686 pnocEEDiNGS OF mi-: \.trrnx.iL MI'SECM. V..I..XXH. 



*Unio pictortun <;n:inx, Icon. Rc-gne Auim., II, 1829-1844, pi. xxvin, fig. 16. 



* BOURGUIGNAT, Mai. Alg., II, 1804, p. 292, pi. xxn, figs. 6-11.* REEVE, 

 Conch. Icon., XVI, 1*65, pi. xxv, fig. 123. 



*Unio reqiiicnii MICIIAT;I>, Comp. Hist. Nat. Moll. Fr., 1831, p. 106, pi. xvi, fig. 24. 



* ROSSMASSLER, Icon., Ill, 1836, p. 24, pi. xin, fig. 198. *Gu.\s, Moll. Isere, 

 1840, p. 21.* STABILE, Faun. Lug., 1845, p. 02, pi. in, fig. 1786.* GASMF.S, 

 Moll. Ageu., 1849, p. 195, pi. I, figs. 4, 5.* DUPUY, Hist. M. Fr., 1852, p. 652, 

 pi. xxvii. fig. 18. *KusrER. Conch. Cab. Unio, 1854, p. 120, pi. xxi, fig. 7; 

 xxvi, figs. 1-3; xxxvn, figs. 2-4. * DROUKT, Nay. Fr., II, 1857, p. 93, pi. vn, 

 figs. 1-3. *MoU8SON, Coq. Terr. Fluv. Pal , 1861, p. 66. * DROUET, Moll. Cote 

 d'Or, 1867, p. 102. * BENOIT, Mas. Cat. Sic., 1881, p. 170. *CLKSSIN, Moll. 

 Oest., 1887, p. 731, fig. 494. * WESTERLUND, Faun. Pal., II, Pt. 7, 1890, p. 121. 



* RETEL, Couch. Sam., Ill, 1890, p. 165. 

 I'nio lobataPmiArri, Moll. Sic., 1836, p. 67. 



f'n io bandanii ROSSMASSLER, Icon., V, 1837, p. 22, pi. xxiv, fig. 341. 



* Unio paUens ROSSMASSLER, Icou., XI, 184 9 , p. 13, pi. LIV, fig. 740.' * WESTER- 



i.r.M), Faun. Pal., II, Pt. 7,1890, p. 114. 



*Unio hispanua ROSSMASSLER, Icon., XII, 1844, p. 26, pi. LVI, fig. 747. * BOUR- 

 GUIGNAT, Moll. Pen. Con., 1863, p. 46, pi. xxiv, figs. 1-3. ' BOURGUIGNAT, 

 Rev. et Mag., XVII, 1865, p. 344, pi. xxm, figs. 1-3. *P.ETEL, Conch. Sam., 

 Ill, 1890, p. 155.* WESTERLUND, Faun. Pal., II, Pt. 7, 1890, p. 139. 

 I'nio alcroni COMPANVO and MASSOT, Bull. Soc. Pyr. d'Or, VI, Pt. 2, 1845, p. 

 234, fig. . * BOURGUIGNAT, Moll. Peu. Con., 1863, p. 49, pi. xxm, figs. 1-3; 

 Rev. etMag., XVII, 1865, pi. xix, figs. 1-3. 



*Unio rousii DUITY, Hist. Moll., VI, 1852, p. 653, pi. xvm, fig. 18. "MUSGKAVK, 

 Phot. Conch., 1863, pi. n, fig. 7. 



* 1'nio ralentinus ROSSMASSLER, Icon., Ill, 1854, p. 37, pi. LXIX, p. 852. * I'.oi i;- 



GTIGNAT, Moll. Peu. Con., 1863, p. 45, pi. xxvn; Rev. et Mag. Zool., XVII, 

 1865, p. 343, pi. xx. *WKSTERH ND, Faun. Pal., II, Pt. 7, 1890, p. 140. 

 P.KTEL, Conch. Sam., Ill, 1890, p. 171. 



* Maryaron ( J'nio) ralentinua LEA, Syn., 1870, p. 52. 



I'nio ardusianus MOQUIN-TANDON, Hist. Moll. Fr., II, 1855, p. 575. : *WKSTER- 

 LUND, Faun. Pal., II, Pt. 7, 1890, p. 109. * LOCARD, Coq. de Franc., 1893, 

 p. 205. 



* I'nio graelhianus BOURGUIGNAT, Moll. Peu. Con., 1863, p. 47, pi. xxm, Jigs. 



4-7; *Rev. et Mag., 1865, p. 345, pi. xix, figs. 4-7. * WESTERLUND, Faun. 

 Pal., II, Pt. 7, 1890, p. 140. 



*1Unio letoitrneiixi BOURGUIGNAT, Mai. Alg., 1864, p. 289, pi. xvn, fig. 47. 

 *WESTERLUND, Faun. Pal., II, Pt. 7, 1890, p. 58. *P.KTKL, Conch. Sam., 

 Ill, 1890, p. 157. 



* I'nio coiirquinianus BOURGUIGNAT, Moll. Peu. Con., 1863, p. 48; *part, Rev. 



et Mag., 1865, p. 346, pi. xxn, figs. 1,2. 



*J7nio siculus SOWERBY, Conch. Icon., XVI, 1868, pi. LXXI, fig. 364. :! 

 *Unio ravoisieri var. issericus KOBELT, Icon., new ser., I, 1884, p. 65, pi. xxvin, 



fig. 215. *WESTERLUND, Faun. Pal., II, Pt. 7, 1890, p. 142. 

 *Unio alcxandri KOBELT, Icon., 1st sup., 1895, p. 14, pi. n, fig. 2. 



Entire circummediterranean region. 



1 Credited by Rossmassler to Parreyss. I do not know where the latter described 

 it or whether he described it at all. 



-Mo<iuin-Tandon credits this to a letter from Reynies, 1843, and gives a refVronce 

 to p. 5, pi. i, figs. 6, 7, of the letter. I do not know that this was ever published. 

 Ho makes it a variety ofreqnien'n. 



3 This is J'otamida xicula Swainson according to Sowerby. I refer Swaiuson's shell 

 to Unio pictonim. 



