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PAEEBTSIA. 155
Vnio corrugata, Lamarck, An. sans Vert, vi, 1819, p. 78; Deshaves,
Enc. M(3th. ii, 1827, p. 584, pi. 248, flg. 8.
Vnio [Potamida) corrugata, Swainson, Tr. on Mai. 1840, p. 268,
fig. 51; p. 281, fig. 57.
Tlnio corrugata, Eetzius, Diss. Hist. Nat. 1778, p. 18; Speugler,
Skriv. Selsk. Nat. iii, 1793, p. 68; Hanley, Test. Moll. 1842,
p. 197; Biv. Shells, 1843, p. 197; Catlow & Reeve, Coneh.
Norn. 1845, p. 57; H. & A. Adams, Gen. Rec. Moll, ii, 1857,
pp. 493, 497 ; Kiister, Conch. Cab., Unio, 1802, p. 289, pi. 97,
fig.s. 3,4: Blanford, J. A. S. B. xxxv, 1867, p. 136; Sowerby,
Conch. Icon, xvi, 1868, pi. 71, fig. 360; H. & T., C. I. 1876,
p. 21, pi. 45, figs. 2-5; Pajtel, Conch. Sam. iii, 1890, p. 149.
Margarita ( Vnio) corruyatus, Lea, Sjn. 1836, p. 29 ; 1838, p. 21.
Margaron (Unio) corrugaius, Lea, Syn. 1852, p. 20; 1870, p. 30.
Mga spuria, Gmelin, Syst. Nat. 13th ed. 1788, p. 3222; Wood,
Gen. Conch, i, 1815, p. 110; Lamarck, An. sans Vert, vi, 1819,
p. 80.
Mga gadif.ana, Schreiber's Versuch. 1793.
Vnio multidetitatus, Philippi, Conch, iii, 1847, p. 46, pi. 3, fig. 4 ;
Kiister, Conch. Cab., Vnio, 1856, p. 1.36, pi. 36, fig. 5; Psetel,
Conch. Sam. iii, 1890, p. 160.
Margaron {Vnio) mtdiidentatus. Lea, Syn. 1870, p. 50.
Vnio fulmineus, Philippi, Conch, iii, 1847, p. 46, pi. 8, figs. 5, 6 ;
Kiister, Conch. Cab., Vnio, 1862, p. 286, pi. 96, figs. 2, 3 ; Psetel,
Conch. Sam. iii, 1890, p. 153.
Vnio lutens, Lea, Proc. Acad. Nat. Sci. Philadelphia, viii, 1856,
p. 93; Journ. Acad. Nat. Sci. Philadelphia, iii, 1857, p. 291,
pi. 24, fig. 4 ; Obs. Genus Vnio, vi, 1857, p. 11, pi. 24, fig. 4.
Margaron (Vnio) lutens, Lea, Syn. 1870, p. 46.
? Vnio semirugatus, Chenu, Conch, iii, 1858, pi. 12, figs. 2, 2 a.
Vnio merodabensis, Kiister, Conch.-Cab., Vnio, 1861, p. 233, pi. 78,
fig. 4; Blanford, J. A. S. B. xxxv, 1866, p. 142; Psetel, Conch.
Sam. iii, 1890, p. 159.
Vnio wgnegicnr/aensis, IT. & T., C. I. 1876, p. 21, pi. 45, fig.6.
V7iio tennenti',11. & T., C. 1. 1876, p. 22, pi. 45, figs. 7 & 9; Pt-etel,
Conch. Sam. iii, 1890, p. 169.
Vnio phayresi, Theobald MSS.
Original description.—Testa viridescens, tenera, peliucida, ab
utraque cardinis parte et in natibiis striis elevatis rugosis, figuraque
a prsecedente distincta. Valvulaj intus striis radiantibus, subtilissimus
notantur. Ctetera uti in praicedente. Epidermide
remota margaritacea evadit.
Hah. Elvers of Coromandel.
The species has a wide range and is represented in the Indian
Museum Collection by a long scries of specimens, definite localities
for which are as follows:—Garchiroti Tabsil: River Dukkaree
near Umballa; Ceylon; Sewan, close to the Indus; Gudur,
Madras Presidency ; Manbhoom ; Patna ; Berbampore; Murshidabad
District; Brahmapuri Tabsil; Bangalore; Phenchooganj,
Sylhet; Singpal Garki, Sepal; Arrab, Assam.
As the original description is short and somewhat inadequate,
the following taken from the ' Conclioiogia Iconica' may be of
interest:—Testa parva, viridi, subventrieosa, magis minusve ovah,
vix intequilaterali, laevigata, paucis autera linearibus obliquis nates