352 



narrow tongue-like process of each constriction, on the external side of 

 A. Selwynianus. In A. diphylloides these processes are much more 

 rounded." These conclusions, it will be seen, are essentially similar to 

 those previously arrived at by the writer in 1879. and expressed on page 

 105 of this volume. 



Pleuropachydiscus Hoffmannii (Gabb). Var. 



Ammonites Hoffmannii, Gabb. Var. 1869. Geo]. Surv. Calif., Palseont., vol. ii, p. 131, 



pi. 20, fig3. 8 and 8 a. 

 Desmoceras Hoffmannii, Stanton. 1897. Journ. Geol. Chicago, vol. v, pp. 597 and 598. 

 Pleuropachydiscus Hoffiaanni, H,yatt. 1900. In Eastman's ti'ansl. of Zittel's Text Book 

 of Palaeontology. 



A well preserved and testiferous fragment of an Ammonite collected 

 at the Sucia Islands by Dr. Newcombe in 1896, seems to be identical 

 with the variety of A. Hoffmannii, from Cottonwood Creek, that Gabb 

 describes on pages 131 and 132 of the second volume of the Palseontology 

 of California, and figures on Plate 20 of that volume, though it is not 

 very much like the typical form of that species. In the Sucia Island 

 fragment the volution is not quite so wide as high, and the surface 

 ornamentation consists of very small, flexuous, transverse ribs, with a 

 comparatively large rib interposed at distant intervals. Between two of 

 these larger ribs there are about twenty-five of the smaller. 



Hauericeeas Gardeni (Baily). 



Ammonites Gardeni, Baily. 1855. Quart. -Tourn. Geol. Soc. London, vol. ii, p. 4.56, pi. ii, 

 fig. 3. 



II II Stoliczka. 1865. Cret. Cephal. S. India, p. 61, pi. 33, fig. 4. 



.1 .1 Whiteaves. 1879. This volume, pt. 2, p 102. 



Desmoceras Oardeni, Zittel. 1884. Handbuch der Palseont., Band ii, p. 466. 



II 11 Yokoyama. 1890. Versteiner. ausder Japanische Kreide, Palseonto- 



graphica, vol. xxxvi, p. 184, pi. xx, figs. 10, «, h, c. 

 Desmoceras ( Hauericeras) Gardeni, Kossmat. 1897. Beitr. zur Palseont. Oesterreich- 



Ungarns und des Orients, vol. xi, p. 123, pi. xviii, 

 figs. 7, 8 and 10. 



Puntledge or Comox River, atComox, Y.I., Dr. C. F. Newcombe, 1892, 

 two specimens, one of them a well preserved cast of the interior of the 

 chamber of habitation; and J. B. Bennett, 1894 or 1895, four specimens. 

 Trent River, V". [., W. Harvey, 1896, one specimen and a fragment ; 

 Nauaimo River, W. Harvey, 1901, two specimens; all determined by 

 the writer. 



Of two of these specimens from Comox, Dr. Kossmat wrote as follows : 

 "The Vancouver specimens of D. {H.) Gardeni agree perfectly with the 



