201 



by about twenty oblique but nearly straight, narrow and widely dis- 

 tant, simple raised ribs, which are more or less acute and which 

 become obsolete upon the periphery. As measured in the centre of 

 one of the sides of the last whorl, these ribs are one inch and a-half 

 apart at the commencement of the volution and two inches and a-hah 

 apart at the aperture. A small fragment of the test which remains on 

 the periphery shows that the outer surface of the shell is marked' by 

 extremely obscure and rather fine ribs, which average about one line 

 in breadth near the aperture. 



According to Stoliczka,* "Ammonites Beudanti is, in Europe, charac- 

 teristic of the G-ault, especially of its middle strata; it is known from 

 many localities in France, Switzerland, Germany, England and Russia; 

 and also from the province of Constantino in Algeria." In Southern 

 India it occurs of great size at Odium, Mooraviatoor and Pondicherry, 

 and, as has been already stated, it is by far the most abundant of all 

 the Ammonites collected by Dr. G. M. Dawson at the Queen Charlotte 

 Islands. 



HAPLOCERAS PLANOLATUM, Sowerby. (Sp.) 

 Plate 28, fig. 1. 



Ammonites planulatus, Sowerby. 1827. Mineral Conchology, Vol. 



VI., p. 136, pi. 570, fig. 5. (Not A. 

 planulatus, Schlotheim.) 



Ammonites Maijorianm. d'Orbigny. 1884. Paleontologie Francaise, Ter- 



rains Cretaces, Vol. I., p. 267, 

 pi. 79. 



" Gaudama, Forbes. 1846. Transactions of the Geo- 



logical Society of London, Vol. 

 VII., p. 113, pi. 10, fig. 3. 

 Ammonites Mayorianus, Pictet & Roux. 1848. Fossiles des Gres Verts, p. 



37, pi. 2, fig. 5. 

 " <7n$</m,Sharpe. 1854. Fossil Cephalopoda of the 



Chalk, p. 28, pi. 11, fig. 3. 



" planulatus, Sharps. 1854. Idem., p. 29, pi. 12, figs. 3-4. 



" Mayorianus, Pictet. 1860. Paleontologie Suisse, Fos- 



siles de Ste. Croix.p. 283 



" planulatus, Stoliczka. 1865. Palseontologia Indica, Creta- 



ceous Cephalopoda of Southern 

 India, Vol. I. p. 134, pis. 67 and 68 



North shore of Cumshewa Inlet : one small specimen about three 

 inches and a-quarter in diameter, and two large ones, one ten inches 

 and the other fully eleven inches in their greatest diameter. 



* Palseont Indica. Cret. Ceph. of S. India,!?. 143. 



March 25th, 1884. 2 



