16 AUT. 2. H. YABE 1 CRETACEOUS 



Turrilites sp. of Jimbö is a small specimen, of ill preservation, 

 l)nt its form and surface markings are so like the two individuals 

 above described tliat it may safely be regarded as belonging to 

 the same species. 



Compare Heterocerns elongcdnm Wptiteaves^^ from the Na- 

 naimo group of Vancouver. Though decidedly distinct, the two 

 show certain similarities in their characters. 



The writer takes this opportunity of associating with this 

 species the name of Mr. ( )T8ur\:A of the Imperial Geological 

 Survey, who once undertook a geological trij^ in the IMesozoic 

 district along the upper course of the Yubarigawa. 



Localities and horizon : — The first specimen was picked up 

 in the river bed of the Yubarigawa above the confluence of its 

 right branch, the Wenhorokabets, with it, while the second is 

 from the Pachydi^nis-heds of the Kikumezawa, a tributary of the 

 Ikushumbets. Jdebo's specimen is lal)elled " Ponnaibuts, a place 

 close to the town of Urakawa, Hidaka Prov." 



Vae. MULTICOSTATA m. 

 PI. III., fig. 9; pi. IV., fig. 3; pi. VI., fig. S. 



Under this head, the writer brings four fragments of turreted 

 shells which in their generjd ]ia])it agree fairly well with the 

 typical species, but differ in having more open coils, slender 

 whorls, and narrower and more numerous ribs. Consequently, the 

 ribs of these shells are set more closel}^ and also more obliquely 

 than in the typical species. 



1) WiiiTKAVES; Mosozoic Fossils. Pt. 2, ji. 100, pi. XII. Pt. 5, p. 3;31, pi. XUV., %. 2. 



