fin 



This shell beloii«:;s to the waniicr ii,irt of tli'j teiiiii.-viitr Atl;iiitk: ri's;i<Mi ; Imt 

 a variuty. of eloii^sitt'd form, (st'c .leHVcvs 1. c. iiml Forints ;iii<l Ilaiilcv, ili. f. 1. 

 Cli. rufescuiis) is more horeal, ami tu this variety one of the s|iecinieiis may he 

 assigneii The remark of Weitikmitf, tliat the PpMics hau not Iw-en foimil fossil. 

 seems not tw lie [«rfectiy true, as JettVeys inentioiis one speeinien fomul in the 

 Crag 



The exact reSemhlanee of the British slieils and thnse of Taki>rashira does 

 not allow i!s t^i give them any other name in spite of ttie wide dist^mce of liahitat 

 and the scircity of the species in stiiti <i!iler tliin ijMatL'rnary. Perhaps 

 the wide Atlaiitie distrih'ition, vvhieh in 'iu L'.s th" Mo liternmean from Giliraltar 

 to the .Kgean Sea. autl New England on th.' otlu'r liaud, may account for the 

 occurrence of the 8|)ecios on the opimsite Ki<ie of the |)al;earctic continent. 



Vennrtiis imhru-utu!! DunkiT 



(Malacozooi. Bl v. ß, }.. 24Ü. ISfiit. and Mollu.sea Japon. p. 17. pi. 2. f. 

 18. — Lischke, Jap.m. Meeres-Conc;h. v. 1, p 83. — Non Sandburger, 

 Conch, d. Mainzer Hecken.«. \i. 11"2. — Syn. Serpulus Aihmisii Moereh in 

 Adams, Ann. lilag. Nat. Hist, 18Ü4. ]i. 141, Schrenck, nordjap. Moll. p. 

 GOl, anil Moeri-h, Suppl. notes to Ifeview of Vormetid;« in Proc. Zool. 

 Soc. 186;'), p. <y.).) 



In regard to this speeies. found in congregit.ed masse.s on ])ell>leB &c. 

 ahnndantly in the alluvial layei-s and living, hut r.ircly and only fnictured in the 

 tertiary deposits of T akigashira, I follow the denomination ailopted hy Lischke. 



Globulus moinlilri- Lamank. 



(Hist. nat. 2d ed , v. !). p 1 18. as liotella.— Lischke, Japan. Meeies-Conch. 

 V. 1, p r,4 I 



The true (Jloliulns monilifiT, ilat and i.-nvcred witli its sliarply eircum- 

 seril)ed, llat tubercles, has been found in small numbers ti>i;etlier with a great 

 many of G. superbus Gld. It has Ikjcu already mentioned that I did not find 

 any intermediate! forms 



Diplodnntu orhelln Gould. 



(Proc. Hdston Soc. Nat. Hist , v. 4, 1S.")|. ],. ;i(); I'dstdii .I.uunal Nat. 

 Mist., V. I), p, 3'Jö, )>1. 1"), f. 3; Otia Coneh. p. 212 — Carjienter, Proc. 

 Boston Zool. Soc , IS.öf;. p. 202 and 218.— Ia.«chl«', .liipan. Meeres-Conch., 

 V 2, |.. 133). 



The diagnosis o|' (iouM leaves nfi donlit about tlie idinlity ot unc entire 

 valve— and some fragments— frmu Takig:ishira. with his Piplmlnni.i urbella. 

 The valve in question is l.S millimeters long. 17 high, and the total thickness of 

 hoth valves would liave liocn lH. Tlie coneentrieal stria- are irregular, not very 

 strong; the outline is more regularly rounded thin in I' rotimdatn. The lateral 

 tooth is much more ohlitcratod than in I) trigonuhi, tiescrihed above 



