291 — 



Unio rliomboidea Schrott 

 V. litoralis. 



riparius C. Pfr. v. batavus 

 var. 



rivularis Rossm. v. bata- 

 vus var 



Robianoi de Malz. . 



robnstus Villa 



Rohrmanni Kob. v. tumi- 

 dus var 



romanus Rig. 



rostratus C. Pfr. v. picto- 

 rum var 



rostratus Stud. v. tumidus 



Rothii Bgt 



rotuudata Maud. v. ba- 

 tavus 



Rousii Dup 



rubens Mke. v. crassus 

 var 



rugatus Mke. v. crassus 

 var 



rugosa Poiret v. sinuatus 



Rykholtii Malz. . . 



saccatus Rossm. v. tumi- 

 dus var 



Sandrii Villa .... 



Sarratinus St. Germain 

 V. batavus var 



Schrenckianus Cless. 



Schwerzenbachi Parr. 



Sebineusis Ad. 



sericatus Rossm 

 Sandrii var. 



Sieversi Drouet 



Simonis Tristr 



sinuatus Lam. 



sinuatus Stud. v. batavus 



Sitifiensis Morel, v. Du- 

 rieui 



solida Turt. v. tumidus 



Sfiite 



153 

 156 



161 

 160 



159 

 160 

 153 



156 



159 



156 



153 

 161 



160 



158 



156 

 159 

 157 

 160 



158 

 157 

 158 

 153 

 156 



137 

 160 



Seite 

 IT n i o Spinellii Villa . . — 

 squamosus Charp. v. ba- 

 tavus var 156 



StepanofFi Drouet. . . 157 



Stevenianus Kryn. . . -— 



subreniformis Bgt. . . 531 



subtetragonus Mich. . — 



subtilis Drouet. . . . 157 

 subtriangularis Dup. v. 



Moquinianus var. . 158 



syriacus Lea .... — 

 taunicus Kob. v. batavus 



var 156 



terminalis Bgt. . . . 161 



tigridis Bgt — 



tristis Morel, v. margari- 



tifera juv. . . . — 



truncatus Rve. v. tigridis — 



tumidus Retz . . . 160 



turcicus Parr. v. Vescoi 157 



Turtoui Payr. . . . 160 



umbonatus Rossm. . . 153 



valentinus Rossm. . . 160 



Vescoi Bgt 157 



vicarius Westerl. . . — 



viridiflavus Kstr. . . — 



Zelebori Parr. v. tumidus 160 



19* 



