) 6i ( 



Litmeus stagnalis, Draparih Hist. des Moll. p. 5i. t. 

 2. f. 38, 3ij. — Pfeiff. Land- u. Wasserschn. p. 

 86. t. 4. f. ,19. Id. t. 1. f. 11. 



• /3» ffitnior : Testa minor, imperforata, ovato- 



subulata, tenera , pellucida, aibida vel lutescens: 



apertura ovato-oblonga. 



Helix fragilis, Linn. Faun. Sv. p. 53o. 



Aniinal fusco-griseum, punctis albidis quasi ' 

 arena adspersum. Testa animaJe focta nigricans an- 

 fractu ultimo fuscescente. In /3» animal albidurn 5 

 testa animalculo foeta pallida, luteo vel fusco varie- 

 gata ; spira apice nigro. 



Anatomiam animalis, figuris egregiis illustra- 

 tam, vide in : Memoires pour servir d Vkist. & a 

 Vanat. des Moll. par Ctjvier. Paris 181 7. fcto. 



Tcsta ovato-oblonga, tenui, pelhicida, grisco- 

 rufescens, substriata, striis anfractus ultimi trans- 

 versis subflexuosis. Anfractus 7 — y£, quorum ul- 

 tiraus maximus, ventricosus, praesertim sirperius, qua 

 spiram speetat, unde non sensim sed abrupte in su- 

 turam descendit ; penultimus multo minor, convexus* 

 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 6cc. frequens. 



2, Lymnesa auricularia. 



L. testa subrotundo-ovata, perforata ; spira 

 brevissiuia acuminafa ; apertura ampltssima , se- 



mu 



