PACE: ON THE COLUMBELLIDA, 153 
xanrHoLguca (G. B,. Sowerby), Jan. 17, 1882: ‘ Hngina xantholeuca, 
sp. nov.”: Proc. Zool. Soc., 1882, p. 119, pl. v, fig. 9: Tyrz.— 
Coll. J. C. Melvill : Zoc.—Mauritius. 
xavertana, J. E. Tenison-Woods, 1877: ‘‘ Columbella waveriana, n.s.””: 
Proc. R. Soc. Tasmania, 1876, p. 134 [no fig.]: 7yvrx.—Mus. R. 
Soc. Tasmania [ Hobart]: Zoc.—N. Coast, Tasmania. 
xrpurrELLA [? = C. rustica (Linn.)], P. L. Duclos, 1835 [ Apr. 1840 |: 
“© Col. —Xiphitella”’: Hist. nat. Coq. univ., pl. ix, figs. 13-4: 
Tyrz.—[?|: Loo.—[?] 
YAUSAPATA [i.e., gausapata |, Gould. 
youpina, P. L. Duclos, 1835 [ Apr. 1840]: ‘* Colombella Yoldina”’ : 
Hist. nat. Coq. univ., pl. viii, figs. 9-10 [no descr. ]: Z'yrz.—[?]: 
Loc.—|?| 
YORKENSIS, Crosse [MS., = Crosse & Fischer, sp. |. 
yorKENSIS [group of C. semiconvera (Lam.)|, J. OC. H. Crosse & 
P. Fischer, 1865: ‘ Columbella Yorkensis, Crosse, ms.”?: Journ. 
Conchyl., vol. xiii, p. 55, pl. ii, fig. 6: Zyru.—Coll. Angas 
[ Brit. Mus., London (!)]: Zoc.—York Peninsula. 
zarricrum (J. C. Melvill), Mar. 1894: ‘‘ Engina zatricium, u.sp.” : 
Proc. Malac. Soc. London, vol. i, p. 51, fig.: Zvez.—t( Brit. Mus., 
London]: Zoc.—*‘ Lifu, Loyalty Islands (Rev. James Hadfield).” 
zeBRA, W. Dunker [ MS.,= Kobelt, sp. ]. 
zEBRA, J. BE. Gray [MS., = Sowerby, sp. ]. 
zepra [= Engina|, W. Kobelt, 1897 [1896]: ‘‘Columbella (Engina) 
zebra Dunker”: in Martini & Chemnitz, Conch. Cab., new ed., 
pp. 273-4, pl. 36, figs. 5-6: Zyrz.—Mus. Senckenberg: Loo.— 
Polynesia. 
zeBRA [group of C. terpsichore, Sby.|, G. B. Sowerby 1 [? = Wood, 
sp. |, 1844: ‘‘ Col. Zebra Gray”: Thes. Conch., sp. 46, fig. 105: 
Tyrz.—|[?|: Loc. New Zealand.” 
zeBRA (W. Wood), 1828: ‘‘[Buccinum] zebra”: Suppl. Index Test., 
p. 18, pl. 4, fig. 30 [mo deser.]: Zyrrx.—Coll. Gray: Loc.— 
‘¢ Pacific Ocean.” 
zeBRA, Zelebor [? }. 
ZEBRIOLATA [=C. Peasei, Marts. & Langk.], J. Hervier, Dec. 26, 
1899: Columbella nanisca, Herv., var. zebriolata, Herv.: Journ. 
Conchyl., vol. xlvii, p. 365, pl. xin, fig. 8: Tyrr.—{ Coll. Société 
de Marie, Lyons]: ZLoc.—Litu. 
zetina, P. L. Duclos, 1835 [ Apr. 1840]: ‘‘ Col. Zelina”: Hist. nat. 
Coq. univ., pl. iv, figs. 5-6 [no descr.]: Tvpx—[?]: Loc.—|?] 
zEPA [| = Engina], P. L. Duclos [1846-58]: “C. [ Colombella | Zepa” : 
in Chenu, LIllust. Conch., pl. xix, figs. 9-10 [mo descr.]: 
Typz.—[?]|: Loe.—[?] 
farrett, R. Hoernes & M. Auinger, Dec. 31, 1880: “ Columbella 
(Anachis) Zitteli nov. form.” : Abhandl. geol. Reichsanst., vol. Xil, 
p- 99, pl. xi, figs. 19-21: Zvrx.—Hof-Mineralien-Cabinet, Vienna : 
Loc.—tLapugy. 
