NO. 1205. SYNOPSIS OF THE NAIADES— SIMPSON. 683 



p. 13, pi. Liv, fig. 738. — *Stabile, Faun. Lug., 1845, p. 60.— *Drouet, Mem. 



Ac. Dijou, VII, 1882, p. 11 (reprint).— "Westerlund, Faun, der Pal., II, Pt. 



7,1890, p. 117.— "P.ETEL, Conch. Sam., Ill, 1890, p, 158. — -Locard, Coq. de 



Fr., 1893, p. 209. 

 *Potamida sicula Swainson, Treatise on Mai., 1840, p. 282, fig. 58. 

 "Unto siculns Hanley, Biv. Shells, 1856, p. 383, pi. xx, fig. 19.— *P/etel, 



Conch. Sam., Ill, 1890, p. 167. 

 *Unio aradce Philippi, Euum. Moll. Sic, III, 1844, p. 49.— *Kuster, Conch. Cab. 



Unio, 1854, p. 105, pi. xxviii, fig. 6.— *Kobelt, Icon., IV, 1876, p. 62, pi. 



cxvii, figs. 1146, 1147.— *Drouet, .11. de Conch., XXIX, 1881, p. 25. 



* Unio dactylus Morelet, Moll. Port., 1845, p. 110, pi. xiv, fig. 2.—* Westerlund, 



Faun. Pal., II, Pt. 7, 1890, p. 111.—' Kobp:lt, Icon., new, ser., VI, 1893, p. 98, 

 pi. cxxx, fig. 1132. 



* Uniomucidus Morelet, Moll. Port., 1845, p. 111.—* Kobelt, Icon., new. ser., VI, 



1893, p. 98, pi. CLXXX, figs. 1130, 1131.— "PyEXEL, Conch. Sam., Ill, 1890, p. 



160.— '^Westerlund, Faun. Pal., II, Pt. 7, 1890, p. 111. 

 *Unio quinqueannulatus Kuster, Conch. Cab. Unio, 1854, p. 93, pi. xxv, figs. 3, 



4.— *P.ETEL, Couch. Sam., Ill, 1890, p. 165. 

 "" Unio pallens Kuster, Conch. Cab. Unio, 1854, p. 95, pi. xxv, fig. 5; xxvi, tig. 1. 

 'Unio viridiflavus Kuster, Conch. Cab. Unio, 1854, p. 96, pi. xxvi, figs. 2, 3. — 



**PyETEL, Conch. Sam., Ill, 1890, p. 171. 

 "^ Unio petrovicJiii Kuster, Conch. Cab, Unio, 1854, p. 98, pi. xxvi, fig. 5; xxvii, 



fig. 1.— ^P.ETEL, Conch. Sam., Ill, 1890, p. 163. 

 *Unio maltzani Kuster, Conch. Cab. Unio, 1854, p. 106, pi. xxix, figs. 1,2. — 



"Pjetel, Conch. Sam., Ill, 1890, p. 158. 

 "Unio laletonicus Kuster, Couch. Cab. Unio, 1861, p. 231, pi. lxxviii, \\g. 1.— 



* Servain, Hist. Mai. Bal., 1881, p. 98. 

 ^Unio proechus Bourguignat, Rev. et Mag., XIV, 1862, pi. xix, figs. 1-3; XV, 

 1863, p. 19, XIX.— * Westerlund, Faun. Pal., II, Pt. 7, 1890, p. 118. 



* Unio actephihts Bourguignat, Rev. et Mag., XIV, 1862, pi. xix, figs. 7, 8, xx, 



fig. 3; XV, 1863, p. 20. 

 ^Unio lawleymiiis Gentiluomo, Bull. Mai. Ital., I, 1868, p. .54, pi. iv, figs. 1-3. 



Europe generally; Siberia east to the Lena River and perhaps 

 farther; south into Asia Minor?; Algiers! 



jUNIO PLATYRHYNCHUS Rossmassler. 



-^ Unio lilatyrhynclms Rossmassler, Icon., II, 1835, p. 22, pi. ix, fig. 130; V, 1837, 

 p. 20, pi. XXIV, fig. 338.— 'PORRO, Mai. Como, 1838, p. 117.— * Hanley, 

 Test. Moll., 3842, p. 205; * Biv. Shells., 1843, p. 205, pi. xxiii, fig. 53.— '^ Catlow 

 and Reeve, Conch. Nom., 1845, p. 62. — * Kuster, Conch. Cab. Unio, 18.54, 

 p. 77, pis. XIX, XX. — " SowERBY, Conch. Icon., XVI, 1856, pi. xxx, fig. 154. — 

 *H. and A. Adams, Gen. Rec. Moll., II, 1857, p. 491. — 'P.etel, Conch. Sam., 

 Ill, 1890, p. 163.— * Westerlund, Faun. Pal., II, Pt. 1, 1890, p. 118. 



* Margarita (Unio) ])latyrhynchus Lea, Syn., 1836, p. 35; 1838, p. 24. 

 '^ Maryaron {Unio) lylatyrhynclius Lea, Syu., 1852, p. 36; 1870, p. 58. 



* Unio fiscallianns Kleciach, Atti. Soc. Ital., XV, 1872, p. 92. — *Pfeifker and 



KOBSLT, Mai. Blatt., XX, 1873, p. 92, fig. 

 Unio limosus * Kobelt, Icon., new ser., VI, 1893, p. 44,~pl. clvii, figs. 1024-1027.' 



Central and southwestern Europe. 



' According to Kobelt in above reference, hia platyj-hynchus = tlie liinosus of Nilsson. 

 Nilsson does not figure his species in Hist. Moll. Svec, but refers to x)l. V, fig. 10, 

 in Pfeiffer's Land and Susswasser Mollusken, which is plainly a Unio incturitni. 

 Kobelt's figures, the latter three certainly, are genuine platyrhyncluis, which I 

 consider a jierfectly good species. 



