CEPHALOrODA FROM THE HOKKAIDO. 37 



AVhiteaves from the Queen Charlotte Islands. But the shell is 

 somewhat broader and periodic constrictions are less numerous in 

 the Japanese species, so that the writer feels warranted in pro- 

 posing a new specific name for it. 



According to Whiteaves, Desmoceras Daivsoni is quite 

 abundant in the Cretaceous rocks on the northern shore of 

 Cumshewa Inlet, while in Bear Skin Bay a few specimens are 

 .said to occur which are however distinguished from the typical 

 form by their rectangular umbilical margin. The latter is con- 

 sidered by that author as a variety to which the Japanese form 

 seems to approach more closely.^* 



At first, Whiteaves""' identified his specimens with a European 

 form — Ammonites Beudanti Brongniart — which is also recorded 

 by STOLiczKa as occurring in the South Indian Cretaceous fauna.^'^ 

 Afterwards, however, Kossmat^^ proved the distinction between 

 Amm. Beudanti and the allied form from South India. The 

 latter, as described by him, shows the suture line of the type of 

 Puzosia, and hence it is a species quite different from Ammonites 

 Beudanti which no doubt belongs to Desmoceras. He stated also 

 that Ammonites Beudanti of Whiteaves from the Queen Charlotte 

 Islands is a true Desmoceras. This view was afterward adopted 

 by Whiteaves'^ himself who in his later publication made a 

 new specific name for what he had formerly taken for Ammonites 



1) J. C. MERRiA:sn later reported this species from Spanisch Gulch of the John Day 

 Basin. 



2) D'Orbigny: Ter. Crétacés. Ceph. P. 278, pi. XXXIII., XXXIV. 1840.— Pictet : 

 Moll, des Grès Verts. P. ;», pi. II., lig. n. 1848.— QuE^'STEDT : Ceph. P. 222, pi. XVII., 

 fig. 10. 1849.— Pictet et Campiche: S. Croix. P. 277, pi. XL., figs. 1-4. I860.— Pakona 

 ■e BoxARELLi: Fossili albiani d'Escragnolles. P. 8() (34), pi. XI. (II.), fig. 6. 1896. 



3) Stoliczka: Foss. Ceph. Cret. Rock South India. P. 142, pi. LXXI., figs. 2-4; pi. 

 LXXII. 1865. 



4) Kossmat: Süd. Ind. Kreidet'. P. 120 (18-5). 1897. 



5) Whiteaves: Mes. Foss. Vol. I. pt. 4., P. 286. 1900. 



