66 CERNOHORSKY 
C.perplexa Schepman, The outer lip in Anarithma is usually distinctly denticulate in 
adult specimens of some species, with the posterior pair of denticles larger than the 
rest. 
Iredale (1916) did not originally designate a type for his new genus Anarithma in 
accordance with Art.67c and 68b of the Code of ICZN (1985). Iredale (1916) listed his 
new genus as “Anarithma nov. gen.” (and not gen.n., sp.n.), but mentioned that 
Anarithma is “proposed for the shell commonly known as Columbella lachryma 
Gaskoin”. Since an original type designation must be rigidly construed according to 
the Code of ICZN, Iredale’s type selection is only a designation by indication, i.e. by 
monotypy (Art.68d of ICZN). In introducing his new genus Zafrona on the other 
hand, Iredale (1916) explicitly named Colombella isomella Duclos as the “type”. 
Mitromorpha (Anarithma) metula (Hinds, 1843) (Figs. 2-14) 
1843. Clavatula metula Hinds, Proc.Zool.Soc.Lond. Pt.11:44; 1844 Hinds, Zool.voy. 
H.M.S.“Sulphur” 2(1):23, pl.7,fig. 12. 
1845. Mitra lachryma Reeve, Conch.Icon, 2:pl.32,fig.258. 
1848. Colombella pamila Chenu, Illust.Conchyl, pl.22,figs.11,12 (fide Iredale, 1916). 
1860. Cythara garrettii Pease, Proc.Zool.Soc.Lond. p.147; 1965 Kay, Bull.Brit.Mus.(Nat. 
Hist.),Suppl.1:32,pl.10,fig. 11. 
1871. Columbella (Anachis) pusiola Dunker, Malak.Blatter 18:157 (fide Iredale, 1916). 
1871. Columbella (Anachis) nana Dunker, Malak.Blatter 18:157 (fide Thiele, 1924). 
1896. Columbella (Seminella) pacei Melvill & Standen, J.Conch.8:275, pl.9,fig.5 (non E.A. 
Smith, 1895). 
1897. Columbella (Seminella) stepheni Melvill & Standen, J, Conch. 8:407 (nom.subst. 
pro Columbella (Seminella) pacei Melvill & Standen, 1896). 
1899. Columbella lachryma var. producta Hervier, J.Conchy1.47(4):381 
1899. Columbella lachryma var. abbreviata Hervier, ibid. 47(4):381 (non Doderlein, 1862; 
nec Bell, 1871). 
1899. Columbella lachryma var. nitescens Hervier, ibid. 47(4):382. 
1899. Columbella sublachryma Hervier, thid. 47(4):382,pl1.14,fig.1. 
1899. Columbella sublachryma var. sphaerica Hervier, ibid.47(4):384. 
1899. Columbella stepheni var. inornata Hervier, tbid. 47(4):386. 
1964. Columbella dibolos Bernard, Ann.Natal Mus. 16:17, fig.1f (fide Kilburn, 1986). 
1979. Mitrolumna iki Kay, Hawaiian mar.shells 64(4):349, fig. 1 15D. 
1986.2? Anarithma maesi Drivas & Jay, La Conchiglia 18(208-209):9, textfig. 
TYPE LOCALITY. None (metula; lachryma and pamila); Hawaiian Is (garrettii); Fiji 
Is (pusiola and nana); Lifu, Loyalty Is (pacei; stepheni; producta; abbreviata; 
nitescens; sublachryma; sphaerica and inornata); Umdloti, Natal, 40 fms. [73 m] 
(dibolos); Kepuhi Pt., Oahu, Hawaiian Is, 60 m (iki); Reunion I (maesi). 
DISTRIBUTION. From S§,E. Africa to the Hawaiian Is and the Tuamotu Archipelago. 
Type specimens. The holotype of Clavatula metula Hinds (ex-Lombe-Taylor 
collection) is in the B.M.(N.H.) No. 1879.2.26.81., length 4.5 mm, width 1.6 mm. The 
shell has 4'4 whorls of teleoconch and a conical protoconch of 4 smooth, white 
embryonic whorls, sutures with a sutural girdle followed by a concave trough and 
slanting axial ribs which are nodulose on the posterior end, ribs bisected by spiral 
