Hall. 1870. Prelim. Notiee Laniellilir. .Shells, &c., 2. p. 4. 

 „ H Hall. 1883. Pal. N. "i'ork, vol. v., pt. 1, Plates and Explanations: 



pi. 47, figs. 17-24. 



Hall. 188.5. Ibid., vol. Y., pt. 1, Larriellibr. 2, p. 32(), pi. 47, figs. 

 17-24 ; and pi. !)3, figs. 8-10. 



Bartlett's Mills, in the " Lower third of the section ", three small but 

 well preserved oasts of the interior of the shell, which were collected in 

 1895, by Mr. Schuchert, who identifies them with this species. The 

 largest is scarcely four millimetres in its maximum length, but in all 

 three the "impression of the curved muscular ridge or clavicle just 

 anterior to the beaks," which is so characteristic of the genus, is remark- 

 ably well defined. The specimens are Ivo. 26,498 of the United States 

 National iluseum Catalogue of Invertebrate Fossils. 



Leda uostellata, Conrad. (Sp.) 



Nurnlile^ roddhttd, Cnni-ad. 1841. ({eol. Surv. N. York, Ann. Rep., p. 50. 

 Lahi f rostdlata, H:dl. 1870. Prelim. Notiee Lamellil.r. Sliells, &c., 2, p. 5. 

 Lcda {Nuculana) roatcllutn, Hall. 188.3. Pal. N. ^'ork, vol. \'., pt. 1, Plates and 

 Ex])lanations : pi. 47, figs. 45-47. 



