146 C- A. Westerlund, 



Gen. PALUDINA Lamarck. 



Testa ssepius 3-fasciata, ovata vel conoidca, anfractibus convexis vcl 

 subcyliiidraceis ; peristoma continuum, tenue; ojiercvhnn corneuni, nucleo la- 

 téral!. Aiiimal Q viviparum; penis çf in tentaculo dcxtro cra.s.sato occul- 

 tus; oculi pedicellati. 



1. PALUDINA VIVIPARA (Lin.). 



Testa imperforata (obtecte perforata), ovato-conoidea, solida, obsole- 

 tissinie spiraliter striata, vix pellucida, fasciis longitudinalibus rufu-fiiscis, 

 tribus; spira obtusiuscula; aiifr. 4 — 5, paruni convexi, celeriter accrescentes, 

 sutura mediocri, idtimus tumescenti-anipliatus; apertvra rotundato-ovata, su- 

 perne subacute sinuata; peristoma acutum, margine columellari reflexo. Diam. 

 18—20 mm., ait. 25—28 mm. 



Helix vwipara ]jiiiu6 Syst. Niit. X (17.58) p. 772; Fiuuia Su. éd. 2 (17G1) p. 529. 



Neiita fasciata Jliiller Verni. Hist. II (1774) p. 182. 



Paludina vi.vijntra Nilsson pr. p. Hist. Moll. Su. (1822) p. 88. Högberg Typsamling. 



Malm Göteb. Yet., Vitt. Sanilus Haiuil. Ill (1855) p. 126. JIoquiii-Taiulon JIoll. 



Fr. II (1855) p. 535. t. 40. f. 25. Nord, et Nyl. Fini. Moll. (185G) p. 71. f. 



60. Jeffreys Brit. Coiicb. I (1862) p. 58. Keeve Brit, Moll. (1863) p. 195. 



Westerluud Sv. Moll. (1865) p. 113; Coll. Typ. Moll. Su. (1868) n:o 103. 

 Palndma achatina Tiossmässler Iconogr. I (1835) p. 109. f. 66*. Haiiséu ÖlVers. af 



K. Vet. Akad. Förh. 1845 p. 254. 

 Palmllna fasciata Stein Sehn. u. Musch. Berl. (1850) p. 90. t. 3. f. 2. 

 Vivipara fasciata v. Frauenfeld Verzeichn. Nom. Galt. Pahulina in Verliandl. zool.-bot- 



Gesellsch. in Wien XIV (1864) p. 605. 

 Viviparus fasciatus Mörch Syn. Moll. Da\i. (1864) p. 62. 



1. efasciiita. 



Pullus: testa seriatim ciliata; niartro pallii lobis tribus triangulari- 

 subulatis. 



Hah. In Suecia media et ejus parte oricntali lia?e species passim 

 frequens. Terminus borcalis milii cognitus est ostium amnis Gefleån (teste 

 ainic. C. G. Andersson!) et meridionalis est regio urbis Westervik (teste 

 beat. E. v. Goes!). In prov. Östergötland ad Norrköping- invenit dr. 

 Hansen; in Ncrike in lacubus et amnibus regionis campestris (ex. gr. in 

 lacu Hjelmaren, Mosjön, Qvismaresjöarnc, in ämne Svartan ad 33 mm. alt.) 

 ubiquc copiosissime (Hartman); in provinciis circa Mälaren (Söderman- 

 land, Upland, Westraanlaiid), in hoc lacu, in fluviis et amnibus in illo 



