205 



HAPLOCERAS BEUDANTI, Brongniart. 

 Plate 26, figs. 1 and la. 



Ammonites Beudanti, Alex. Brongniart. 1822. In Cuvier's Environs de Paris, 



pp. 95, 99, pi. 7, fig. 2. 



d'Orbigny. 1840. Paleontologie Francaise, Terrains 



Cretaces, Vol. I., p. 278, pi. 33, figs. 

 1-3, and plate 34. 



" Pictet. 1860. Paleontologie Suisse., Fossiles 



de Ste Croix, Vol. I., p. 277, pi. 40. 

 With references to other authors. 



" Stoliczka. 1865. Palseontologia Indica., Creta- 



ceous Cephalopoda of Southern India, 

 Vol. I. p. 142, pi. 71, figs. 1-4, and 

 pi. 72. 



" Eichwald. 1868. Lethaea Rossica, Vol. II., sec. 2, 



p. 1142. 



Form A. Umbilical margin rectangular. 



Bear Skin Bay, Skidegate Inlet : five specimens, one measuring about 

 three inches and three-quarters, and the others varying from an inch 

 and a-quarter to an inch and three-quarters in their greatest diameter. 



Form B. Umbilical margin broadly rounded. 



North shore of Cumshewa Inlet: upwards of ninety specimens, 

 most of which are well preserved and nearly perfect, though the outer 

 lip is never entire, and which vary from one inch and a-half to five 

 inches and three-quarters in their maximum diameter. 



Brongniart's original description of A. Beudanti is not accessible to 

 the writer, but Pictet and Eichwald both agree in stating that its um- 

 bilical margin is rectangular. Pictet in particular is very explicit on 

 this point, as may be seen by the following extract from his remarks 

 on the affinities of that species in the first volume of the Paldontologie 

 Suisse : " Le caractere le plus fixe et le meilleur, dans notre opinion, 

 est le forme meme des bords de cet ombilic. Dans FA. Beudanti les 

 tours sont plats et ne s'iufle'chissent pas en dedans. L'ombilic est 

 horde", comme nous 1'avons dit, par une muraille verticale dont le som- 

 met est une carene rectangulaire."* 



On the other hand, in most of d'Orbigny's and Stoliczka's figures of 



* Paleontologie Suisse. Fossiles du Terrain Cre'tace's des environs de Sainte Croix. Geneva, 

 1858-60. Vol. I., p. 279. 



