684 PROCEEDINGS OF THE NATIONAL MUSEUM. 



fUNIO PLATYRINCHOIDEUS Dupuy. 



Unio plaiyrinchoidem Dupuy, Cat. Ext. Gall. Test, 1849;' * Hist. Moll. Fr., W, 

 1852, p. 649, pi. XXVII, fig. 16.--"?Dkouet, Nay. Fr., II, 1857, p. 100, pi. ix, 

 fig. 1.— P/KTEL, Conch. Sam., Ill, 1890, p. 163. 



'Unio plaiyrhynchmdens Westp:rlund, Faun. Pal. ,11, Pt. 7, 1890, p. 121. 



* Unio 2)latyrrliyric]ioi(leiis Sowerby, Couch. Icon., XVI, 1868, pi. lxx, tig. 3.58. 

 'Unto diniielis Gassiks, Actes. Soc. Liuu. deBord, XXVI, 1866, p. 132, pi. i, 



fig. 8.— "-Westkhlund, Faun. Pal., II, Pt. 7, 1890, ]). 110.— *PvEtel, Couch. 

 Sam., Ill, 1890, p. 150.— * Locard, Coq. de. Fr., 1893, p. 199. 

 Unio lardeliavus Pkcchioli, Bull. Mai. It., II, 1869, p. 163, pi. V. 



Soutli France. 



I UNIO ELONGATULUS C. Pfeiffer. 



* Unio eJoixjaiuIaC. Pfeiffer, ^ Nat. Deuts., L. and S. Moll., 11, 1825, p. 35, pi. viii, 



figs. 5, 6.— Koss.MASSLER, IcoD., II, 1835, p. 23, pi. ix, fig. 132; XII, 1844, p. 

 27, pi. LVi, fig. 751; VI, 1879, p. 42, pi. CLXii, figs. 1644, 1645.— PORRO, Mai. 

 Conio, 1838, p. 114.— Catlow and Reeve, Conch. Norn., 1845, p. 59. — 

 KusTFR, Conch. Cab. Unio., 1854, p. 104, pi. xxviii, figs. 4, 5. — Droukt, Nay 



Fr., II, 1857, p. 91, pi. vi, fig. 2 H. and A. Adams, Gen. Rec. Moll., II, 1857, p. 



491.— Sowerby, Couch. Icon., XVI, 1868, pi. lxxxv, fig. 451.— Drouet, J. 

 do Couch., XXVIl, 1879, p. 331.— "* Clessin, Moll. Oest., 1887, p. 735.— 



* Westerlund, Fauu. Pal., II, Pt. 7, 1890, p. 163.— *Pj<;tel, Conch. Sam.. Ill, 

 1890, p. 151.—* Locard, Coq. de Fr., 18!t3, p. 166, fig. 180. 



* Margarita ( Unio) elongatuJns Lea, Syu., 1836, 1838, p. 24. 



" Margaron ( Unio) elongatidus Lea, Syu., 1852, p. 37, 1870, p. 59. 



Central Europe. 



tUNIO TUMIDUS Retzius. 



'^Unio tnmidus Retzius, Diss. Hist. Nat., 1778, p. 17. — Spengler, Skriv. Selsk. 

 Nat., Ill, 1793, p. 57.— NiLSSON, Hist. Moll. Svec, 1822, p. 109.— Rossmassler, 

 Icon., I, 1835, p. 117, pi. iii, figs. 70, 70a, 705; III, 1836, p. 27, pi. xiv, figs. 

 202-204; VIII, 1838, p. 41, pi. XL, fig. 543; XII, 1844, p. 32, pi. lx, tigs. 

 772-778.^— * Brown, L. and F. W. Conch., 1836, p. 109, pi. xxi, tigs. 8,9.— 



* Hanley, Test. Moll., 1842, p. 205; *Biv. Shells, 1843, p. 205.— "Brown, 111. 

 Rec. Conch., 1844, p. 82, pi. xxxii, figs. 5-8.—* Catlow and Reeve, Conch. 

 Norn., 1845, p. 65.—* Stabile, Faun. Lug., 1845, p. 61, pi. iii, fig. 74. — '^ Stein, 

 Die Leb. Schueckeu, 1850, p. 103.—^ Dupuy, Hist. Moll. Fr;, 1852, p. 655, pi. 

 xxviii, fig. 20.— * Forbes and Hanley, Hist. Brit. Moll., II, 18.53, p. 140, pi. 

 XL, fig. 1.— *KusTER, Couch. Cab. Unio, 18.54, p. 71, pis. xvii, xviii.— 



* Moquin-Tandon, Moll. Terr. Fluv., II, 1855, p. 577, pi. li, figs. 11, 14. — ^ von 

 Wahl, Arch, fiir Naturkuude Liv., 2d ser., I, p. 115.— *Nordenskiold and 

 Nylander, Fin. Moll., 1856, p. 85, pL vi, figs. 7, 8.—* Gray, Turton's Man , 

 18,57,p.'297.— ^Drouet, Nay. Fr., II, 1857, p. 110, pi. ix, fig. 2.— *H. and A. 

 Adams, Geu. Rec. Moll., II, 1857, p. 491.— * Sowerby, 111. Int. British Shells, 

 1859, pi. vii, No. 3.—* Jeffreys, Brit. Conch., I, 1862, p. 32.—* Reeve, L. and 

 F.W. Moll. Brit., 1863, p. 219, fig. 1.—* Reeve, Conch. Icon., XVI, 1865, pL 



' Credited by Lea to the above without page reference. I have not seen the paper. 



'^Pfeift'er credits this to Muhlfeld in litt. It is a doubtful species, perhaps a 

 variety of pictorum, but is generally smaller, thinner, and more compressed, and is 

 rather more biaugulate behind. Pfeifier's two figures represent somewhat different 

 forms, but they may be the same thing. 



^Fig. 776 is probably a form of hatanin. 



