CEPHALOPODA FEOM THE HOKKAIDO. öO 



This species agrees tolerably well with //. Gardeni in its 

 suture line, there being in both four auxiliary saddles. That 

 H. pseudogardeni differs from the present species notwithstanding 

 their great resemblance in external shape is easily seen in that 

 it has more numerous auxiliaries. 



Localities : — The Kikumezawa, a tributary of the Ikushum- 

 bets, Ishikari Proy.; the Popets, a branch of the Mukawa, Iburi 

 Prov.; Urakawa, Hidaka Proy. 



Horizon : — The only case in which the mode of occurrence 

 of this species has been determined, is in the Kikumezawa, where 

 it was found in the Pachyd i^cus-heds together with II. Gardeni. 



DESMOCERAS Zittel. 



DESMOCERAS DAWSONI Whiteaves yar. JAFONICA. 



PI. v., figs. 3, 4. 



1884. Haploceras Beudanti Whiïeaves : Mes. Foss., yol. 



I., pt. 3, p. 205, pi. XXVI., figs. 1 and la. 

 1900. Desmoceras {Puzosia) Dmvsonl Whiteaves. Mes. Foss., 



vol. I., pt. 4, p. 286, pi. XXXVIL, fig. 3. 

 The specimens of this species in the writer's collection, ex- 

 cepting one which has been figured, are more or less distorted 

 by pressure. The suture line is also quite obscure on account of 

 the bad state of preservation. 



