345 



LXiv, fig. 1, of the Cretaceous Cephalopoda of Southern India), but it 

 would now seem that the former are marked with a few distant periodic 

 constrictions as well as ribs, and that the latter is not. 



The large specimen figured by Mr. Gabb, as Ammonites Newherryanus, 

 on Plates 27 and 28 of the first volume of the Palseontology of 

 California, which he said he obtained on Vancouver Island in the fall of 

 1863, is now in the Museum of the Academy of Natural Sciences of 

 Philadelphia, and has been kindly lent to the writer, for study, by Dr. 

 H. A. Pilsbry. An actual examination of this specimen has corroborated 

 the view expressed in the second part of this volume that it should be 

 referred, not to P. Neicherryanus, but to P. Suciensis. In this and other 

 specimens of P. Suciensis the low, distant ribs are often curiously flat- 

 tened downward at their summits, for some length on the periphery or 

 siphonal region, but not on the sides. 



Several typical and characteristic examples of P. Suciensis were collected 

 at Hornby Island, by Mr. Harvey, in 1895 and 1896, and four of tliese 

 are now in the Museum of the Survey. An unusually fine specimen of 

 the same species, about six inches in its maximum diameter, collected at 

 the Sucia Islands, by Dr. Newcombe, in 1896, and now the property of 

 • the Provincial Museum at Victoria, has also been lent to the writer for 

 examination. It shews all the details of the siphonal and first and second 

 lateral lobes and saddles excellently, and has a small portion of the test 

 preserved. 



Pachydlscus Haradai, Jimbo. 



Packydiscus Haradai, J imho. 1894. Beitr. zur Kenntniss der Fauna der Kreideform, 

 von Hokkaido, in Dames and Kayser's Palaeontologische Abhandk, 

 Neue Folge Band ii, Heft 3, p. 29, Taf. ii, (xviii)figs. 2, 2a, b. 

 „ M Whiteaves. 1896. Trans. Royal Soc. Canada for 1895, Second 



Series, vol. i, p. 132, pi. in, fig. 6. 



" Nanaimo River, ten miles from its mouth, A. Paper, May, 1893: a fine 

 specimen about six inches in its maximum diameter, which agrees remark- 

 ably well with Jimbo's description and figures of P. Haradai." " Its 

 volutions are compressed at the sides, the periphery is regularly rounded, 

 and the umbilicus occupies rather less than one-third of the entire dia- 

 meter. There are eleven large continuous and distant ribs on the outer 

 volution, with from one to four rather smaller and shorter ribs between 

 them, and the intervals between all of them are finely and transversely 

 striated." (Whiteaves, 1896, op. cit. supra.) 



The Japanese type of P. Haradai is described as measuring 160 mm. 

 (or 6 1 inches) in its greatest diameter, and as being marked by about 

 eleven long ribs, bearing a single elongated tubercle on the 'umbilical 



