144 C.-A. Westeklund, 



Valvata macro.itoma Stecnbuch Amtlicher Bericht Naturt'. u. Aerzte 1847. p. 123. Mörch 

 Syn. Moll. Diin. (1864) p. 59. Westerlund Sv. Moll. (1865) p. 118. 



Valvata dejjressa Hausen K. Yet. Akad. Ofvers. Pörh. 1848) p. 201. Stein Sehn. u. 

 Miisoh. Berl. (1850) p. 87. t. 2. f. 9. Nord, et Nyl. Fini. Moll. (1856) p. 69. 

 f. 57. 



ß nialleata: testa lineis spiralibus eievatis, interstitiis malleati.s. 



Hab. Ill Suecia lifec species primus detexit dr. Hansen in Svart- 

 g'olen prov. Östergötland et in liac provincia pra;terca niultis locis occur- 

 rit (teste beat. E. v. Goes!); ad Cliristianstad prov. Skåne legit clar. CO. 

 V. PoRATH, ad Ultuna prope Upsala prov. Upland amiciss. J. E. Zetter- 

 STEDT et W. LiLLJEBORG et in riviilo ad Stora Dahlby ins. Öland hane te- 

 stam ipse inveni. 



3. VALVATA PISCINALIS Müll. 



I'esta oblique orbiculato-trochoidea, aperte seu subobtecte umbilicata, 

 fusco-cornea, subtilitei striata; sjnra convexa; anfr. 4 — 5, sutiu'a mediocri 

 disjuncti, ultimus superne depressiusculus, ampliatus, subventricosus. Diam. 

 4 — 5, alt. 4 mm. 



Nerita piscinalis Müller Verm. Hist. II (1774) p. 172. 



Valvata piscinalis Nilsson Hist. Moll. Su. (1822) p. 85. Stein Schn. u. Jlnsch. Berl. 

 (1850) p. 86. t. 2. f. 28. Friele Norske Moll. (1853) p. 43. Moquiu-Tandon 

 Moll. Fr. II (1855) p. 540. t. 41. f. 16 — 18. Jeffreys Brit. Conch. I (1862) 

 p. 72. Reeve Brit. Moll. (1863) p. 198. Mörch Syn. Moll. Dan. (1864) p. 59. 

 Westerlund Sv. Moll. (1865) p. 118; Coll. Typ. BJoll. Su. (1868) n:o 109. 



Junior ("anfr. 3 — 3 -J-, spira magis depressa seu depresse globosa , apertura circinnata, 

 patula": Nilss.) = Valvata depressa C. Pfeiffer Deutschi. Moll. I. p. 100. t. 4. 

 f. 33. V. 2^isc. Y depressa Moq. -Tandon 1. c. fig. 24. Jeffreys. 



Hab. In Suecia in fluviis et fossis plerisqne prov. Skåne, ex. gr. 

 in Höje å (Nilsson), Alma å (Malm), in arane ad Käflinge (Wallin !!) , ad 

 Krageholm (Hemberg!), ad Trolleberg etc.; in prov. Blekinge: in lacu 

 Wesan (Gosselman), in Herrstorpssjön prope Ronneby raro; ins. Öland: 

 in rivö ad Kohlstad prope Borgholm parcissime; ins. Gotland specim. 

 mortua in stagnis tere omnibus (diam. et alt. 8 mm.: Lindström); prov. 

 Östergötland inultis locis (frequcns in Nackebosjön: E. V. Goes!); prov. 

 Westergötland: ad Göteborg passim (ex. gr. Möllndals â, Qvillebäcken, 

 Tingsstadsränna, Stadswasseu: Malm); prov. Nerike: ad Skebäck et in 

 Fjugestabäcken par. Knista (Hartman); ad Stockholm: in lacu Bomsjön 

 ad Carlberg (Hügberg, Wikström); prov. Westmanland: in ämne Svartån 



