PLEIODOX 1377 



Jridina ovata Svvainson, Phil. Mag., LXI, 1823, p. 112. — 



Rei%ve, Conch. Syst., I, 1841, p. 122, pi, xciii; Elements of 



Conch., II, i860, pi. xxxiii, fig. 184. — ^Clessin, Conch. Cab, 



Ano., 1875, p. 230, pi. Lxx, fig. 2 ; lxxi, fig. 2. 

 Platiris (Iridina) oz'ata Lf,a, Syn., 1838, p. t,t^ ; 1852, p. 54' 



1870, p. 88. 

 Pleiodon o-vata Coxkad, Jl. Ac. Xat. Sci. Phila., VII, 1854, [). 



298. 

 Pleiodon ovatns Chenu, Man., 1859, II, p. 148, fig. 728. — 



SowERBV, Conch. Icon., X\'I, 1866, pi. 1, fig. i. — Simpson, 



vSyn., 1900, p. 908. 

 Pliodon ovatiis (^jFCRMAIn, Arch. Zool. Exp. et Gen., (5), I, 



U)og, p. 59. 

 Iridina exotica Children, Brande's Jl., XV, 1823, p. ? 

 Pleiodon. macmurtriei Conrad, Jl. Ac. Xat. Sci. Phila., VII, 



1834, p. 13, pi. XIII. 

 Margarita (Pleiodon) macmurtriei Lea, Syn., 1836, p. 55. 

 Iridina I'alens Jay, Cat., 1850, p. 70. 

 Miitela z'aleus PI. and A. Adams, Gen. Rec. Moll.. II, 1857, p. 



506. 

 Platiris (Iridina) leaii Lea, Syn., 1852, p. 54; 1870, p. 88. 

 Pleiodon leaii H. and A. Adams, Gen. Rec. Moll. II, 1857, p. 



506. 

 Pleiodon sf-lendens Conrad. Jl. Ac. X^at. Sci. Phila., VII, 1854, 



p. 299. 

 Iridina splendida Chenu, 111. Conch., 1858, pi. v, figs. 2, 2a. 



2b, 2C. 2d. 



A well-known and abundant species. The hinge is strong 

 and flat, the teeth are very numerous and extend its whole 

 length. At the beaks the hinge plate is narrow, the teeth in 

 front of and behind them for some distance are narrow and 

 somewhat radial ; at <^he hinder part of the hinge they become 

 more or less V-shaped. The shell is less elongated than that 

 of P. laiideaiii. 



Var. pachyodon Bourguignat. 



Pleiodon pachyodon Bourguignat, Moll. Egypt and Ab., 1879, 

 p. 43. — Simpson, Syn., 1900, p. 909. 



