»9 



251 V. scripta sp. plur. rar. magnlt. 



a. V. — Var. antice transversim sulcata^ 

 An nova species ? sp. 2» 



52 Vi edentula sp. unic. 



a. V. — fossilis, sp. unic, 



b. V. — Var. inln. sp. iinic. 



53 V. concentrica. sp. 2. 



a. V. — Var. min. ap. plur. 



54 V. juvenilis sp. unic. * 



55 V. hlstrio. sp. unic (Vix a Venere Juve- 

 nili distincta species, potius hujus varietas.) 



56 V. litterata. sp. unic. 



a. V. — Var. nebulosa. sp, plur, var, 



magnit. 



b. V. — Var. punctata. sp. unic. 



c. V. • — Var. minor. Chemn. vi. fig. 3^4' 



(japonica Gmelini). sp. unic. 



57 V. rotundata. sp. unic. 



58 V. decussata. sp. 3. 



a. V. — Var. radiata. sp. 2. 



59 V. virginea. sp. plur. 



a. V. — Var. Chemn. vi£. fig. 458. sp. 3« 



60 V. fluminalis. ibid, fig. 3:^0. sp. unic. 



61 V. fluviatilis. ibid. fig. 321. sp. 2. 



a. V. — Var. minima e Groenlandia; 

 sp. unic, 



B 3^ 



