270 



cal with P. Neva, the Ammonites Neva of Forbes. The smaller one 

 differs from P. ramosum only in having slightly coarser ribs. 



Cumshewa Inlet, C. F. Newcombe, 1897 : two very imperfect specimens, 

 which may be referable to this species, but which seem to have a rather 

 wider umbilicus in proportion to the size of the shell. 



Lytoceras Batesi, Trask. (Sp.) 



Ammonites Butesii, Trask. — 1855. Proc. Calif. Acad. Sc, vol. i, p. 40. 



Gabb. —1864. Geol. Surv. Calif., Palseont., vol. i, p. 67, 



pi. 13, figs. 16 and 16, a-b. 

 „ „ Gabb. —1869. Ibid., vol. ii, p. 132, pi. 20, fig. 9 a, and 



pi. 21, figs. 10, a-b. 

 Ammonites arenocostatus, Whiteaves. — 1876. This volume, pt. 1, p. 45, pi. 9, figs. 2 and 



2 a. 

 Lytoceras Batesi, Whiteaves. —1884. Ibid., pt. 3, p. 202, pi. 27, fig. 1. 



Stanton. —1896. Bull. U.S. Geol. Surv., No. 133, p. 76, pi. 



13, figs. 9-11. 



East end of Maud Island, Dr. C. F. Newcombe, September, 1895 : 

 three small specimens. Lina Island, Skidegate Inlet, Dr. Newcombe 

 1897 : a specimen (now in the Museum of the Survey) about two inches 

 and three-quarters in its maximum diameter. According to Dr. Koss- 

 mat, (Mittheil. Palaont. Inst. Univ. Wien, Band IX, p. 113) this species 

 is a typical Lytoceras and belongs to the group oi L. fimbriatum. (Sowerby.) 



Lytoceras (Gaudryceras) Sacya, Forbes (Sp.) 



Ammonites Sacya, Forbes. 1846. Trans. Geol. Soc. London, Ser. 2, vol. vii, p. 113, 



pi. 14, fig. 10. 

 Ammonites Buddha, Forbes. 1846. Ibid., vol. vii, p. 112, pi. 14, fig. 9. 

 Ammonites Sacya, Stoliczka. 1865. Palseontologia Indica, Cret. Fauna S. India, p. 



154, pi. 75, figs. 5-7 ; and pi. 76, figs. 2 and 3. 

 Ammonites Saci/a, var. Sachalinensis (in part). Fr. Schmidt. 1873. Kreidepetrefacten 

 von Sachalin (Mem. Acad. St. Petersbourg, vii Ser., Tome xix. 

 No. 3) p. 15, pi. 2, figs. 3 and 4. 

 Amirionites filicinctus, V7h\te»,yeii* 1876. This volume, pt. 1, p. 43, pi. 2, figs. 2, 2 a-c, 



and 3. 

 Lytoceras Sacya, Whiteaves. 1884. Ibid., pt. 3, p. 203, pi. 25. 



u H M. Yokoyama. 1889. Versteinerungen aus der Japanischen 



Kreide (Palaeontographica, vol. xxxvi) p. 178, pi. 18, figs. 

 12 and 13. 



II H K. Jimbo. 1894. Fauna der Kreide von Hokkaido (Palseontol 



Abhandlungen, vol. vi, pt. 3) p. 34 (180), pi. 6 (22), fig. 1. 



II M Stanton. 1894. Stanton and Diller. The Shasta-Chico Series 



Bull. Geol. Soc. America, vol. v, p. 445. 



Lytoceras (Gaudryceras) Sacya. Kossmat. 1895. Untersuchungen iiber die Siidindische 



Kreideformation, (Mittheil. Paliiontolog. Instit. Uni- 

 vereitat Wien," Band ix,) p. 119. 



