56 



nun. As ioi the ditroronrcB from other siKTit« pnividtsl with i\ Ion«» Ciinal» 

 0. •;. F. nnilnsnplicutiis Dkr (Novit, conch. II, |>l. 33. f. 3 ami 4l fmm Jrt|>.in, 

 K. sjH'ctrnm AU. ami HirviMconili. Icon. Kusns, pi. IS. f. (JS). also ii JiUNine«; 

 form iinil nvjntionc.l lis such hy Schrcnck (Nori1jaj>;in. Moll. p. 4l7l, and F. 

 Noviie llolliindiae Reeve (1. c, 1". 70) wliich Si-lirenck wvys in »ynonynioiis with 

 V. Speotiinn, I refer to Li.sehke, without enlerin;; into the rtlK)ve-nu!ntione<l 

 «piestion, for who.se (liscnAsion the iniiteriiil provided hy the tertiary layer« in 

 question is evidently not snflicient. 



Neptuiifa {Slpho) gracUi» da Costa. 



(Hrit. Conch, p. 124, pi. C, f. .').— Jeffa-ys, hrit. Conch, v. 4. p. 3.35.— 

 S. Wood, Cmg .Moll. I, p. 4G, pi. G, f. 10, jK-rliaps only jMirlly; wcond 

 .siippl. p. 7, pi. 2, f. 4. — Syn. I''u.su.s islandicus Forlxa and llanley, hrit. 

 JIoll. V. 3. p. 41C, pi. 103. f. 1 and 3 and pi. SS, f. 2.). 



The differences Injtween Neptunea inlandiai, which luis a hnlhifonn aj^ex, 

 N. propinqua. which has a smaller nundtcr of spiral elevated lines on the upper 

 whorls, and N. gracili.s arc but slight. The latter is cliietly said to have a slior- 

 ter canal and to Ixj smaller tlian N. islandiai Chemn.; but jierliaps S. Wood 

 may be quite right in sjiying (in his 2d &np)ilement) that all these fomis— toge- 

 ther, iierhaj«, with Sipho tortuosus, ventricosus, Sarsii and Leekenhyi— may bo 

 only 'inconstant varieties of Siplio islandicus.' — One specimen from Sbniagawa 

 has the charactei-s of N. trracilis. 



e' 



I'urjiura IdjiiUus Linne. 



(Syst. nat. eil. 12, p. 1202.— Forbes and llanley, brit. Moll. v. 3, j). 3;'»0, 

 pi. 102. f. 1-3 and pi. LL., f. 4.— Jeffreys, brit. Conch, v. 4, p. 27C.— 

 S. Woo<l, Crag.-Moll. I, p. 3G, pi. 4, f G; 2d Suppl. p. .O, pi. 1, f. 13.- 

 Gould, Rep. on the invertebr. of Mass., 2d ed. by Binney, Moll., p. 3(30.). 



The shell, variable as it is frecpient, is but seldom found in the Jap;inesc 

 tertiary ileposits. One fragment, lielonging to the common fonn with strong 

 spiral ribs and somewhat elongated in outline, has been found at Shinagawa. 



Cemoria noachina Linne. 

 (Mantissa, p. 551, as Patella.— Lowe, zoological Journal, v. 3, 1828, i>. 

 77, as Puncturella. — Gould, Rep. on the invert, of Mass. 2d c<l. p. 27C, 

 f. 537.). 



Oblong (dianii'tir.-i a.s 5 fu 3l, radially riblied, with a small fi.ssnre ii«ir tlie 

 a^nx, this small shell, about 7 mm. long, has Ix-en once found at Shinagawa. 

 The numl)er of the ribs is 20; conceutrical striiu and mostly one very feeble rib 

 in the midille of the interval are to lie seen U^twecn them. The fonn and 

 scidptiire of the shell corresjiond exactly with the quote<l figunw and mak«- it 

 impo.s.sible to identify it with the I'nget-Sound ami Orange -Harbour si^x-ies 

 mentioned in tiould's Otia conchol. p. 14. The outline, esixx;ially the very 



