304 Professor Rupert Jones — Isochilinw from N. America. 



1883. Leperditia {Isochilina) armata, Walcott: 35th Report N.T. State 

 Museum Nat. Hist., p. 7, pL xvii, fig. 10. Bird's Eye and Black 

 Eiver Limestones : Herkimer Co., N.Y. 



(4) 1884. Isochilina Ottawa, Jones : Ann. Nat. Hist., ser. v, vol. xiv, p. 345. 



Chazy Limestone, 5 miles west of L' Orignal, and Calciferous Sand- 

 rock, Grenville. 



(5) 1889. Primitia [Isochilina'] grecjaria, Whitfield : Bull. Amer. Mus. Nat. Hist., 



vol. ii, p. 58, pi. xiii, figs. 3-5. Calciferous formation : Cave Island, 

 Ball's Bay, Vermont, Lake Champlain. 



(6) 1889. Frimitia [Isochilina'] cristata, "Whitfield: ibid., p. 59, pi. xiii, figs. 1 



and 2. With the foregoing. 



1889. Primitia [Isochilina] Seeleyi, Whitfield : ibid., p. 60, pi. xiii, fig. 6. 



Limestone : Shoreham, Vt., and Providence Island, Lake Champlain. 



1890. Isochilina lineata, Jones: Quart. Journ. Geol. Soc, vol. xlvi, p. 21, 



pi. ii, figs. 5a-b, 8a-b. Hamilton Group : N.Y. State. 

 1890. Isochilina{?) fabacea, Jones: ibid., p. 22, pi. ii, fig. 11. Hamilton 

 Group : Lake Erie, N.Y. 



1890. Isochilina Seeleyi (Whitfield), Jones: ibid., p. 22, pi. i, fig. 7. Bird's 



Eye Limestone (?) : Shoreham, Vermont, and Providence Island, 

 Lake Champlain. 



(7) 1890. Isochilina gregaria (Whitfield), Jones: ibid., p. 22, pi. i, figs. 9 and 



10. Calciferous Sandrock formation : Cave Island, Ball's Bay, Lake 

 Champlain, Vermont. 



(8) 1890. Jsoc7i«/i«« ms^flte (Whitfield), Jones : ibid., p. 23, pi. i, fig. 8. Cave 



Island, as above. 



(9) 1890. JsocAi&aa (?), sp., Jones : ibid., p. 23, pi. i, fig. 15. Cave Island, as- 



above. 



1891. Isochilina, grandis, Jones, var. latimarginata : Coutrib. Micropal. 



Canad., 1891, p. 78, pi. x, figs. 1-4. Silurian: Manitoba and 



Saskatchewan. 

 (10) 1891. Isochilina Ottawa, Jones, var. intermedia, uov. : ibid., p. 66,^ pi. x, 



figs. 10, 11. Chazy to Lower Silurian or Cambro-Silurian. 

 1891. Isochilina Whiteavesii, nov. : ibid., p. 68, pi. x, fig. 13. Trenton 



Limestone, Lorette. 

 1891. Isochilina Amii, no\. : ibid., p. 68, pi. x, fig. 14. Trenton Limestone, 



Lorette. 

 1891. Isochilina labellosa, nov. : ibid., p. 69, pi. x, fig. 19. Chazy Series^ 



Aylmer, Quebec, and Bu'd's Eye and Black River Limestones, 



Carleton, Ontario. 

 1891. Isochilina subnodosa, Ulrich : Journ. Cinciu. Soc. Nat. Hist., vol. xiii, 



p. 177, pi. xi, figs. 7«-e. Upper Trenton Limestone : Perry^^ille, 



Kentucky. 

 1891. Isochilina Saffordi, Ulrich: ibid, p. 178, pi. xi, figs. \Oa-d. Upper 



Trenton Limestone: Nashville, Tennessee. 

 1891. Isochilina ampla, Ulrich: ibid., p. 179, pi. xi, figs. Sa-d. Upper 



Trenton Limestone : Nashville, Tennessee. 

 1891. Isochilina Jonesi, Wetherby : UMch, ibid., p. 179, pi. xi, figs. 9a-e. 



Upper Trenton Limestone : Harrodsburg, Kentucky. 

 1891. Isochilina Kentucky ensis, Ulrich: ibid., p. 179, pi. xi, figs, lla-d. 



Upper Bird's Eye Limestone: Kentucky. 

 (11 & 12) 1891. Isochilina Amiana, Ulrich: ibid., p. 180, '^ pi. xi, figs. 12ff-c; 



and var. insignis, Ulrich, p. 181, pi. xi, fig. 13. Upper Chazy (?) : 



Ottawa, Canada. 

 (13) 1903. Isochilina gregaria (W'hW&eld.), var. Ulrichiana. Figs. 1 and 2 in this 



paper. Trenton (?) formation, in Glacial Drift, Hamilton, Ontario. 



^ The definition of varieties is carefully given at p. 67, and the localities enumerated. 



2 Footnote at p. 181: "Since the above was written I have received from 

 Professor T. Rupert Jones proofs of the plates which have been prepared for the 

 Geological Survey of Canada. On plate x I notice figs. 10« and 11a, because I am 

 satisfied that they have been drawn from specimens of I. Amiana. These figui'es are 

 marked ' I. Ottawa variety,' but for the reasons stated above I cannot accept this 

 designation for my specimens." 



