3H 



Goiild's s|)ociiiien wliidi wan drwlf^nl nl Kti^oxliima. Ainonj: tla- o|K"ciiiicMi8 Uicre 

 i« din' li'fl Vftlvi", wliicli Goiilil lui» imt, «|iiil<' Hat iiiiil a littii- Miialli-r, Itiit 

 corroi<|ion(linjj; in 8)ia|x> to tlie rij^lit valvi». Tlie i-nnt'i-ntriavl niiihilations an» 

 spawl over nearly tlio entire surface in niotst of llie Oji (i|icviinen8: Imt one of 

 th«-ni cxhiliitri them only in the niiihlle imrt of (he 8U^fna^ Wo may therefore 

 iissnnic the tlin'i'n'nce of wnl|itnr«' nieiilionoil hy (lonhl (iinihilistoncentiiciii t-irc. 

 '20 atl niurgiiiini liaiul protnu'tis ornata) to Ih- an imliviiliial deliciency whiuli 

 iloes not exclude our HiK-ciiuens from the above munlione«! n|ietieK 



Lulrari« XuUnlli (;..nm.l. I'l. IV, f. IC. 



(Journal i>fAai(l. Nat. Sf. rhihul. vol. 7, 1837, jv 2:J'. pi. IS. f. 1- 

 Li.'!<hko, Ja|Nin. Mwres-C'onch. v. 1, p. i:3C. — Non Mattm Nnttjilli Uocve, 

 Conch. Ic. Mactra, pi. 21, f. I'i.'». — Syn. L. Maxima Miil.hiiilorf. IVitni'jre 

 zu einer Malacuzool. Rostiica, vol. 3, p. (](j, pi. Ill, t. 1-4, 184'J ; and 

 Reeve, Conch. lc<in. Lutraria. pi. fl, f. IM, and Mactra, pi. 1, f 4; ult-o 

 Adams, tienera etc. vol 2, p. 381, pi. 101, f. I., Chenu, Manual, vol. II. 

 p. .W, f. 243. Svn. al.-^ L. i-a|«.\ (iould. Wiike« Kxpl. Kxp Moll, pi. :M. f, 

 ."ilJH ami Otiii (."oiicli. p. 7<; an.l 24f) I. 



In denominutini; tlii.-« important sjiecics found in tolerably ^niU iniudM-rand 

 large specimens at Oji (reachin«; J3U millim. in lenj;th. 00 in liei;;lit and 02 in 

 thickncsn), I follow Lisclike 1. c. The name \i. maxima, accordinjj to his «tntc- 

 ments, 1. c. p. 138, in d»ily to be api)lied to another f hell, L. maxima Jona»— iiUo 

 a Jaiüinese aiid ChineK; bhell of nearly the name length, biit'murh hmaller 

 height and thickness— and therefore üo\dd'« denomination ought to Ite actx-ptwl 

 if not the wime sliell liad lieen already descriU'd anil figure«! Iiy Connid.— The 

 hinge— liiiige-tooth bnnwl, with ap|>en<Hx and plicate«!, narn>w latend t«.fth— i« 

 well i)re.-erved and quite typical, the hhell covered with con:vtitrical «triic and 

 modenitely thick. The large nndxiues, the large, tiiiigue-hlia|ie<l imllial hinu;', 

 the anterior rounding and jwaterior truncation and oblique fidding are all prenent. 



Marlia vencriformis Deshayes. I'l. IV, f. 17. 



(I'roc. Zool. S. 00. 1853, p. 15.— Reeve Icon. Conch. Iklactni, jl 1. f. 2 — 

 Lischke, Jajwn. Meeres Conch, v. 1. p 133, v. 2, p. 121. |il. 9, f. 7 and 8). 



This sjiecies, common in tin- Tokio-IJay, ha« l>een found at Oji, but l<iw 

 fri-qiicntly than in other hxHlitics of the pliocene formation, e. g. Takigivshira 

 JIura. The si>ccimens, rather obIi<jue, obtusely carirmt^tl and imKleritely thick, 

 agree ]ierfirtly with the living ones. 



« 



Miirtra Snrhaliui'unig Schrenck. 



(Moll. d. Amurlandes u. d. Nord-Japan. Jleeres, p. 515, pi. 23, f. :i-7.— 

 Lischke, Jap. Mei're«-Conch, v. 1, p. 132— Syn. M. Ui<lortii Dkr., Novit. 

 Conch. II, p. 60, pi. 20, f. a-c). 



