61 



The bulky, ileejily furrowed shell — on whose surtUcf ;uil nioiilil hroml ribs 

 witli narrow intervals appear, much tiaHer on the moiihl tlian on the sliell 

 itself — li:is been found rarely in tlie blocks ani.i shell-layer of the Yokohama 

 Blutf. Tliough mostly only moulds, the specimens, on lieins^ comp;ired witli 

 recent Dolia, left no doubt whatever about their identity with the above-men- 

 tioned species. 



Tapes euglyptus Phili(ij>i. 

 (Zeitschrift fiir Malacozool. 1847, p. 89, and Abbildnnj^en etc. v. 3, p. 76, 

 V^eiius, d. 7, f. 3.— Sowerby, Thes. Conch, v. 2, p. G80, pi. 145, f. 17. 

 Iiis;;hke, japin. Meere3-Con:;h. v. 1, p 110, and v. 3, p. 80, pi. 6, 

 f. 8-11 ) 



Tlie species wliich belongs to the group of Tapes papilionaeeus L. show.s 

 .sculpture, pallial sinus and outline doubtlessly to be identical with some speci- 

 uiens at Yokoliaiua. One of them represents the variety figured by Lischke. 



SOUTH WKSTKRN" P.\RT OK THE YOKOHAMA BMI F. 



Cro.tssiug the bluif in its western part from N. to S., we fiinl a broad and 

 well constructed foi)t|iath leading down to the sea-siile and to the fish(Mineii's 

 hoiLses placed next to the sea. This way is deeply cut into the rock and, as it 

 crosses the line which divides the (jraternary anil the tertiary stratn willi the 

 shell-layer, here I'ully developi^d below that line, a great many shells are dug out 

 and sjireacl over a part of the ro.-id, some being also visible in their native rocks 

 on the sides of the roacl. Thus, tiiough now no dear i.lea ol the nature and 

 [losition of the str.ita is given by this exposure, yet I was able to make here 

 some adililions to the collection of fossils. The nuMd)er of species, however, 

 which I can assign with certainty to the tertiary formation, is very small and 

 includes nothing that has not bi-eii fonnd also in other phu:es. 'I'lic largest 

 number of sjiecimens is fiu'iiished by Muctra wncrifonntH I)esli., ne.\t to it by 

 Global IIS ■sujjiir'jus (iould. l>ouie sjiecimens of Lmnpnnia zniinliif L im iivlc, 

 a single ontMjf Lamjtania inulllformis Lischke (vi.le below, Takigashira Jlnr.ii, 

 on whose relation t<i L. zon ilis I have made .already some rem uks wh.ii ticitiiig 

 the latler one (from Snrugadai). one specimen of Tnjirs J.cu^siitiia !>. and some 

 of Out I I'll ijiijiis Thunb. are to lie ailded. 



TAKKiA.SHIIJA MIliA. 



Al the ^onlilern nioutli of ihi- canal which leads fnni Vokohama-harbonr 

 along the Bluff-slope and its westfin prolong.ition ami at hist ttu'ns t^> th(! south 

 and reache-s thest^a again, th(j village or Mnra of 'I'akig.ishira issituatt^d. (ioing 

 along the canil, soon aft<!r luiving lefi the .small p.irt of the ISlitlf which is inter- 

 sected by the canal, and on getting to the oj)en low ground beyond, we reach a 



