) 6t ( 
Limneus stagnalis, Dionis Hist. des Moll. p. 5r. t. 
2. f. 38, 39. — Pfeiff. Land- u. Wasserschn. p. 
BE 64. f, 19. Id. t... 1. £ ax. 
| ——— rp. cjunior: 'Testa minor, imperforata, ovato- 
subulata, tenera , pellucida, albida vel lutescens; 
apertura ovato-oblonga. 
Helix fragilis, Linn. Faun. Sv. p. 53o. 
ZInimal fusco-griseum, punctis albidis quasi 
-arena adspersum. Testa animale fcta nigricans an- 
 fractu ultimo fuscescente, In /2. animal albidum ; 
testa 'animalcülo focta pallida, luteo vel fusco varie- 
gala 5 spira apice nigro. 
A: uatomiam animalis, fipuris egregiis inb. 
tam, vide in: Memoires pour servir à l'hist. E? à 
bauat. des Moll. pav. Cuvign. Paris 1817. | 4:to. 
Testa ovato-cblonga, tenui, pellucida, griseo- 
rufescens, substriata, striis anfractus ultimi irans- . 
versis subílexuosis. Anfractus 7 —7 £4, quorum ul- 
inus maximus, ventricosus, presertim superius, quà 
piam spectat, unde non sensim sed abrupte in su- 
turam descendit ; penultimus multo minor, convexuss 
ceteri sensim minores planulati, spiram  subulatam 
formant. -Apertura magna, ovata vel oblongo-ovata, 
superne subobtusata, labro repando, acuto. Fissura 
umbilicalis nulla. 
Habitat in fossis, stagnis, paludibus &c. frequens. 
2, Lymnea auricularia, 
L. fería subrofundo-ovata, perforata ; pira 
Br evissina acumuinaía; | apertura amplissima , e- 
7r 
